sync new message message read or unread notification display better between device ui and ble app; keep in channel after message sent, moved sent toaster popup to in channel

- Bond clearing on firmware version change (lines 38-67) — stores the firmware version string in SPIFFS at /ble_ver. On boot, if it doesn't match, all stored bonds are wiped. This fixes the forget/re-pair issue after flashing. Normal reboots keep pairing intact.
- TX power -3 dBm (line 73).
Connection parameter negotiation (lines 137-147) — latency=4 for power saving when connected.
- Advertising intervals 300ms/600ms (three places) — compromise between discovery speed and power.
- No controller power-down — the header file is unchanged from stock.

.vscode/extensions.json

@@ -1,4 +1,6 @@
 {
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
     "recommendations": [
         "pioarduino.pioarduino-ide",
         "platformio.platformio-ide"

Audiobook Player Guide.md

@@ -0,0 +1,78 @@
+## Audiobook Player (Audio variant only)
+
+Press **P** from the home screen to open the audiobook player.
+Place `.mp3`, `.m4b`, `.m4a`, or `.wav` files in `/audiobooks/` on the SD card.
+Files can be organised into subfolders (e.g. by author) — use **Enter** to
+browse into folders and **.. (up)** to go back.
+
+| Key | Action |
+|-----|--------|
+| W / S | Scroll file list / Volume up-down |
+| Enter | Select book or folder / Play-Pause |
+| A | Seek back 30 seconds |
+| D | Seek forward 30 seconds |
+| [ | Previous chapter (M4B only) |
+| ] | Next chapter (M4B only) |
+| Q | Leave player (audio continues) / Close book (when paused) / Exit (from file list) |
+
+### Recommended Format
+
+**MP3 is the recommended format.** M4B/M4A files are supported but currently
+have playback issues with the ESP32-audioI2S library — some files may fail to
+decode or produce silence. MP3 files play reliably and are the safest choice.
+
+MP3 files should be encoded at a **44100 Hz sample rate**. Lower sample rates
+(e.g. 22050 Hz) can cause distortion or playback failure due to ESP32-S3 I2S
+hardware limitations.
+
+**Bookmarks** are saved automatically every 30 seconds during playback and when
+you stop or exit. Reopening a book resumes from your last position.
+
+**Cover art** from M4B files is displayed as dithered monochrome on the e-ink
+screen, along with title, author, and chapter information.
+
+**Metadata caching** — the first time you open the audiobook player, it reads
+title and author tags from each file (which can take a few seconds with many
+files). This metadata is cached to the SD card so subsequent visits load
+near-instantly. If you add or remove files the cache updates automatically.
+
+### Background Playback
+
+Audio continues playing when you leave the audiobook player screen. Press **Q**
+while audio is playing to return to the home screen — a **>>** indicator will
+appear in the status bar next to the battery icon to show that audio is active
+in the background. Press **P** at any time to return to the player screen and
+resume control.
+
+If you pause or stop playback first and then press **Q**, the book is closed
+and you're returned to the file list instead.
+
+### Audio Hardware
+
+The audiobook player uses the PCM5102A I2S DAC on the audio variant of the
+T-Deck Pro (I2S pins: BCLK=7, DOUT=8, LRC=9). Audio is output via the 3.5mm
+headphone jack.
+
+> **Note:** The audiobook player is not available on the 4G modem variant
+> due to I2S pin conflicts.
+
+### SD Card Folder Structure
+
+```
+SD Card
+├── audiobooks/
+│   ├── .bookmarks/          (auto-created, stores resume positions)
+│   │   ├── mybook.bmk
+│   │   └── another.bmk
+│   ├── .metacache            (auto-created, speeds up file list loading)
+│   ├── Ann Leckie/
+│   │   ├── Ancillary Justice.mp3
+│   │   └── Ancillary Sword.mp3
+│   ├── Iain M. Banks/
+│   │   └── The Algebraist.mp3
+│   ├── mybook.mp3
+│   └── podcast.mp3
+├── books/                   (existing — text reader)
+│   └── ...
+└── ...
+```

README.md

@@ -1,24 +1,250 @@
+## Meshcore + Fork = Meck 
+This fork was created specifically to focus on enabling BLE companion firmware for the LilyGo T-Deck Pro. Created with the assistance of Claude AI using Meshcore v1.11 code. 
+
+### Contents
+- [T-Deck Pro Keyboard Controls](#t-deck-pro-keyboard-controls)
+  - [Navigation (Home Screen)](#navigation-home-screen)
+  - [Bluetooth (BLE)](#bluetooth-ble)
+  - [Clock & Timezone](#clock--timezone)
+  - [Channel Message Screen](#channel-message-screen)
+  - [Contacts Screen](#contacts-screen)
+  - [Sending a Direct Message](#sending-a-direct-message)
+  - [Repeater Admin Screen](#repeater-admin-screen)
+  - [Settings Screen](#settings-screen)
+  - [Compose Mode](#compose-mode)
+  - [Symbol Entry (Sym Key)](#symbol-entry-sym-key)
+  - [Emoji Picker](#emoji-picker)
+  - [SMS & Phone App (4G only)](#sms--phone-app-4g-only)
+  - [Web Browser & IRC](#web-browser--irc)
+- [About MeshCore](#about-meshcore)
+- [What is MeshCore?](#what-is-meshcore)
+- [Key Features](#key-features)
+- [What Can You Use MeshCore For?](#what-can-you-use-meshcore-for)
+- [How to Get Started](#how-to-get-started)
+- [MeshCore Flasher](#meshcore-flasher)
+- [MeshCore Clients](#meshcore-clients)
+- [Hardware Compatibility](#-hardware-compatibility)
+- [Contributing](#contributing)
+- [Road-Map / To-Do](#road-map--to-do)
+- [Get Support](#-get-support)
+- [License](#-license)
+  - [Third-Party Libraries](#third-party-libraries)
+
+## T-Deck Pro Keyboard Controls
+
+The T-Deck Pro BLE companion firmware includes full keyboard support for standalone messaging without a phone.
+
+### Navigation (Home Screen)
+
+| Key | Action |
+|-----|--------|
+| W / A | Previous page |
+| D | Next page |
+| Enter | Select / Confirm |
+| M | Open channel messages |
+| C | Open contacts list |
+| E | Open e-book reader |
+| N | Open notes |
+| S | Open settings |
+| B | Open web browser (BLE and 4G variants only) |
+| T | Open SMS & Phone app (4G variant only) |
+| P | Open audiobook player (audio variant only) |
+| Q | Back to home screen |
+
+### Bluetooth (BLE)
+
+BLE is **disabled by default** at boot to support standalone-first operation. The device is fully functional without a phone — you can send and receive messages, browse contacts, read e-books, and set your timezone directly from the keyboard.
+
+To connect to the MeshCore companion app, navigate to the **Bluetooth** home page (use D to page through) and press **Enter** to toggle BLE on. The BLE PIN will be displayed on screen. Toggle it off again the same way when you're done.
+
+### Clock & Timezone
+
+The T-Deck Pro does not include a dedicated RTC chip, so after each reboot the device clock starts unset. The clock will appear in the nav bar (between node name and battery) once the time has been synced by one of two methods:
+
+1. **GPS fix** (standalone) — Once the GPS acquires a satellite fix, the time is automatically synced from the NMEA data. No phone or BLE connection required. Typical time to first fix is 30–90 seconds outdoors with clear sky.
+2. **BLE companion app** — If BLE is enabled and connected to the MeshCore companion app, the app will push the current time to the device.
+
+**Setting your timezone:**
+
+The UTC offset can be set from the **Settings** screen (press **S** from the home screen), or from the **GPS** home page by pressing **U** to open the UTC offset editor.
+
+| Key | Action |
+|-----|--------|
+| W | Increase offset (+1 hour) |
+| S | Decrease offset (-1 hour) |
+| Enter | Save and exit |
+| Q | Cancel and exit |
+
+The UTC offset is persisted to flash and survives reboots — you only need to set it once. The valid range is UTC-12 to UTC+14. For example, AEST is UTC+10 and AEDT is UTC+11.
+
+The GPS page also shows the current time, satellite count, position, altitude, and your configured UTC offset for reference.
+
+### Channel Message Screen
+
+| Key | Action |
+|-----|--------|
+| W / S | Scroll messages up/down |
+| A / D | Switch between channels |
+| Enter | Compose new message |
+| R | Reply to a message — enter reply select mode, scroll to a message with W/S, then press Enter to compose a reply with an @mention |
+| V | View relay path of the last received message (scrollable, up to 20 hops) |
+| Q | Back to home screen |
+
+### Contacts Screen
+
+Press **C** from the home screen to open the contacts list. All known mesh contacts are shown sorted by most recently seen, with their type (Chat, Repeater, Room, Sensor), hop count, and time since last advert.
+
+| Key | Action |
+|-----|--------|
+| W / S | Scroll up / down through contacts |
+| A / D | Cycle filter: All → Chat → Repeater → Room → Sensor → Favourites |
+| Enter | Open DM compose (Chat contact) or repeater admin (Repeater contact) |
+| X | Export contacts to SD card (wait 5–10 seconds for confirmation popup) |
+| R | Import contacts from SD card (wait 5–10 seconds for confirmation popup) |
+| Q | Back to home screen |
+
+**Contact limits:** Standalone variants support up to 1,500 contacts (stored in PSRAM). BLE variants (both Audio-BLE and 4G-BLE) are limited to 500 contacts due to BLE protocol constraints.
+
+### Sending a Direct Message
+
+Select a **Chat** contact in the contacts list and press **Enter** to start composing a direct message. The compose screen will show `DM: ContactName` in the header. Type your message and press **Enter** to send. The DM is sent encrypted directly to that contact (or flooded if no direct path is known). After sending or cancelling, you're returned to the contacts list.
+
+### Repeater Admin Screen
+
+Select a **Repeater** contact in the contacts list and press **Enter** to open the repeater admin screen. You'll be prompted for the repeater's admin password. Characters briefly appear as you type them before being masked, making it easier to enter symbols and numbers on the T-Deck Pro keyboard.
+
+After a successful login, you'll see a menu with the following remote administration commands:
+
+| Menu Item | Description |
+|-----------|-------------|
+| Clock Sync | Push your device's clock time to the repeater |
+| Send Advert | Trigger the repeater to broadcast an advertisement |
+| Neighbors | View other repeaters heard via zero-hop adverts |
+| Get Clock | Read the repeater's current clock value |
+| Version | Query the repeater's firmware version |
+| Get Status | Retrieve repeater status information |
+
+| Key | Action |
+|-----|--------|
+| W / S | Navigate menu items |
+| Enter | Execute selected command |
+| Q | Back to contacts (from menu) or cancel login |
+
+Command responses are displayed in a scrollable view. Use **W / S** to scroll long responses and **Q** to return to the menu.
+
+### Settings Screen
+
+Press **S** from the home screen to open settings. On first boot (when the device name is still the default hex ID), the settings screen launches automatically as an onboarding wizard to set your device name and radio preset.
+
+| Key | Action |
+|-----|--------|
+| W / S | Navigate up / down through settings |
+| Enter | Edit selected setting |
+| Q | Back to home screen |
+
+**Available settings:**
+
+| Setting | Edit Method |
+|---------|-------------|
+| Device Name | Text entry — type a name, Enter to confirm |
+| Radio Preset | A / D to cycle presets (MeshCore Default, Long Range, Fast/Short, EU Default), Enter to apply |
+| Frequency | W / S to adjust, Enter to confirm |
+| Bandwidth | W / S to cycle standard values (31.25 / 62.5 / 125 / 250 / 500 kHz), Enter to confirm |
+| Spreading Factor | W / S to adjust (5–12), Enter to confirm |
+| Coding Rate | W / S to adjust (5–8), Enter to confirm |
+| TX Power | W / S to adjust (1–20 dBm), Enter to confirm |
+| UTC Offset | W / S to adjust (-12 to +14), Enter to confirm |
+| Channels | View existing channels, add hashtag channels, or delete non-primary channels (X) |
+| Device Info | Public key and firmware version (read-only) |
+
+The bottom of the settings screen also displays your node ID and firmware version. On the 4G variant, IMEI, carrier name, and APN details are shown here as well.
+
+When adding a hashtag channel, type the channel name and press Enter. The channel secret is automatically derived from the name via SHA-256, matching the standard MeshCore hashtag convention.
+
+If you've changed radio parameters, pressing Q will prompt you to apply changes before exiting.
+
+### Compose Mode
+
+| Key | Action |
+|-----|--------|
+| A / D | Switch destination channel (when message is empty, channel compose only) |
+| Enter | Send message |
+| Backspace | Delete last character |
+| Shift + Backspace | Cancel and exit compose mode |
+
+### Symbol Entry (Sym Key)
+
+Press the **Sym** key then the letter key to enter numbers and symbols:
+
+| Key | Sym+ | | Key | Sym+ | | Key | Sym+ |
+|-----|------|-|-----|------|-|-----|------|
+| Q | # | | A | * | | Z | 7 |
+| W | 1 | | S | 4 | | X | 8 |
+| E | 2 | | D | 5 | | C | 9 |
+| R | 3 | | F | 6 | | V | ? |
+| T | ( | | G | / | | B | ! |
+| Y | ) | | H | : | | N | , |
+| U | _ | | J | ; | | M | . |
+| I | - | | K | ' | | Mic | 0 |
+| O | + | | L | " | | $ | Emoji picker (Sym+$ for literal $) |
+| P | @ | | | | | | |
+
+### Other Keys
+
+| Key | Action |
+|-----|--------|
+| Shift | Uppercase next letter |
+| Alt | Same as Sym (for numbers/symbols) |
+| Space | Space character / Next in navigation |
+
+### Emoji Picker
+
+While in compose mode, press the **$** key to open the emoji picker. A scrollable grid of 47 emoji is displayed in a 5-column layout.
+
+| Key | Action |
+|-----|--------|
+| W / S | Navigate up / down |
+| A / D | Navigate left / right |
+| Enter | Insert selected emoji |
+| $ / Q / Backspace | Cancel and return to compose |
+
+### SMS & Phone App (4G only)
+
+Press **T** from the home screen to open the SMS & Phone app. The app opens to a menu screen where you can choose between the **Phone** dialer (for calling any number) or the **SMS Inbox** (for messaging and calling saved contacts).
+
+For full documentation including key mappings, dialpad usage, contacts management, and troubleshooting, see the [SMS & Phone App Guide](SMS%20%26%20Phone%20App%20Guide.md).
+
+### Web Browser & IRC
+
+Press **B** from the home screen to open the web reader. This is available on the BLE and 4G variants (not the standalone audio variant, which excludes WiFi to preserve lowest-battery-usage design).
+
+The web reader home screen provides access to the **IRC client**, the **URL bar**, and your **bookmarks** and **history**. Select IRC Chat and press Enter to configure and connect to an IRC server. Select the URL bar to enter a web address, or scroll down to open a bookmark or history entry.
+
+The browser is a text-centric reader best suited to text-heavy websites. It also includes basic web search via DuckDuckGo Lite, and can download EPUB files — follow a link to an `.epub` and it will be saved to the books folder on your SD card for reading later in the e-book reader.
+
+For full documentation including key mappings, WiFi setup, bookmarks, IRC configuration, and SD card structure, see the [Web App Guide](Web%20App%20Guide.md).
+
 ## About MeshCore
 
 MeshCore is a lightweight, portable C++ library that enables multi-hop packet routing for embedded projects using LoRa and other packet radios. It is designed for developers who want to create resilient, decentralized communication networks that work without the internet.
 
-## 🔍 What is MeshCore?
+## What is MeshCore?
 
 MeshCore now supports a range of LoRa devices, allowing for easy flashing without the need to compile firmware manually. Users can flash a pre-built binary using tools like Adafruit ESPTool and interact with the network through a serial console.
 MeshCore provides the ability to create wireless mesh networks, similar to Meshtastic and Reticulum but with a focus on lightweight multi-hop packet routing for embedded projects. Unlike Meshtastic, which is tailored for casual LoRa communication, or Reticulum, which offers advanced networking, MeshCore balances simplicity with scalability, making it ideal for custom embedded solutions., where devices (nodes) can communicate over long distances by relaying messages through intermediate nodes. This is especially useful in off-grid, emergency, or tactical situations where traditional communication infrastructure is unavailable.
 
-## ⚡ Key Features
+## Key Features
 
 * Multi-Hop Packet Routing
   * Devices can forward messages across multiple nodes, extending range beyond a single radio's reach.
   * Supports up to a configurable number of hops to balance network efficiency and prevent excessive traffic.
   * Nodes use fixed roles where "Companion" nodes are not repeating messages at all to prevent adverse routing paths from being used.
-* Supports LoRa Radios – Works with Heltec, RAK Wireless, and other LoRa-based hardware.
-* Decentralized & Resilient – No central server or internet required; the network is self-healing.
-* Low Power Consumption – Ideal for battery-powered or solar-powered devices.
-* Simple to Deploy – Pre-built example applications make it easy to get started.
+* Supports LoRa Radios — Works with Heltec, RAK Wireless, and other LoRa-based hardware.
+* Decentralized & Resilient — No central server or internet required; the network is self-healing.
+* Low Power Consumption — Ideal for battery-powered or solar-powered devices.
+* Simple to Deploy — Pre-built example applications make it easy to get started.
 
-## 🎯 What Can You Use MeshCore For?
+## What Can You Use MeshCore For?
 
 * Off-Grid Communication: Stay connected even in remote areas.
 * Emergency Response & Disaster Recovery: Set up instant networks where infrastructure is down.
@@ -26,7 +252,7 @@ MeshCore provides the ability to create wireless mesh networks, similar to Mesht
 * Tactical & Security Applications: Military, law enforcement, and private security use cases.
 * IoT & Sensor Networks: Collect data from remote sensors and relay it back to a central location.
 
-## 🚀 How to Get Started
+## How to Get Started
 
 - Watch the [MeshCore Intro Video](https://www.youtube.com/watch?v=t1qne8uJBAc) by Andy Kirby.
 - Read through our [Frequently Asked Questions](./docs/faq.md) section.
@@ -39,27 +265,24 @@ For developers;
 - Clone and open the MeshCore repository in Visual Studio Code.
 - See the example applications you can modify and run:
   - [Companion Radio](./examples/companion_radio) - For use with an external chat app, over BLE, USB or WiFi.
-  - [Simple Repeater](./examples/simple_repeater) - Extends network coverage by relaying messages.
-  - [Simple Room Server](./examples/simple_room_server) - A simple BBS server for shared Posts.
-  - [Simple Secure Chat](./examples/simple_secure_chat) - Secure terminal based text communication between devices.
 
-The Simple Secure Chat example can be interacted with through the Serial Monitor in Visual Studio Code, or with a Serial USB Terminal on Android.
+## MeshCore Flasher
 
-## ⚡️ MeshCore Flasher
-
-We have prebuilt firmware ready to flash on supported devices.
+Download a copy of the Meck firmware bin from https://github.com/pelgraine/Meck/releases, then:
 
 - Launch https://flasher.meshcore.co.uk
-- Select a supported device
-- Flash one of the firmware types:
-  - Companion, Repeater or Room Server
+- Select Custom Firmware
+- Select the .bin file you just downloaded, and click Open or press Enter.
+- Click Flash, then select your device in the popup window (eg. USB JTAG/serial debug unit cu.usbmodem101 as an example), then click Connect.
 - Once flashing is complete, you can connect with one of the MeshCore clients below.
 
-## 📱 MeshCore Clients
+## MeshCore Clients
 
 **Companion Firmware**
 
-The companion firmware can be connected to via BLE, USB or WiFi depending on the firmware type you flashed.
+The companion firmware can be connected to via BLE.
+
+> **Note:** On the T-Deck Pro, BLE is disabled by default at boot. Navigate to the Bluetooth home page and press Enter to enable BLE before connecting with a companion app.
 
 - Web: https://app.meshcore.nz
 - Android: https://play.google.com/store/apps/details?id=com.liamcottle.meshcore.android
@@ -67,22 +290,10 @@ The companion firmware can be connected to via BLE, USB or WiFi depending on the
 - NodeJS: https://github.com/liamcottle/meshcore.js
 - Python: https://github.com/fdlamotte/meshcore-cli
 
-**Repeater and Room Server Firmware**
-
-The repeater and room server firmwares can be setup via USB in the web config tool.
-
-- https://config.meshcore.dev
-
-They can also be managed via LoRa in the mobile app by using the Remote Management feature.
-
 ## 🛠 Hardware Compatibility
 
 MeshCore is designed for devices listed in the [MeshCore Flasher](https://flasher.meshcore.co.uk)
 
-## 📜 License
-
-MeshCore is open-source software released under the MIT License. You are free to use, modify, and distribute it for personal and commercial projects.
-
 ## Contributing
 
 Please submit PR's using 'dev' as the base branch!
@@ -95,30 +306,45 @@ Here are some general principals you should try to adhere to:
 
 ## Road-Map / To-Do
 
-There are a number of fairly major features in the pipeline, with no particular time-frames attached yet. In very rough chronological order:
-- [X] Companion radio: UI redesign
-- [ ] Repeater + Room Server: add ACL's (like Sensor Node has)
-- [ ] Standardise Bridge mode for repeaters
-- [ ] Repeater/Bridge: Standardise the Transport Codes for zoning/filtering
-- [ ] Core + Repeater: enhanced zero-hop neighbour discovery
-- [ ] Core: round-trip manual path support
-- [ ] Companion + Apps: support for multiple sub-meshes (and 'off-grid' client repeat mode)
-- [ ] Core + Apps: support for LZW message compression
-- [ ] Core: dynamic CR (Coding Rate) for weak vs strong hops
-- [ ] Core: new framework for hosting multiple virtual nodes on one physical device
-- [ ] V2 protocol spec: discussion and consensus around V2 packet protocol, including path hashes, new encryption specs, etc
+There are a number of fairly major features in the pipeline, with no particular time-frames attached yet. In partly chronological order:
+- [X] Companion radio: BLE
+- [X] Text entry for Public channel messages Companion BLE firmware
+- [X] View and compose all channel messages Companion BLE firmware
+- [X] Standalone DM functionality for Companion BLE firmware
+- [X] Contacts list with filtering for Companion BLE firmware
+- [X] Standalone repeater admin access for Companion BLE firmware
+- [X] GPS time sync with on-device timezone setting
+- [X] Settings screen with radio presets, channel management, and first-boot onboarding
+- [X] Expand SMS app to enable phone calls
+- [X] Basic web reader app for text-centric websites
+- [ ] Fix M4B rendering to enable chaptered audiobook playback
+- [ ] Better JPEG and PNG decoding
+- [ ] Improve EPUB rendering and EPUB format handling
+- [ ] Map support with GPS
+- [ ] WiFi companion environment
 
 ## 📞 Get Support
 
-- Report bugs and request features on the [GitHub Issues](https://github.com/ripplebiz/MeshCore/issues) page.
-- Find additional guides and components on [my site](https://buymeacoffee.com/ripplebiz).
 - Join [MeshCore Discord](https://discord.gg/BMwCtwHj5V) to chat with the developers and get help from the community.
 
-## RAK Wireless Board Support in PlatformIO
+## 📜 License
 
-Before building/flashing the RAK4631 targets in this project, there is, unfortunately, some patching you have to do to your platformIO packages to make it work. There is a guide here on the process:
-   [RAK Wireless: How to Perform Installation of Board Support Package in PlatformIO](https://learn.rakwireless.com/hc/en-us/articles/26687276346775-How-To-Perform-Installation-of-Board-Support-Package-in-PlatformIO)
+The upstream [MeshCore](https://github.com/meshcore-dev/MeshCore) library is released under the **MIT License** (Copyright © 2025 Scott Powell / rippleradios.com). Meck-specific code (UI screens, display helpers, device integration) is also provided under the MIT License.
 
-After building, you will need to convert the output firmware.hex file into a .uf2 file you can copy over to your RAK4631 device (after doing a full erase) by using the command `uf2conv.py -f 0xADA52840 -c firmware.hex` with the python script available from:
-   [GitHub: Microsoft - uf2](https://github.com/Microsoft/uf2/blob/master/utils/uf2conv.py)
+However, this firmware links against libraries with different license terms. Because two dependencies use the **GPL-3.0** copyleft license, the combined firmware binary is effectively subject to GPL-3.0 obligations when distributed. Please review the individual licenses below if you intend to redistribute or modify this firmware.
 
+### Third-Party Libraries
+
+| Library | License | Author / Source |
+|---------|---------|-----------------|
+| [MeshCore](https://github.com/meshcore-dev/MeshCore) | MIT | Scott Powell / rippleradios.com |
+| [GxEPD2](https://github.com/ZinggJM/GxEPD2) | GPL-3.0 | Jean-Marc Zingg |
+| [ESP32-audioI2S](https://github.com/schreibfaul1/ESP32-audioI2S) | GPL-3.0 | schreibfaul1 (Wolle) |
+| [Adafruit GFX Library](https://github.com/adafruit/Adafruit-GFX-Library) | BSD | Adafruit |
+| [RadioLib](https://github.com/jgromes/RadioLib) | MIT | Jan Gromeš |
+| [JPEGDEC](https://github.com/bitbank2/JPEGDEC) | Apache-2.0 | Larry Bank (bitbank2) |
+| [CRC32](https://github.com/bakercp/CRC32) | MIT | Christopher Baker |
+| [base64](https://github.com/Densaugeo/base64_arduino) | MIT | densaugeo |
+| [Arduino Crypto](https://github.com/rweather/arduinolibs) | MIT | Rhys Weatherley |
+
+Full license texts for each dependency are available in their respective repositories linked above.

SMS & Phone App Guide.md

@@ -0,0 +1,206 @@
+## SMS & Phone App (4G variant only) - Meck v0.9.5
+
+Press **T** from the home screen to open the SMS & Phone app.
+Requires a nano SIM card inserted in the T-Deck Pro V1.1 4G modem slot and an
+SD card formatted as FAT32. The modem registers on the cellular network
+automatically at boot — the red LED on the board indicates the modem is
+powered. The modem (and its red LED) can be switched off and on from the
+settings screen. After each modem startup, the system clock syncs from the
+cellular network, which takes roughly 15 seconds.
+
+### App Menu
+
+The SMS & Phone app opens to a landing screen with two options:
+
+| Option | Description |
+|--------|-------------|
+| **Phone** | Open the phone dialer to call any number |
+| **SMS Inbox** | Open the SMS inbox for messaging and calling saved contacts |
+
+Use **W / S** to select an option and **Enter** to confirm. Press **Q** to
+return to the home screen.
+
+### Key Mapping
+
+| Context | Key | Action |
+|---------|-----|--------|
+| Home screen | T | Open SMS & Phone app |
+| App menu | W / S | Select Phone or SMS Inbox |
+| App menu | Enter | Open selected option |
+| App menu | Q | Back to home screen |
+| Inbox | W / S | Scroll conversations |
+| Inbox | Enter | Open conversation |
+| Inbox | C | Compose new SMS (enter phone number) |
+| Inbox | D | Open contacts directory |
+| Inbox | Q | Back to app menu |
+| Conversation | W / S | Scroll messages |
+| Conversation | C | Reply to this conversation |
+| Conversation | F | Call this number |
+| Conversation | A | Add or edit contact name for this number |
+| Conversation | Q | Back to inbox |
+| Compose | Enter | Send SMS (from body) / Confirm phone number (from phone input) |
+| Compose | Shift+Del | Cancel and return |
+| Contacts | W / S | Scroll contact list |
+| Contacts | Enter | Compose SMS to selected contact |
+| Contacts | F | Call selected contact |
+| Contacts | Q | Back to inbox |
+| Edit Contact | Enter | Save contact name |
+| Edit Contact | Shift+Del | Cancel without saving |
+| Phone Dialer | 0–9, *, +, # | Enter phone number (see input methods below) |
+| Phone Dialer | Enter | Place call |
+| Phone Dialer | Backspace | Delete last digit |
+| Phone Dialer | Q | Back to app menu |
+| Dialing | Enter or Q | Cancel / hang up |
+| Incoming Call | Enter | Answer call |
+| Incoming Call | Q | Reject call |
+| In Call | Enter or Q | Hang up |
+| In Call | W / S | Volume up / down (0–5) |
+| In Call | 0–9, *, # | Send DTMF tone |
+
+### Sending an SMS
+
+There are three ways to start a new message:
+
+1. **From inbox** — press **C**, type the destination phone number, press
+   **Enter**, then type your message and press **Enter** to send.
+2. **From a conversation** — press **C** to reply. The recipient is
+   pre-filled so you go straight to typing the message body.
+3. **From the contacts directory** — press **D** from the inbox, scroll to a
+   contact, and press **Enter**. The compose screen opens with the number
+   pre-filled.
+
+Messages are limited to 160 characters (standard SMS). A character counter is
+shown in the footer while composing.
+
+### Making a Phone Call
+
+There are three ways to start a call:
+
+1. **From the phone dialer** — select **Phone** from the app menu to open the
+   dialer. Enter a phone number and press **Enter** to call. This is the
+   easiest way to call a number you haven't messaged before.
+2. **From a conversation** — open a conversation and press **F**. You can call
+   any number you have previously exchanged messages with, whether or not it is
+   saved as a named contact.
+3. **From the contacts directory** — press **D** from the inbox, scroll to a
+   contact, and press **F**.
+
+The display switches to a dialing screen showing the contact name (or phone
+number) and an animated progress indicator. Once the remote party answers, the
+screen transitions to the in-call view with a live call timer.
+
+During an active call, **W** and **S** adjust the speaker volume (0–5). The
+number keys **0–9**, **\***, and **#** send DTMF tones for navigating phone
+menus and voicemail systems. Press **Enter** or **Q** to hang up.
+
+Audio is routed through the A7682E modem's internal codec to the board speaker
+and microphone — no headphones or external audio hardware are required.
+
+### Phone Dialer Input Methods
+
+The phone dialer supports three ways to enter digits:
+
+1. **Direct key press** — press the keyboard letter that corresponds to each
+   number using the silk-screened labels on the T-Deck Pro keys:
+
+   | Key | Digit | | Key | Digit | | Key | Digit |
+   |-----|-------|-|-----|-------|-|-----|-------|
+   | W | 1 | | S | 4 | | Z | 7 |
+   | E | 2 | | D | 5 | | X | 8 |
+   | R | 3 | | F | 6 | | C | 9 |
+   | A | * | | O | + | | Mic | 0 |
+
+2. **Touchscreen tap** — tap the on-screen number buttons directly. Note: this
+   currently requires fairly precise taps on the numbers themselves.
+
+3. **Sym+key** — the standard symbol entry method (e.g. Sym+W for 1, Sym+S for
+   4, etc.)
+
+### Receiving a Phone Call
+
+When an incoming call arrives, the app automatically switches to the incoming
+call screen regardless of which view is active. A short alert and buzzer
+notification are triggered. The caller's name is shown if saved in contacts,
+otherwise the raw phone number is displayed.
+
+Press **Enter** to answer or **Q** to reject the call. If the call is not
+answered it is logged as a missed call and a "Missed: ..." alert is shown
+briefly.
+
+### Contacts
+
+The contacts directory lets you assign display names to phone numbers.
+Names appear in the inbox list, conversation headers, call screens, and
+compose screen instead of raw numbers.
+
+To add or edit a contact, open a conversation with that number and press **A**.
+Type the display name and press **Enter** to save. Names can be up to 23
+characters long.
+
+Contacts are stored as a plain text file at `/sms/contacts.txt` on the SD card
+in `phone=Display Name` format — one per line, human-editable. Up to 30
+contacts are supported.
+
+### Conversation History
+
+Messages are saved to the SD card automatically and persist across reboots.
+Each phone number gets its own file under `/sms/` on the SD card. The inbox
+shows the most recent 20 conversations sorted by last activity. Within a
+conversation, the most recent 30 messages are loaded with the newest at the
+bottom (chat-style). Sent messages are shown with `>>>` and received messages
+with `<<<`.
+
+Message timestamps use the cellular network clock (synced via NITZ roughly 15
+seconds after each modem startup) and display as relative times (e.g. 5m, 2h,
+1d). If the modem is toggled off and back on, the clock re-syncs automatically.
+
+### Modem Power Control
+
+The 4G modem can be toggled on or off from the settings screen. Scroll to
+**4G Modem: ON/OFF** and press **Enter** to toggle. Switching the modem off
+kills its red status LED and stops all cellular activity. The setting persists
+to SD card and is respected on subsequent boots — if disabled, the modem and
+LED stay off until re-enabled. The SMS & Phone app remains accessible when the
+modem is off but will not be able to send or receive messages or calls.
+
+### Signal Indicator
+
+A signal strength indicator is shown in the top-right corner of all SMS and
+call screens. Bars are derived from the modem's CSQ (signal quality) reading,
+updated every 30 seconds. The modem state (REG, READY, OFF, etc.) is shown
+when not yet connected. During a call, the signal indicator remains visible.
+
+### IMEI, Carrier & APN
+
+The 4G modem's IMEI, current carrier name, and APN are displayed at the bottom
+of the settings screen (press **S** from the home screen), alongside your node
+ID and firmware version.
+
+### SD Card Structure
+
+```
+SD Card
+├── sms/
+│   ├── contacts.txt           (plain text, phone=Name format)
+│   ├── modem.cfg              (0 or 1, modem enable state)
+│   ├── 0412345678.sms         (binary message log per phone number)
+│   └── 0498765432.sms
+├── books/                     (text reader)
+├── audiobooks/                (audio variant only)
+└── ...
+```
+
+### Troubleshooting
+
+| Symptom | Likely Cause |
+|---------|-------------|
+| Modem icon stays at REG / never reaches READY | SIM not inserted, no signal, or SIM requires PIN unlock (not currently supported) |
+| Timestamps show `---` | Modem clock hasn't synced yet (wait ~15 seconds after modem startup), or messages were saved before clock sync was available |
+| Red LED stays on after disabling modem | Toggle the setting off, then reboot — the boot sequence ensures power is cut when disabled |
+| SMS sends but no delivery | Check signal strength; below 5 bars is marginal. Move to better coverage |
+| Call drops immediately after dialing | Check signal strength and ensure the SIM plan supports voice calls |
+| No audio during call | The A7682E routes audio through its own codec; ensure the board speaker is not obstructed. Try adjusting volume with W/S |
+
+> **Note:** The SMS & Phone app is only available on the 4G modem variant of
+> the T-Deck Pro. It is not present on the audio or standalone BLE builds due
+> to shared GPIO pin conflicts between the A7682E modem and PCM5102A DAC.

TXT & EPUB Reader Guide.md

@@ -0,0 +1,116 @@
+# Text & EPUB Reader Integration for Meck Firmware
+
+## Overview
+
+This adds a text reader accessible via the **R** key from the home screen.
+
+**Features:**
+- Browse `.txt` and `.epub` files from `/books/` folder on SD card
+- Automatic EPUB-to-text conversion on first open (cached for instant re-opens)
+- Word-wrapped text rendering using tiny font (maximum text density)  
+- Page navigation with W/S/A/D keys
+- Automatic reading position resume (persisted to SD card)
+- Index files cached to SD for instant re-opens
+- Bookmark indicator (`*`) on files with saved positions
+
+**Key Mapping:**
+| Context | Key | Action |
+|---------|-----|--------|
+| Home screen | E | Open text reader |
+| File list | W/S | Navigate up/down |
+| File list | Enter | Open selected file |
+| File list | Q | Back to home screen |
+| Reading | W/A | Previous page |
+| Reading | S/D/Space/Enter | Next page |
+| Reading | Q | Close book → file list |
+| Reading | C | Enter compose mode |
+
+---
+
+## SD Card Setup
+
+Place `.txt` or `.epub` files in a `/books/` folder on the SD card root. The reader will:
+- Auto-create `/books/` if it doesn't exist
+- Auto-create `/.indexes/` for page index cache files
+- Auto-create `/books/.epub_cache/` for converted EPUB text
+- Skip macOS hidden files (`._*`, `.DS_Store`)
+- Support up to 50 files
+
+**Index format** is compatible with the standalone reader (version 4), so if you've used the standalone reader previously, bookmarks and indexes will carry over.
+
+---
+
+## EPUB Support
+
+### How It Works
+
+EPUB files are transparently converted to plain text on first open. The conversion pipeline is:
+
+1. **File list** — `scanFiles()` picks up both `.txt` and `.epub` files from `/books/`
+2. **First open** — `openBook()` detects the `.epub` extension and triggers conversion:
+   - Shows a "Converting EPUB..." splash screen
+   - Extracts the ZIP structure using ESP32-S3's built-in ROM `tinfl` decompressor (no external library needed)
+   - Parses `META-INF/container.xml` → finds the OPF file
+   - Parses the OPF manifest and spine to get chapters in reading order
+   - Extracts each XHTML chapter, strips tags, decodes HTML entities
+   - Writes concatenated plain text to `/books/.epub_cache/<filename>.txt`
+3. **Subsequent opens** — the cached `.txt` is found immediately and opened like any regular text file
+
+### Cache Structure
+
+```
+/books/
+  MyBook.epub              ← original EPUB (untouched)
+  SomeStory.txt            ← regular text file
+  .epub_cache/
+    MyBook.txt             ← auto-generated from MyBook.epub
+/.indexes/
+  MyBook.txt.idx           ← page index for the converted text
+```
+
+- The original `.epub` file is never modified
+- Deleting a cached `.txt` from `.epub_cache/` forces re-conversion on next open
+- Index files (`.idx`) work identically for both regular and EPUB-derived text files
+- Boot scan picks up previously cached EPUB text files so they appear in the file list even before the EPUB is re-opened
+
+### EPUB Processing Details
+
+The conversion is handled by three components:
+
+| Component | Role |
+|-----------|------|
+| `EpubZipReader.h` | ZIP central directory parsing + `tinfl` decompression (supports Store and Deflate) |
+| `EpubProcessor.h` | EPUB structure parsing (container.xml → OPF → spine) and XHTML tag stripping |
+| `TextReaderScreen.h` | Integration: detects `.epub`, triggers conversion, redirects to cached `.txt` |
+
+**XHTML stripping handles:**
+- Tag removal with block-element newlines (`<p>`, `<br>`, `<div>`, `<h1>`–`<h6>`, `<li>`, etc.)
+- `<head>`, `<style>`, `<script>` content skipped entirely
+- HTML entity decoding: named (`&amp;`, `&mdash;`, `&ldquo;`, etc.) and numeric (`&#8212;`, `&#x2014;`)
+- Smart quote / em-dash / ellipsis → ASCII equivalents (e-ink font is ASCII-only)
+- Whitespace collapsing and cleanup
+
+**Limits:**
+- Max 200 chapters in spine (`EPUB_MAX_CHAPTERS`)
+- Max 256 manifest items (`EPUB_MAX_MANIFEST`)
+- Manifest and chapter data are heap-allocated in PSRAM where available
+- Typical conversion time: 2–10 seconds depending on book size
+
+### Troubleshooting
+
+| Symptom | Likely Cause |
+|---------|-------------|
+| "Convert failed!" splash | EPUB may be DRM-protected, corrupted, or use an unusual structure |
+| EPUB appears in list but opens as blank | Check serial output for `EpubProc:` messages; chapter count may be 0 |
+| Stale content after replacing an EPUB | Delete the matching `.txt` from `/books/.epub_cache/` to force re-conversion |
+
+---
+
+## Architecture Notes
+
+- The reader renders through the standard `UIScreen::render()` framework, so no special bypass is needed in the main loop (unlike compose mode)
+- SD card uses the same HSPI bus as e-ink display and LoRa radio — CS pin management handles contention
+- Page content is pre-read from SD into a memory buffer during `handleInput()`, then rendered from buffer during `render()` — this avoids SPI bus conflicts during display refresh
+- Layout metrics (chars per line, lines per page) are calculated dynamically from the display driver's font metrics on first entry
+- EPUB conversion runs synchronously in `openBook()` — the e-ink splash screen keeps the user informed while the ESP32 processes the archive
+- ZIP extraction uses the ESP32-S3's hardware-optimised ROM `tinfl` inflate, avoiding external compression library dependencies and the linker conflicts they cause

Web App Guide.md

@@ -0,0 +1,181 @@
+# Web Reader & IRC - Meck v0.9.5
+
+Press **B** from the home screen to open the web reader. The web reader is
+available on the BLE and 4G variants. It is excluded from the standalone audio
+variant to preserve zero-radio-power design.
+
+The web reader home screen provides access to the **IRC client**, the **URL
+bar**, your **bookmarks**, and browsing **history**. Use **W / S** to navigate
+the list and **Enter** to select an item.
+
+## Web Browser
+
+A text-centric web browser ("reader mode") that fetches pages over WiFi,
+strips HTML to readable text, extracts links as numbered references, and
+paginates content for the e-ink display. Still very much in development, but
+already useful for text-heavy websites.
+
+Includes basic web search via **DuckDuckGo Lite** — type a search query into
+the URL bar and it will be sent to DuckDuckGo.
+
+### EPUB Downloads
+
+If you follow a link to an `.epub` file, it will be saved directly to the
+`/books/` folder on your SD card. You can then read it in the e-book reader
+(press **E** from the home screen).
+
+### Bookmarks
+
+Press **K** while on a page to save a bookmark. Bookmarks appear on the web
+reader home screen below the URL bar. To delete a bookmark, open the browser
+home screen, scroll down to the bookmark, and press **Delete**.
+
+### Cookies & History
+
+Press **X** to clear cookies and browsing history.
+
+---
+
+## IRC Client
+
+The IRC client lets you connect to IRC networks directly from the device. It
+is accessed from the web reader home screen — select **IRC Chat** (the first
+item) and press **Enter**.
+
+If you are not currently connected, the IRC setup screen opens where you can
+configure the server, port, nickname, and channel. If you are already
+connected, you go straight to the chat view.
+
+### IRC Setup
+
+The setup screen has five fields. Use **W / S** to navigate between them and
+press **Enter** to edit a field (type the value, then **Enter** to confirm).
+
+| Field | Description | Default |
+|-------|-------------|---------|
+| Host | IRC server hostname (e.g. `irc.libera.chat`) | — |
+| Port | Server port. Use `6697` for TLS or `6667` for plain | 6697 |
+| Nick | Your IRC nickname (max 16 characters) | — |
+| Channel | Channel to join, including the `#` (e.g. `#meshcore`) | — |
+| Connect | Select and press Enter to connect | — |
+
+TLS is used automatically when the port is 6697. Other ports connect without
+encryption.
+
+Configuration is saved to the SD card at `/web/irc.cfg` and restored on next
+launch, so you only need to enter server details once.
+
+If WiFi is not connected when you press Connect, you'll be taken to the WiFi
+setup screen first.
+
+### IRC Chat View
+
+Once connected and joined to the channel, you'll see messages in a scrollable
+chat view. The channel name and connection status are shown at the top.
+
+| Key | Action |
+|-----|--------|
+| Enter | Start composing a message (type, then Enter to send) |
+| Backspace | Delete last character while composing; exit compose if empty |
+| W / S | Scroll up (older) / down (newer) through messages |
+| X | Disconnect from IRC and return to web reader home |
+| Q | Return to web reader home (connection stays alive in background) |
+
+The IRC connection remains active when you press **Q** to go back to the web
+reader home screen. You'll see the connection status and channel name displayed
+on the IRC Chat line. Select it and press Enter to return to the chat. Press
+**X** from the chat view to disconnect.
+
+The client automatically reconnects if the connection drops (10-second delay
+between attempts) and detects dead connections after 5 minutes of inactivity
+via ping timeout.
+
+Messages are stored in a circular buffer of 64 messages. Older messages are
+discarded as new ones arrive.
+
+---
+
+## Key Bindings
+
+### From Home Screen
+| Key | Action |
+|-----|--------|
+| `b` | Open web reader |
+
+### Web Reader - Home View
+| Key | Action |
+|-----|--------|
+| `w` / `s` | Navigate up/down in IRC / URL bar / bookmarks / history |
+| `Enter` | Select IRC Chat, activate URL bar, or open bookmark/history item |
+| Type | Enter URL (when URL bar is active) |
+| `q` | Exit to firmware home |
+
+### Web Reader - Reading View
+| Key | Action |
+|-----|--------|
+| `w` / `a` | Previous page |
+| `s` / `d` / `Space` | Next page |
+| `l` or `Enter` | Enter link selection (type link number) |
+| `g` | Go to new URL (return to web reader home) |
+| `k` | Bookmark current page |
+| `x` | Clear cookies and history |
+| `q` | Back to web reader home |
+
+### Web Reader - WiFi Setup
+| Key | Action |
+|-----|--------|
+| `w` / `s` | Navigate SSID list |
+| `Enter` | Select SSID / submit password / retry |
+| Type | Enter WiFi password |
+| `q` | Back |
+
+### IRC - Setup View
+| Key | Action |
+|-----|--------|
+| `w` / `s` | Navigate fields (Host / Port / Nick / Channel / Connect) |
+| `Enter` | Edit selected field, or connect (when on Connect button) |
+| Type | Enter field value (when editing) |
+| `Backspace` | Delete last character (when editing) |
+| `q` | Back to web reader home |
+
+### IRC - Chat View
+| Key | Action |
+|-----|--------|
+| `Enter` | Start composing / send message |
+| `Backspace` | Delete character / exit compose if empty |
+| `w` / `s` | Scroll older / newer messages |
+| `x` | Disconnect and return to web reader home |
+| `q` | Back to web reader home (stays connected) |
+
+---
+
+## WiFi
+
+The web reader and IRC client both use WiFi for network access. On first use,
+you'll be taken to the WiFi setup screen to scan for networks and enter a
+password. Credentials are saved to `/web/wifi.cfg` on the SD card and used for
+auto-reconnect on subsequent launches.
+
+On the 4G variant, the web reader currently uses WiFi. A future update will add
+PPP support via the A7682E cellular modem, allowing the browser and IRC to work
+over cellular data without WiFi.
+
+---
+
+## SD Card Structure
+```
+/web/
+  wifi.cfg         - Saved WiFi credentials (auto-reconnect)
+  bookmarks.txt    - One URL per line
+  history.txt      - Recent URLs, newest first
+  irc.cfg          - IRC server/port/nick/channel config
+```
+
+---
+
+## Conditional Compilation
+All web reader code is wrapped in `#ifdef MECK_WEB_READER` guards. The flag is set:
+- **meck_audio_ble**: Yes (`-D MECK_WEB_READER=1`) — WiFi available via BLE radio stack
+- **meck_4g_ble**: Yes (`-D MECK_WEB_READER=1`) — WiFi now, PPP via A7682E in future
+- **meck_4g_standalone**: Yes (`-D MECK_WEB_READER=1`) — WiFi works better without BLE (no teardown needed, more free heap)
+- **meck_audio_standalone**: No — excluded to preserve zero-radio-power design

examples/companion_radio/AbstractUITask.h

@@ -40,7 +40,19 @@ public:
   void enableSerial() { _serial->enable(); }
   void disableSerial() { _serial->disable(); }
   virtual void msgRead(int msgcount) = 0;
-  virtual void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount) = 0;
+  virtual void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount,
+                      const uint8_t* path = nullptr) = 0;
   virtual void notify(UIEventType t = UIEventType::none) = 0;
   virtual void loop() = 0;
-};
+  virtual void showAlert(const char* text, int duration_millis) {}
+  virtual void forceRefresh() {}
+  virtual void addSentChannelMessage(uint8_t channel_idx, const char* sender, const char* text) {}
+
+  // Mark a channel as read when BLE companion app syncs a message
+  virtual void markChannelReadFromBLE(uint8_t channel_idx) {}
+
+  // Repeater admin callbacks (from MyMesh)
+  virtual void onAdminLoginResult(bool success, uint8_t permissions, uint32_t server_time) {}
+  virtual void onAdminCliResponse(const char* from_name, const char* text) {}
+  virtual void onAdminTelemetryResult(const uint8_t* data, uint8_t len) {}
+};

examples/companion_radio/DataStore.cpp

@@ -228,6 +228,7 @@ void DataStore::loadPrefsInt(const char *filename, NodePrefs& _prefs, double& no
     file.read((uint8_t *)&_prefs.gps_enabled, sizeof(_prefs.gps_enabled));                 // 85
     file.read((uint8_t *)&_prefs.gps_interval, sizeof(_prefs.gps_interval));               // 86
     file.read((uint8_t *)&_prefs.autoadd_config, sizeof(_prefs.autoadd_config));           // 87
+    file.read((uint8_t *)&_prefs.utc_offset_hours, sizeof(_prefs.utc_offset_hours));       // 88
 
     file.close();
   }
@@ -263,6 +264,7 @@ void DataStore::savePrefs(const NodePrefs& _prefs, double node_lat, double node_
     file.write((uint8_t *)&_prefs.gps_enabled, sizeof(_prefs.gps_enabled));                 // 85
     file.write((uint8_t *)&_prefs.gps_interval, sizeof(_prefs.gps_interval));               // 86
     file.write((uint8_t *)&_prefs.autoadd_config, sizeof(_prefs.autoadd_config));           // 87
+    file.write((uint8_t *)&_prefs.utc_offset_hours, sizeof(_prefs.utc_offset_hours));     // 88
 
     file.close();
   }
@@ -598,4 +600,4 @@ bool DataStore::putBlobByKey(const uint8_t key[], int key_len, const uint8_t src
   }
   return false; // error
 }
-#endif
+#endif

examples/companion_radio/MyMesh.cpp

@@ -439,16 +439,45 @@ void MyMesh::queueMessage(const ContactInfo &from, uint8_t txt_type, mesh::Packe
   // we only want to show text messages on display, not cli data
   bool should_display = txt_type == TXT_TYPE_PLAIN || txt_type == TXT_TYPE_SIGNED_PLAIN;
   if (should_display && _ui) {
-    _ui->newMsg(path_len, from.name, text, offline_queue_len);
+    const uint8_t* msg_path = (pkt->isRouteFlood() && pkt->path_len > 0) ? pkt->path : nullptr;
+    _ui->newMsg(path_len, from.name, text, offline_queue_len, msg_path);
     if (!_prefs.buzzer_quiet) _ui->notify(UIEventType::contactMessage); //buzz if enabled
   }
 #endif
 }
 
 bool MyMesh::filterRecvFloodPacket(mesh::Packet* packet) {
-  // REVISIT: try to determine which Region (from transport_codes[1]) that Sender is indicating for replies/responses
-  //    if unknown, fallback to finding Region from transport_codes[0], the 'scope' used by Sender
-  return false;
+  // Check if this incoming flood packet is a repeat of a message we recently sent
+  if (packet->payload_len >= SENT_FINGERPRINT_SIZE) {
+    unsigned long now = millis();
+    for (int i = 0; i < SENT_TRACK_SIZE; i++) {
+      SentMsgTrack* t = &_sent_track[i];
+      if (!t->active) continue;
+
+      // Expire old entries
+      if ((now - t->sent_millis) > SENT_TRACK_EXPIRY_MS) {
+        t->active = false;
+        continue;
+      }
+
+      // Compare payload fingerprint
+      if (memcmp(packet->payload, t->fingerprint, SENT_FINGERPRINT_SIZE) == 0) {
+        t->repeat_count++;
+        MESH_DEBUG_PRINTLN("SentTrack: heard repeat #%d (SNR=%.1f)", t->repeat_count, packet->getSNR());
+        
+#ifdef DISPLAY_CLASS
+        if (_ui) {
+          char buf[40];
+          snprintf(buf, sizeof(buf), "Sent! (%d)", t->repeat_count);
+          _ui->showAlert(buf, 2000);  // show/extend alert with updated count
+        }
+#endif
+        break;  // found match, no need to check other entries
+      }
+    }
+  }
+
+  return false;  // never filter — let normal processing continue
 }
 
 void MyMesh::sendFloodScoped(const ContactInfo& recipient, mesh::Packet* pkt, uint32_t delay_millis) {
@@ -463,6 +492,17 @@ void MyMesh::sendFloodScoped(const ContactInfo& recipient, mesh::Packet* pkt, ui
   }
 }
 void MyMesh::sendFloodScoped(const mesh::GroupChannel& channel, mesh::Packet* pkt, uint32_t delay_millis) {
+  // Capture payload fingerprint for repeat tracking before sending
+  if (pkt->payload_len >= SENT_FINGERPRINT_SIZE) {
+    SentMsgTrack* t = &_sent_track[_sent_track_idx];
+    memcpy(t->fingerprint, pkt->payload, SENT_FINGERPRINT_SIZE);
+    t->repeat_count = 0;
+    t->sent_millis = millis();
+    t->active = true;
+    _sent_track_idx = (_sent_track_idx + 1) % SENT_TRACK_SIZE;
+    MESH_DEBUG_PRINTLN("SentTrack: captured fingerprint for channel msg");
+  }
+
   // TODO: have per-channel send_scope
   if (send_scope.isNull()) {
     sendFlood(pkt, delay_millis);
@@ -484,6 +524,13 @@ void MyMesh::onCommandDataRecv(const ContactInfo &from, mesh::Packet *pkt, uint3
                                const char *text) {
   markConnectionActive(from); // in case this is from a server, and we have a connection
   queueMessage(from, TXT_TYPE_CLI_DATA, pkt, sender_timestamp, NULL, 0, text);
+
+  // Forward CLI response to UI admin screen if admin session is active
+#ifdef DISPLAY_CLASS
+  if (_admin_contact_idx >= 0 && _ui) {
+    _ui->onAdminCliResponse(from.name, text);
+  }
+#endif
 }
 
 void MyMesh::onSignedMessageRecv(const ContactInfo &from, mesh::Packet *pkt, uint32_t sender_timestamp,
@@ -535,12 +582,153 @@ void MyMesh::onChannelMessageRecv(const mesh::GroupChannel &channel, mesh::Packe
     channel_name = channel_details.name;
   }
   if (_ui) {
-    _ui->newMsg(path_len, channel_name, text, offline_queue_len);
+    const uint8_t* msg_path = (pkt->isRouteFlood() && pkt->path_len > 0) ? pkt->path : nullptr;
+    _ui->newMsg(path_len, channel_name, text, offline_queue_len, msg_path);
     if (!_prefs.buzzer_quiet) _ui->notify(UIEventType::channelMessage); //buzz if enabled
   }
 #endif
 }
 
+void MyMesh::queueSentChannelMessage(uint8_t channel_idx, uint32_t timestamp, const char* sender, const char* text) {
+  // Format message the same way as onChannelMessageRecv for BLE app sync
+  // This allows sent messages from device keyboard to appear in the app
+  int i = 0;
+  if (app_target_ver >= 3) {
+    out_frame[i++] = RESP_CODE_CHANNEL_MSG_RECV_V3;
+    out_frame[i++] = 0;  // SNR not applicable for sent messages
+    out_frame[i++] = 0;  // reserved1
+    out_frame[i++] = 0;  // reserved2
+  } else {
+    out_frame[i++] = RESP_CODE_CHANNEL_MSG_RECV;
+  }
+
+  out_frame[i++] = channel_idx;
+  out_frame[i++] = 0;  // path_len = 0 indicates local/sent message
+
+  out_frame[i++] = TXT_TYPE_PLAIN;
+  memcpy(&out_frame[i], &timestamp, 4);
+  i += 4;
+  
+  // Format as "sender: text" like the app expects
+  char formatted[MAX_FRAME_SIZE];
+  snprintf(formatted, sizeof(formatted), "%s: %s", sender, text);
+  int tlen = strlen(formatted);
+  if (i + tlen > MAX_FRAME_SIZE) {
+    tlen = MAX_FRAME_SIZE - i;
+  }
+  memcpy(&out_frame[i], formatted, tlen);
+  i += tlen;
+  
+  addToOfflineQueue(out_frame, i);
+
+  // If app is connected, send push notification
+  if (_serial->isConnected()) {
+    uint8_t frame[1];
+    frame[0] = PUSH_CODE_MSG_WAITING;
+    _serial->writeFrame(frame, 1);
+  }
+}
+
+bool MyMesh::uiSendDirectMessage(uint32_t contact_idx, const char* text) {
+  ContactInfo contact;
+  if (!getContactByIdx(contact_idx, contact)) return false;
+
+  ContactInfo* recipient = lookupContactByPubKey(contact.id.pub_key, PUB_KEY_SIZE);
+  if (!recipient) return false;
+
+  uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
+  uint32_t expected_ack, est_timeout;
+  int result = sendMessage(*recipient, timestamp, 0, text, expected_ack, est_timeout);
+
+  if (result == MSG_SEND_FAILED) {
+    MESH_DEBUG_PRINTLN("UI: DM send failed to %s", recipient->name);
+    return false;
+  }
+
+  // Track expected ACK for delivery confirmation
+  if (expected_ack) {
+    expected_ack_table[next_ack_idx].msg_sent = _ms->getMillis();
+    expected_ack_table[next_ack_idx].ack = expected_ack;
+    expected_ack_table[next_ack_idx].contact = recipient;
+    next_ack_idx = (next_ack_idx + 1) % EXPECTED_ACK_TABLE_SIZE;
+  }
+
+  MESH_DEBUG_PRINTLN("UI: DM sent to %s (%s), ack=0x%08X timeout=%dms",
+                     recipient->name, result == MSG_SEND_SENT_FLOOD ? "flood" : "direct",
+                     expected_ack, est_timeout);
+  return true;
+}
+
+bool MyMesh::uiLoginToRepeater(uint32_t contact_idx, const char* password) {
+  ContactInfo contact;
+  if (!getContactByIdx(contact_idx, contact)) return false;
+
+  ContactInfo* recipient = lookupContactByPubKey(contact.id.pub_key, PUB_KEY_SIZE);
+  if (!recipient) return false;
+
+  uint32_t est_timeout;
+  int result = sendLogin(*recipient, password, est_timeout);
+  if (result == MSG_SEND_FAILED) {
+    MESH_DEBUG_PRINTLN("UI: Admin login send failed to %s", recipient->name);
+    return false;
+  }
+
+  clearPendingReqs();
+  memcpy(&pending_login, recipient->id.pub_key, 4);
+  _admin_contact_idx = contact_idx;
+
+  MESH_DEBUG_PRINTLN("UI: Admin login sent to %s (%s), timeout=%dms",
+                     recipient->name, result == MSG_SEND_SENT_FLOOD ? "flood" : "direct",
+                     est_timeout);
+  return true;
+}
+
+bool MyMesh::uiSendCliCommand(uint32_t contact_idx, const char* command) {
+  ContactInfo contact;
+  if (!getContactByIdx(contact_idx, contact)) return false;
+
+  ContactInfo* recipient = lookupContactByPubKey(contact.id.pub_key, PUB_KEY_SIZE);
+  if (!recipient) return false;
+
+  uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
+  uint32_t est_timeout;
+  int result = sendCommandData(*recipient, timestamp, 0, command, est_timeout);
+  if (result == MSG_SEND_FAILED) {
+    MESH_DEBUG_PRINTLN("UI: CLI command send failed to %s: %s", recipient->name, command);
+    return false;
+  }
+
+  _admin_contact_idx = contact_idx;
+
+  MESH_DEBUG_PRINTLN("UI: CLI command sent to %s (%s): %s, timeout=%dms",
+                     recipient->name, result == MSG_SEND_SENT_FLOOD ? "flood" : "direct",
+                     command, est_timeout);
+  return true;
+}
+
+bool MyMesh::uiSendTelemetryRequest(uint32_t contact_idx) {
+  ContactInfo contact;
+  if (!getContactByIdx(contact_idx, contact)) return false;
+
+  ContactInfo* recipient = lookupContactByPubKey(contact.id.pub_key, PUB_KEY_SIZE);
+  if (!recipient) return false;
+
+  uint32_t tag, est_timeout;
+  int result = sendRequest(*recipient, REQ_TYPE_GET_TELEMETRY_DATA, tag, est_timeout);
+  if (result == MSG_SEND_FAILED) {
+    MESH_DEBUG_PRINTLN("UI: Telemetry request send failed to %s", recipient->name);
+    return false;
+  }
+
+  clearPendingReqs();
+  pending_telemetry = tag;
+
+  MESH_DEBUG_PRINTLN("UI: Telemetry request sent to %s (%s), timeout=%dms",
+                     recipient->name, result == MSG_SEND_SENT_FLOOD ? "flood" : "direct",
+                     est_timeout);
+  return true;
+}
+
 uint8_t MyMesh::onContactRequest(const ContactInfo &contact, uint32_t sender_timestamp, const uint8_t *data,
                                  uint8_t len, uint8_t *reply) {
   if (data[0] == REQ_TYPE_GET_TELEMETRY_DATA) {
@@ -599,6 +787,11 @@ void MyMesh::onContactResponse(const ContactInfo &contact, const uint8_t *data,
       out_frame[i++] = 0; // legacy: is_admin = false
       memcpy(&out_frame[i], contact.id.pub_key, 6);
       i += 6;                                     // pub_key_prefix
+
+      #ifdef DISPLAY_CLASS
+      // Notify UI of successful legacy login
+      if (_ui) _ui->onAdminLoginResult(true, 0, tag);
+      #endif
     } else if (data[4] == RESP_SERVER_LOGIN_OK) { // new login response
       uint16_t keep_alive_secs = ((uint16_t)data[5]) * 16;
       if (keep_alive_secs > 0) {
@@ -612,11 +805,21 @@ void MyMesh::onContactResponse(const ContactInfo &contact, const uint8_t *data,
       i += 4; // NEW: include server timestamp
       out_frame[i++] = data[7]; // NEW (v7): ACL permissions
       out_frame[i++] = data[12]; // FIRMWARE_VER_LEVEL
+
+      #ifdef DISPLAY_CLASS
+      // Notify UI of successful login
+      if (_ui) _ui->onAdminLoginResult(true, data[6], tag);
+      #endif
     } else {
       out_frame[i++] = PUSH_CODE_LOGIN_FAIL;
       out_frame[i++] = 0; // reserved
       memcpy(&out_frame[i], contact.id.pub_key, 6);
       i += 6; // pub_key_prefix
+
+      #ifdef DISPLAY_CLASS
+      // Notify UI of login failure
+      if (_ui) _ui->onAdminLoginResult(false, 0, 0);
+      #endif
     }
     _serial->writeFrame(out_frame, i);
   } else if (len > 4 && // check for status response
@@ -636,6 +839,7 @@ void MyMesh::onContactResponse(const ContactInfo &contact, const uint8_t *data,
     _serial->writeFrame(out_frame, i);
   } else if (len > 4 && tag == pending_telemetry) {  // check for matching response tag
     pending_telemetry = 0;
+    MESH_DEBUG_PRINTLN("Telemetry response received from %s, len=%d", contact.name, len);
 
     int i = 0;
     out_frame[i++] = PUSH_CODE_TELEMETRY_RESPONSE;
@@ -645,6 +849,11 @@ void MyMesh::onContactResponse(const ContactInfo &contact, const uint8_t *data,
     memcpy(&out_frame[i], &data[4], len - 4);
     i += (len - 4);
     _serial->writeFrame(out_frame, i);
+
+    #ifdef DISPLAY_CLASS
+    // Route telemetry data to UI (LPP buffer after the 4-byte tag)
+    if (_ui) _ui->onAdminTelemetryResult(&data[4], len - 4);
+    #endif
   } else if (len > 4 && tag == pending_req) {  // check for matching response tag
     pending_req = 0;
 
@@ -786,6 +995,9 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
   dirty_contacts_expiry = 0;
   memset(advert_paths, 0, sizeof(advert_paths));
   memset(send_scope.key, 0, sizeof(send_scope.key));
+  memset(_sent_track, 0, sizeof(_sent_track));
+  _sent_track_idx = 0;
+  _admin_contact_idx = -1;
 
   // defaults
   memset(&_prefs, 0, sizeof(_prefs));
@@ -839,6 +1051,7 @@ void MyMesh::begin(bool has_display) {
   _prefs.buzzer_quiet = constrain(_prefs.buzzer_quiet, 0, 1);  // Ensure boolean 0 or 1
   _prefs.gps_enabled = constrain(_prefs.gps_enabled, 0, 1);  // Ensure boolean 0 or 1
   _prefs.gps_interval = constrain(_prefs.gps_interval, 0, 86400);  // Max 24 hours
+  _prefs.utc_offset_hours = constrain(_prefs.utc_offset_hours, -12, 14);  // Valid timezone range
 
 #ifdef BLE_PIN_CODE // 123456 by default
   if (_prefs.ble_pin == 0) {
@@ -859,6 +1072,7 @@ void MyMesh::begin(bool has_display) {
   _active_ble_pin = 0;
 #endif
 
+  initContacts();    // allocate contacts array from PSRAM (deferred from constructor)
   resetContacts();
   _store->loadContacts(this);
   bootstrapRTCfromContacts();
@@ -999,6 +1213,8 @@ void MyMesh::handleCmdFrame(size_t len) {
     memcpy(&msg_timestamp, &cmd_frame[i], 4);
     i += 4;
     const char *text = (char *)&cmd_frame[i];
+    int text_len = len - i;
+    cmd_frame[len] = '\0';  // Null-terminate for C string use
 
     if (txt_type != TXT_TYPE_PLAIN) {
       writeErrFrame(ERR_CODE_UNSUPPORTED_CMD);
@@ -1007,6 +1223,11 @@ void MyMesh::handleCmdFrame(size_t len) {
       bool success = getChannel(channel_idx, channel);
       if (success && sendGroupMessage(msg_timestamp, channel.channel, _prefs.node_name, text, len - i)) {
         writeOKFrame();
+        #ifdef DISPLAY_CLASS
+        if (_ui) {
+          _ui->addSentChannelMessage(channel_idx, _prefs.node_name, text);
+        }
+#endif
       } else {
         writeErrFrame(ERR_CODE_NOT_FOUND); // bad channel_idx
       }
@@ -1189,7 +1410,19 @@ void MyMesh::handleCmdFrame(size_t len) {
     if ((out_len = getFromOfflineQueue(out_frame)) > 0) {
       _serial->writeFrame(out_frame, out_len);
 #ifdef DISPLAY_CLASS
-      if (_ui) _ui->msgRead(offline_queue_len);
+      if (_ui) {
+        _ui->msgRead(offline_queue_len);
+
+        // Mark channel as read when BLE companion app syncs the message.
+        // Frame layout V3: [resp_code][snr][res1][res2][channel_idx][path_len]...
+        // Frame layout V1: [resp_code][channel_idx][path_len]...
+        bool is_v3_ch = (out_frame[0] == RESP_CODE_CHANNEL_MSG_RECV_V3);
+        bool is_old_ch = (out_frame[0] == RESP_CODE_CHANNEL_MSG_RECV);
+        if (is_v3_ch || is_old_ch) {
+          uint8_t ch_idx = is_v3_ch ? out_frame[4] : out_frame[1];
+          _ui->markChannelReadFromBLE(ch_idx);
+        }
+      }
 #endif
     } else {
       out_frame[0] = RESP_CODE_NO_MORE_MESSAGES;
@@ -1622,6 +1855,12 @@ void MyMesh::handleCmdFrame(size_t len) {
           savePrefs();
         }
         #endif
+        // UTC offset for local clock display (works regardless of GPS)
+        if (strcmp(sp, "utc_offset") == 0) {
+          int offset = atoi(np);
+          _prefs.utc_offset_hours = constrain(offset, -12, 14);
+          savePrefs();
+        }
         writeOKFrame();
       } else {
         writeErrFrame(ERR_CODE_ILLEGAL_ARG);
@@ -1979,4 +2218,4 @@ bool MyMesh::advert() {
   } else {
     return false;
   }
-}
+}

examples/companion_radio/MyMesh.h

@@ -8,11 +8,11 @@
 #define FIRMWARE_VER_CODE 8
 
 #ifndef FIRMWARE_BUILD_DATE
-#define FIRMWARE_BUILD_DATE "28 Jan 2026"
+#define FIRMWARE_BUILD_DATE "27 Feb 2026"
 #endif
 
 #ifndef FIRMWARE_VERSION
-#define FIRMWARE_VERSION "Meck v0.3"
+#define FIRMWARE_VERSION "Meck v0.9.5"
 #endif
 
 #if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
@@ -101,6 +101,19 @@ public:
   void enterCLIRescue();
 
   int  getRecentlyHeard(AdvertPath dest[], int max_num);
+  
+  // Queue a sent channel message for BLE app sync
+  void queueSentChannelMessage(uint8_t channel_idx, uint32_t timestamp, const char* sender, const char* text);
+
+  // Send a direct message from the UI (no BLE dependency)
+  bool uiSendDirectMessage(uint32_t contact_idx, const char* text);
+
+  // Repeater admin - UI-initiated operations
+  bool uiLoginToRepeater(uint32_t contact_idx, const char* password);
+  bool uiSendCliCommand(uint32_t contact_idx, const char* command);
+  bool uiSendTelemetryRequest(uint32_t contact_idx);
+  int  getAdminContactIdx() const { return _admin_contact_idx; }
+
 
 protected:
   float getAirtimeBudgetFactor() const override;
@@ -158,6 +171,12 @@ protected:
 
 public:
   void savePrefs() { _store->savePrefs(_prefs, sensors.node_lat, sensors.node_lon); }
+  void saveChannels() {
+    _store->saveChannels(this);
+  }
+  void saveContacts() {
+    _store->saveContacts(this);
+  }
 
 private:
   void writeOKFrame();
@@ -177,10 +196,6 @@ private:
   void checkCLIRescueCmd();
   void checkSerialInterface();
 
-  // helpers, short-cuts
-  void saveChannels() { _store->saveChannels(this); }
-  void saveContacts() { _store->saveContacts(this); }
-
   DataStore* _store;
   NodePrefs _prefs;
   uint32_t pending_login;
@@ -228,6 +243,20 @@ private:
 
   #define ADVERT_PATH_TABLE_SIZE   16
   AdvertPath advert_paths[ADVERT_PATH_TABLE_SIZE]; // circular table
+
+    // Sent message repeat tracking
+  #define SENT_TRACK_SIZE          4
+  #define SENT_FINGERPRINT_SIZE    12
+  #define SENT_TRACK_EXPIRY_MS     30000  // stop tracking after 30 seconds
+  struct SentMsgTrack {
+    uint8_t fingerprint[SENT_FINGERPRINT_SIZE];
+    uint8_t repeat_count;
+    unsigned long sent_millis;
+    bool active;
+  };
+  SentMsgTrack _sent_track[SENT_TRACK_SIZE];
+  int _sent_track_idx;  // next slot in circular buffer
+  int _admin_contact_idx;  // contact index for active admin session (-1 if none)
 };
 
-extern MyMesh the_mesh;
+extern MyMesh the_mesh;

examples/companion_radio/NodePrefs.h

@@ -28,4 +28,6 @@ struct NodePrefs {  // persisted to file
   uint8_t  gps_enabled;      // GPS enabled flag (0=disabled, 1=enabled)
   uint32_t gps_interval;     // GPS read interval in seconds
   uint8_t autoadd_config;    // bitmask for auto-add contacts config
+  int8_t  utc_offset_hours;  // UTC offset in hours (-12 to +14), default 0
+  uint8_t kb_flash_notify;   // Keyboard backlight flash on new message (0=off, 1=on)
 };

examples/companion_radio/ui-new/ApnDatabase.h

@@ -0,0 +1,372 @@
+#pragma once
+
+// =============================================================================
+// ApnDatabase.h - Embedded APN Lookup Table
+//
+// Maps MCC/MNC (Mobile Country Code / Mobile Network Code) to default APN
+// settings for common carriers worldwide. Compiled directly into flash (~3KB)
+// so users never need to manually install a lookup file.
+//
+// The modem queries IMSI via AT+CIMI to extract MCC (3 digits) + MNC (2-3
+// digits), then looks up the APN here. If not found, falls back to the
+// modem's existing PDP context (AT+CGDCONT?) or user-configured APN.
+//
+// To add a carrier: append to APN_DATABASE[] with the MCC+MNC as a single
+// integer.  MNC can be 2 or 3 digits:
+//   MCC=310, MNC=260  → mccmnc = 310260
+//   MCC=505, MNC=01   → mccmnc = 50501
+//
+// Guard: HAS_4G_MODEM
+// =============================================================================
+
+#ifdef HAS_4G_MODEM
+
+#ifndef APN_DATABASE_H
+#define APN_DATABASE_H
+
+struct ApnEntry {
+  uint32_t mccmnc;        // MCC+MNC as integer (e.g. 310260 for T-Mobile US)
+  const char* apn;        // APN string
+  const char* carrier;    // Human-readable carrier name (for debug/display)
+};
+
+// ---------------------------------------------------------------------------
+// APN Database — sorted by MCC for binary search potential (not required)
+//
+// Sources: carrier documentation, GSMA databases, community wikis.
+// This covers ~120 major carriers across key regions. Users with less
+// common carriers can set APN manually in Settings.
+// ---------------------------------------------------------------------------
+
+static const ApnEntry APN_DATABASE[] = {
+  // =========================================================================
+  // Australia (MCC 505)
+  // =========================================================================
+  { 50501,  "telstra.internet",    "Telstra" },
+  { 50502,  "yesinternet",         "Optus" },
+  { 50503,  "vfinternet.au",       "Vodafone AU" },
+  { 50506,  "3netaccess",          "Three AU" },
+  { 50507,  "telstra.internet",    "Vodafone AU (MVNO)" },  // Many MVNOs on Telstra
+  { 50510,  "telstra.internet",    "Norfolk Tel" },
+  { 50512,  "3netaccess",          "Amaysim" },              // Optus MVNO
+  { 50514,  "yesinternet",         "Aussie Broadband" },     // Optus MVNO
+  { 50590,  "yesinternet",         "Optus MVNO" },
+
+  // =========================================================================
+  // New Zealand (MCC 530)
+  // =========================================================================
+  { 53001,  "internet",            "Vodafone NZ" },
+  { 53005,  "internet",            "Spark NZ" },
+  { 53024,  "internet",            "2degrees" },
+
+  // =========================================================================
+  // United States (MCC 310, 311, 312, 313, 316)
+  // =========================================================================
+  { 310012, "fast.t-mobile.com",   "Verizon (old)" },
+  { 310026, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310030, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310032, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310060, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310160, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310200, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310210, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310220, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310230, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310240, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310250, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310260, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310270, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310310, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310490, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310530, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310580, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310660, "fast.t-mobile.com",   "T-Mobile US" },
+  { 310800, "fast.t-mobile.com",   "T-Mobile US" },
+  { 311480, "vzwinternet",         "Verizon" },
+  { 311481, "vzwinternet",         "Verizon" },
+  { 311482, "vzwinternet",         "Verizon" },
+  { 311483, "vzwinternet",         "Verizon" },
+  { 311484, "vzwinternet",         "Verizon" },
+  { 311489, "vzwinternet",         "Verizon" },
+  { 310410, "fast.t-mobile.com",   "AT&T (migrated)" },
+  { 310120, "att.mvno",            "AT&T (Sprint)" },
+  { 312530, "iot.1nce.net",        "1NCE IoT" },
+  { 310120, "tfdata",              "Tracfone" },
+
+  // =========================================================================
+  // Canada (MCC 302)
+  // =========================================================================
+  { 30220,  "internet.com",        "Rogers" },
+  { 30221,  "internet.com",        "Rogers" },
+  { 30237,  "internet.com",        "Rogers" },
+  { 30272,  "internet.com",        "Rogers" },
+  { 30234,  "sp.telus.com",        "Telus" },
+  { 30286,  "sp.telus.com",        "Telus" },
+  { 30236,  "sp.telus.com",        "Telus" },
+  { 30261,  "sp.bell.ca",          "Bell" },
+  { 30263,  "sp.bell.ca",          "Bell" },
+  { 30267,  "sp.bell.ca",          "Bell" },
+  { 30268,  "fido-core-appl1.apn", "Fido" },
+  { 30278,  "internet.com",        "SaskTel" },
+  { 30266,  "sp.mb.com",           "MTS" },
+
+  // =========================================================================
+  // United Kingdom (MCC 234, 235)
+  // =========================================================================
+  { 23410,  "o2-internet",         "O2 UK" },
+  { 23415,  "three.co.uk",         "Vodafone UK" },
+  { 23420,  "three.co.uk",         "Three UK" },
+  { 23430,  "everywhere",          "EE" },
+  { 23431,  "everywhere",          "EE" },
+  { 23432,  "everywhere",          "EE" },
+  { 23433,  "everywhere",          "EE" },
+  { 23450,  "data.lycamobile.co.uk","Lycamobile UK" },
+  { 23486,  "three.co.uk",         "Three UK" },
+
+  // =========================================================================
+  // Germany (MCC 262)
+  // =========================================================================
+  { 26201,  "internet.t-mobile",   "Telekom DE" },
+  { 26202,  "web.vodafone.de",     "Vodafone DE" },
+  { 26203,  "internet",            "O2 DE" },
+  { 26207,  "internet",            "O2 DE" },
+
+  // =========================================================================
+  // France (MCC 208)
+  // =========================================================================
+  { 20801,  "orange",              "Orange FR" },
+  { 20810,  "sl2sfr",              "SFR" },
+  { 20815,  "free",                "Free Mobile" },
+  { 20820,  "ofnew.fr",            "Bouygues" },
+
+  // =========================================================================
+  // Italy (MCC 222)
+  // =========================================================================
+  { 22201,  "mobile.vodafone.it",  "TIM" },
+  { 22210,  "mobile.vodafone.it",  "Vodafone IT" },
+  { 22250,  "internet.it",         "Iliad IT" },
+  { 22288,  "internet.wind",       "WindTre" },
+  { 22299,  "internet.wind",       "WindTre" },
+
+  // =========================================================================
+  // Spain (MCC 214)
+  // =========================================================================
+  { 21401,  "internet",            "Vodafone ES" },
+  { 21403,  "internet",            "Orange ES" },
+  { 21404,  "internet",            "Yoigo" },
+  { 21407,  "internet",            "Movistar" },
+
+  // =========================================================================
+  // Netherlands (MCC 204)
+  // =========================================================================
+  { 20404,  "internet",            "Vodafone NL" },
+  { 20408,  "internet",            "KPN" },
+  { 20412,  "internet",            "Telfort" },
+  { 20416,  "internet",            "T-Mobile NL" },
+  { 20420,  "internet",            "T-Mobile NL" },
+
+  // =========================================================================
+  // Sweden (MCC 240)
+  // =========================================================================
+  { 24001,  "internet.telia.se",   "Telia SE" },
+  { 24002,  "tre.se",              "Three SE" },
+  { 24007,  "internet.telenor.se", "Telenor SE" },
+
+  // =========================================================================
+  // Norway (MCC 242)
+  // =========================================================================
+  { 24201,  "internet.telenor.no", "Telenor NO" },
+  { 24202,  "internet.netcom.no",  "Telia NO" },
+
+  // =========================================================================
+  // Denmark (MCC 238)
+  // =========================================================================
+  { 23801,  "internet",            "TDC" },
+  { 23802,  "internet",            "Telenor DK" },
+  { 23806,  "internet",            "Three DK" },
+  { 23820,  "internet",            "Telia DK" },
+
+  // =========================================================================
+  // Switzerland (MCC 228)
+  // =========================================================================
+  { 22801,  "gprs.swisscom.ch",    "Swisscom" },
+  { 22802,  "internet",            "Sunrise" },
+  { 22803,  "internet",            "Salt" },
+
+  // =========================================================================
+  // Austria (MCC 232)
+  // =========================================================================
+  { 23201,  "a1.net",              "A1" },
+  { 23203,  "web.one.at",          "Three AT" },
+  { 23205,  "web",                 "T-Mobile AT" },
+
+  // =========================================================================
+  // Japan (MCC 440, 441)
+  // =========================================================================
+  { 44010,  "spmode.ne.jp",        "NTT Docomo" },
+  { 44020,  "plus.4g",             "SoftBank" },
+  { 44051,  "au.au-net.ne.jp",     "KDDI au" },
+
+  // =========================================================================
+  // South Korea (MCC 450)
+  // =========================================================================
+  { 45005,  "lte.sktelecom.com",   "SK Telecom" },
+  { 45006,  "lte.ktfwing.com",     "KT" },
+  { 45008,  "lte.lguplus.co.kr",   "LG U+" },
+
+  // =========================================================================
+  // India (MCC 404, 405)
+  // =========================================================================
+  { 40445,  "airtelgprs.com",      "Airtel" },
+  { 40410,  "airtelgprs.com",      "Airtel" },
+  { 40411,  "www",                 "Vodafone IN (Vi)" },
+  { 40413,  "www",                 "Vodafone IN (Vi)" },
+  { 40486,  "www",                 "Vodafone IN (Vi)" },
+  { 40553,  "jionet",              "Jio" },
+  { 40554,  "jionet",              "Jio" },
+  { 40512,  "bsnlnet",             "BSNL" },
+
+  // =========================================================================
+  // Singapore (MCC 525)
+  // =========================================================================
+  { 52501,  "internet",            "Singtel" },
+  { 52503,  "internet",            "M1" },
+  { 52505,  "internet",            "StarHub" },
+
+  // =========================================================================
+  // Hong Kong (MCC 454)
+  // =========================================================================
+  { 45400,  "internet",            "CSL" },
+  { 45406,  "internet",            "SmarTone" },
+  { 45412,  "internet",            "CMHK" },
+
+  // =========================================================================
+  // Brazil (MCC 724)
+  // =========================================================================
+  { 72405,  "claro.com.br",        "Claro BR" },
+  { 72406,  "wap.oi.com.br",       "Vivo" },
+  { 72410,  "wap.oi.com.br",       "Vivo" },
+  { 72411,  "wap.oi.com.br",       "Vivo" },
+  { 72415,  "internet.tim.br",     "TIM BR" },
+  { 72431,  "gprs.oi.com.br",      "Oi" },
+
+  // =========================================================================
+  // Mexico (MCC 334)
+  // =========================================================================
+  { 33402,  "internet.itelcel.com","Telcel" },
+  { 33403,  "internet.movistar.mx","Movistar MX" },
+  { 33404,  "internet.att.net.mx", "AT&T MX" },
+
+  // =========================================================================
+  // South Africa (MCC 655)
+  // =========================================================================
+  { 65501,  "internet",            "Vodacom" },
+  { 65502,  "internet",            "Telkom ZA" },
+  { 65507,  "internet",            "Cell C" },
+  { 65510,  "internet",            "MTN ZA" },
+
+  // =========================================================================
+  // Philippines (MCC 515)
+  // =========================================================================
+  { 51502,  "internet.globe.com.ph","Globe" },
+  { 51503,  "internet",            "Smart" },
+  { 51505,  "internet",            "Sun Cellular" },
+
+  // =========================================================================
+  // Thailand (MCC 520)
+  // =========================================================================
+  { 52001,  "internet",            "AIS" },
+  { 52004,  "internet",            "TrueMove" },
+  { 52005,  "internet",            "dtac" },
+
+  // =========================================================================
+  // Indonesia (MCC 510)
+  // =========================================================================
+  { 51001,  "internet",            "Telkomsel" },
+  { 51010,  "internet",            "Telkomsel" },
+  { 51011,  "3gprs",               "XL Axiata" },
+  { 51028,  "3gprs",               "XL Axiata (Axis)" },
+
+  // =========================================================================
+  // Malaysia (MCC 502)
+  // =========================================================================
+  { 50212,  "celcom3g",            "Celcom" },
+  { 50213,  "celcom3g",            "Celcom" },
+  { 50216,  "internet",            "Digi" },
+  { 50219,  "celcom3g",            "Celcom" },
+
+  // =========================================================================
+  // Czech Republic (MCC 230)
+  // =========================================================================
+  { 23001,  "internet.t-mobile.cz","T-Mobile CZ" },
+  { 23002,  "internet",            "O2 CZ" },
+  { 23003,  "internet.vodafone.cz","Vodafone CZ" },
+
+  // =========================================================================
+  // Poland (MCC 260)
+  // =========================================================================
+  { 26001,  "internet",            "Plus PL" },
+  { 26002,  "internet",            "T-Mobile PL" },
+  { 26003,  "internet",            "Orange PL" },
+  { 26006,  "internet",            "Play" },
+
+  // =========================================================================
+  // Portugal (MCC 268)
+  // =========================================================================
+  { 26801,  "internet",            "Vodafone PT" },
+  { 26803,  "internet",            "NOS" },
+  { 26806,  "internet",            "MEO" },
+
+  // =========================================================================
+  // Ireland (MCC 272)
+  // =========================================================================
+  { 27201,  "internet",            "Vodafone IE" },
+  { 27202,  "open.internet",       "Three IE" },
+  { 27205,  "three.ie",            "Three IE" },
+
+  // =========================================================================
+  // IoT / Global SIMs
+  // =========================================================================
+  { 901028, "iot.1nce.net",        "1NCE (IoT)" },
+  { 90143,  "hologram",            "Hologram" },
+};
+
+#define APN_DATABASE_SIZE (sizeof(APN_DATABASE) / sizeof(APN_DATABASE[0]))
+
+// ---------------------------------------------------------------------------
+// Lookup function — returns nullptr if not found
+// ---------------------------------------------------------------------------
+
+inline const ApnEntry* apnLookup(uint32_t mccmnc) {
+  for (int i = 0; i < (int)APN_DATABASE_SIZE; i++) {
+    if (APN_DATABASE[i].mccmnc == mccmnc) {
+      return &APN_DATABASE[i];
+    }
+  }
+  return nullptr;
+}
+
+// Parse IMSI string into MCC+MNC.  Tries 3-digit MNC first (6-digit mccmnc),
+// falls back to 2-digit MNC (5-digit mccmnc) if not found.
+inline const ApnEntry* apnLookupFromIMSI(const char* imsi) {
+  if (!imsi || strlen(imsi) < 5) return nullptr;
+
+  // Extract MCC (always 3 digits)
+  uint32_t mcc = (imsi[0] - '0') * 100 + (imsi[1] - '0') * 10 + (imsi[2] - '0');
+
+  // Try 3-digit MNC first (more specific)
+  if (strlen(imsi) >= 6) {
+    uint32_t mnc3 = (imsi[3] - '0') * 100 + (imsi[4] - '0') * 10 + (imsi[5] - '0');
+    uint32_t mccmnc6 = mcc * 1000 + mnc3;
+    const ApnEntry* entry = apnLookup(mccmnc6);
+    if (entry) return entry;
+  }
+
+  // Fall back to 2-digit MNC
+  uint32_t mnc2 = (imsi[3] - '0') * 10 + (imsi[4] - '0');
+  uint32_t mccmnc5 = mcc * 100 + mnc2;
+  return apnLookup(mccmnc5);
+}
+
+#endif // APN_DATABASE_H
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/Contactsscreen.h

@@ -0,0 +1,359 @@
+#pragma once
+
+#include <helpers/ui/UIScreen.h>
+#include <helpers/ui/DisplayDriver.h>
+#include <MeshCore.h>
+
+// Forward declarations
+class UITask;
+class MyMesh;
+extern MyMesh the_mesh;
+
+class ContactsScreen : public UIScreen {
+public:
+  // Filter modes for contact type
+  enum FilterMode {
+    FILTER_ALL = 0,
+    FILTER_CHAT,       // Companions / Chat nodes
+    FILTER_REPEATER,
+    FILTER_ROOM,       // Room servers
+    FILTER_SENSOR,
+    FILTER_FAVOURITE,  // Contacts marked as favourite (any type)
+    FILTER_COUNT       // keep last
+  };
+
+private:
+  UITask* _task;
+  mesh::RTCClock* _rtc;
+
+  int _scrollPos;        // Index into filtered list (top visible row)
+  FilterMode _filter;    // Current filter mode
+
+  // Cached filtered contact indices for efficient scrolling
+  // We rebuild this on filter change or when entering the screen
+  // Arrays allocated in PSRAM when available (supports 1000+ contacts)
+  uint16_t* _filteredIdx;    // indices into contact table
+  uint32_t* _filteredTs;     // cached last_advert_timestamp for sorting
+  int _filteredCount;                  // how many contacts match current filter
+  bool _cacheValid;
+
+  // How many rows fit on screen (computed during render)
+  int _rowsPerPage;
+
+  // --- helpers ---
+
+  static const char* filterLabel(FilterMode f) {
+    switch (f) {
+      case FILTER_ALL:       return "All";
+      case FILTER_CHAT:      return "Chat";
+      case FILTER_REPEATER:  return "Rptr";
+      case FILTER_ROOM:      return "Room";
+      case FILTER_SENSOR:    return "Sens";
+      case FILTER_FAVOURITE: return "Fav";
+      default:               return "?";
+    }
+  }
+
+  static char typeChar(uint8_t adv_type) {
+    switch (adv_type) {
+      case ADV_TYPE_CHAT:     return 'C';
+      case ADV_TYPE_REPEATER: return 'R';
+      case ADV_TYPE_ROOM:     return 'S';  // Server
+      default:                return '?';
+    }
+  }
+
+  bool matchesFilter(uint8_t adv_type, uint8_t flags = 0) const {
+    switch (_filter) {
+      case FILTER_ALL:       return true;
+      case FILTER_CHAT:      return adv_type == ADV_TYPE_CHAT;
+      case FILTER_REPEATER:  return adv_type == ADV_TYPE_REPEATER;
+      case FILTER_ROOM:      return adv_type == ADV_TYPE_ROOM;
+      case FILTER_SENSOR:    return (adv_type != ADV_TYPE_CHAT &&
+                                     adv_type != ADV_TYPE_REPEATER &&
+                                     adv_type != ADV_TYPE_ROOM);
+      case FILTER_FAVOURITE: return (flags & 0x01) != 0;
+      default:               return true;
+    }
+  }
+
+  void rebuildCache() {
+    _filteredCount = 0;
+    uint32_t numContacts = the_mesh.getNumContacts();
+    ContactInfo contact;
+    for (uint32_t i = 0; i < numContacts && _filteredCount < MAX_CONTACTS; i++) {
+      if (the_mesh.getContactByIdx(i, contact)) {
+        if (matchesFilter(contact.type, contact.flags)) {
+          _filteredIdx[_filteredCount] = (uint16_t)i;
+          _filteredTs[_filteredCount] = contact.last_advert_timestamp;
+          _filteredCount++;
+        }
+      }
+    }
+    // Sort by last_advert_timestamp descending (most recently seen first)
+    // Insertion sort — fine for up to ~1000 entries on ESP32
+    for (int i = 1; i < _filteredCount; i++) {
+      uint16_t tmpIdx = _filteredIdx[i];
+      uint32_t tmpTs  = _filteredTs[i];
+      int j = i - 1;
+      while (j >= 0 && _filteredTs[j] < tmpTs) {
+        _filteredIdx[j + 1] = _filteredIdx[j];
+        _filteredTs[j + 1]  = _filteredTs[j];
+        j--;
+      }
+      _filteredIdx[j + 1] = tmpIdx;
+      _filteredTs[j + 1]  = tmpTs;
+    }
+    _cacheValid = true;
+    // Clamp scroll position
+    if (_scrollPos >= _filteredCount) {
+      _scrollPos = (_filteredCount > 0) ? _filteredCount - 1 : 0;
+    }
+  }
+
+  // Format seconds-ago as compact string: "3s" "5m" "2h" "4d" "??"
+  static void formatAge(char* buf, size_t bufLen, uint32_t now, uint32_t timestamp) {
+    if (timestamp == 0) {
+      strncpy(buf, "--", bufLen);
+      return;
+    }
+    int secs = (int)(now - timestamp);
+    if (secs < 0) secs = 0;
+    if (secs < 60) {
+      snprintf(buf, bufLen, "%ds", secs);
+    } else if (secs < 3600) {
+      snprintf(buf, bufLen, "%dm", secs / 60);
+    } else if (secs < 86400) {
+      snprintf(buf, bufLen, "%dh", secs / 3600);
+    } else {
+      snprintf(buf, bufLen, "%dd", secs / 86400);
+    }
+  }
+
+public:
+  ContactsScreen(UITask* task, mesh::RTCClock* rtc)
+    : _task(task), _rtc(rtc), _scrollPos(0), _filter(FILTER_ALL),
+      _filteredCount(0), _cacheValid(false), _rowsPerPage(5) {
+  #if defined(ESP32) && defined(BOARD_HAS_PSRAM)
+    _filteredIdx = (uint16_t*)ps_calloc(MAX_CONTACTS, sizeof(uint16_t));
+    _filteredTs = (uint32_t*)ps_calloc(MAX_CONTACTS, sizeof(uint32_t));
+  #else
+    _filteredIdx = new uint16_t[MAX_CONTACTS]();
+    _filteredTs = new uint32_t[MAX_CONTACTS]();
+  #endif
+  }
+
+  void invalidateCache() { _cacheValid = false; }
+
+  void resetScroll() {
+    _scrollPos = 0;
+    _cacheValid = false;
+  }
+
+  FilterMode getFilter() const { return _filter; }
+
+  // Get the raw contact table index for the currently highlighted item
+  // Returns -1 if no valid selection
+  int getSelectedContactIdx() const {
+    if (_filteredCount == 0) return -1;
+    return _filteredIdx[_scrollPos];
+  }
+
+  // Get the adv_type of the currently highlighted contact
+  // Returns 0xFF if no valid selection
+  uint8_t getSelectedContactType() const {
+    if (_filteredCount == 0) return 0xFF;
+    ContactInfo contact;
+    if (!the_mesh.getContactByIdx(_filteredIdx[_scrollPos], contact)) return 0xFF;
+    return contact.type;
+  }
+
+  // Copy the name of the currently highlighted contact into buf
+  // Returns false if no valid selection
+  bool getSelectedContactName(char* buf, size_t bufLen) const {
+    if (_filteredCount == 0) return false;
+    ContactInfo contact;
+    if (!the_mesh.getContactByIdx(_filteredIdx[_scrollPos], contact)) return false;
+    strncpy(buf, contact.name, bufLen);
+    buf[bufLen - 1] = '\0';
+    return true;
+  }
+
+  int render(DisplayDriver& display) override {
+    if (!_cacheValid) rebuildCache();
+
+    char tmp[48];
+
+    // === Header ===
+    display.setTextSize(1);
+    display.setColor(DisplayDriver::GREEN);
+    display.setCursor(0, 0);
+    snprintf(tmp, sizeof(tmp), "Contacts [%s]", filterLabel(_filter));
+    display.print(tmp);
+
+    // Count on right: All → total/max, filtered → matched/total
+    if (_filter == FILTER_ALL) {
+      snprintf(tmp, sizeof(tmp), "%d/%d", (int)the_mesh.getNumContacts(), MAX_CONTACTS);
+    } else {
+      snprintf(tmp, sizeof(tmp), "%d/%d", _filteredCount, (int)the_mesh.getNumContacts());
+    }
+    display.setCursor(display.width() - display.getTextWidth(tmp) - 2, 0);
+    display.print(tmp);
+
+    // Divider
+    display.drawRect(0, 11, display.width(), 1);
+
+    // === Body - contact rows ===
+    display.setTextSize(0);  // tiny font for compact rows
+    int lineHeight = 9;      // 8px font + 1px gap
+    int headerHeight = 14;
+    int footerHeight = 14;
+    int maxY = display.height() - footerHeight;
+    int y = headerHeight;
+
+    uint32_t now = _rtc->getCurrentTime();
+    int rowsDrawn = 0;
+
+    if (_filteredCount == 0) {
+      display.setColor(DisplayDriver::LIGHT);
+      display.setCursor(0, y);
+      display.print("No contacts");
+      display.setCursor(0, y + lineHeight);
+      display.print("A/D: Change filter");
+    } else {
+      // Center visible window around selected item (TextReaderScreen pattern)
+      int maxVisible = (maxY - headerHeight) / lineHeight;
+      if (maxVisible < 3) maxVisible = 3;
+      int startIdx = max(0, min(_scrollPos - maxVisible / 2,
+                                _filteredCount - maxVisible));
+      int endIdx = min(_filteredCount, startIdx + maxVisible);
+
+      for (int i = startIdx; i < endIdx && y + lineHeight <= maxY; i++) {
+        ContactInfo contact;
+        if (!the_mesh.getContactByIdx(_filteredIdx[i], contact)) continue;
+
+        bool selected = (i == _scrollPos);
+
+        // Highlight: fill LIGHT rect first, then draw DARK text on top
+        if (selected) {
+          display.setColor(DisplayDriver::LIGHT);
+          display.fillRect(0, y + 5, display.width(), lineHeight);
+          display.setColor(DisplayDriver::DARK);
+        } else {
+          display.setColor(DisplayDriver::LIGHT);
+        }
+
+        // Set cursor AFTER fillRect so text draws on top of highlight
+        display.setCursor(0, y);
+
+        // Prefix: "> " for selected, type char + space for others
+        char prefix[4];
+        if (selected) {
+          snprintf(prefix, sizeof(prefix), ">%c", typeChar(contact.type));
+        } else {
+          snprintf(prefix, sizeof(prefix), " %c", typeChar(contact.type));
+        }
+        display.print(prefix);
+
+        // Contact name (truncated to fit)
+        char filteredName[32];
+        display.translateUTF8ToBlocks(filteredName, contact.name, sizeof(filteredName));
+
+        // Reserve space for hops + age on right side
+        char hopStr[6];
+        if (contact.out_path_len == 0xFF || contact.out_path_len == 0) {
+          strcpy(hopStr, "D");  // direct
+        } else {
+          snprintf(hopStr, sizeof(hopStr), "%d", contact.out_path_len);
+        }
+
+        char ageStr[6];
+        formatAge(ageStr, sizeof(ageStr), now, contact.last_advert_timestamp);
+
+        // Build right-side string: "hops age"
+        char rightStr[14];
+        snprintf(rightStr, sizeof(rightStr), "%sh %s", hopStr, ageStr);
+        int rightWidth = display.getTextWidth(rightStr) + 2;
+
+        // Name region: after prefix + small gap, before right info
+        int nameX = display.getTextWidth(prefix) + 2;
+        int nameMaxW = display.width() - nameX - rightWidth - 2;
+        display.drawTextEllipsized(nameX, y, nameMaxW, filteredName);
+
+        // Right-aligned: hops + age
+        display.setCursor(display.width() - rightWidth, y);
+        display.print(rightStr);
+
+        y += lineHeight;
+        rowsDrawn++;
+      }
+      _rowsPerPage = (rowsDrawn > 0) ? rowsDrawn : 1;
+    }
+
+    display.setTextSize(1);  // restore for footer
+
+    // === Footer ===
+    int footerY = display.height() - 12;
+    display.drawRect(0, footerY - 2, display.width(), 1);
+    display.setColor(DisplayDriver::YELLOW);
+
+    // Left: Q:Back
+    display.setCursor(0, footerY);
+    display.print("Q:Back");
+
+    // Center: A/D:Filter
+    const char* mid = "A/D:Filtr";
+    display.setCursor((display.width() - display.getTextWidth(mid)) / 2, footerY);
+    display.print(mid);
+
+    // Right: W/S:Scroll
+    const char* right = "W/S:Scrll";
+    display.setCursor(display.width() - display.getTextWidth(right) - 2, footerY);
+    display.print(right);
+
+    return 5000;  // e-ink: next render after 5s
+  }
+
+  bool handleInput(char c) override {
+    // W - scroll up (previous contact)
+    if (c == 'w' || c == 'W' || c == 0xF2) {
+      if (_scrollPos > 0) {
+        _scrollPos--;
+        return true;
+      }
+    }
+
+    // S - scroll down (next contact)
+    if (c == 's' || c == 'S' || c == 0xF1) {
+      if (_scrollPos < _filteredCount - 1) {
+        _scrollPos++;
+        return true;
+      }
+    }
+
+    // A - previous filter
+    if (c == 'a' || c == 'A') {
+      _filter = (FilterMode)(((int)_filter + FILTER_COUNT - 1) % FILTER_COUNT);
+      _scrollPos = 0;
+      _cacheValid = false;
+      return true;
+    }
+
+    // D - next filter
+    if (c == 'd' || c == 'D') {
+      _filter = (FilterMode)(((int)_filter + 1) % FILTER_COUNT);
+      _scrollPos = 0;
+      _cacheValid = false;
+      return true;
+    }
+
+    // Enter - select contact (future: open RepeaterAdmin for repeaters)
+    if (c == 13 || c == KEY_ENTER) {
+      // TODO Phase 3: if selected contact is a repeater, open RepeaterAdminScreen
+      // For now, just acknowledge the selection
+      return true;
+    }
+
+    return false;
+  }
+};

examples/companion_radio/ui-new/Emojisprites.h

@@ -0,0 +1,748 @@
+#pragma once
+
+// Emoji sprites for e-ink display - dual size
+// Large (12x12) for compose/picker, Small (10x10) for channel view
+// MSB-first, 2 bytes per row
+// 65 total emoji: joy/thumbsup/frown first, then 43 original, then 19 new
+
+#include <stdint.h>
+#ifdef ESP32
+#include <pgmspace.h>
+#endif
+
+#define EMOJI_LG_W 12
+#define EMOJI_LG_H 12
+#define EMOJI_SM_W 10
+#define EMOJI_SM_H 10
+
+#define EMOJI_COUNT 65
+
+// Escape codes in 0x80+ range - safe from keyboard ASCII (32-126)
+#define EMOJI_ESCAPE_START 0x80
+#define EMOJI_ESCAPE_END   0xC0   // 0x80 + 64
+#define EMOJI_PAD_BYTE     0x7F   // DEL, not typeable (key < 127 guard)
+
+// ======== LARGE 12x12 SPRITES ========
+
+// [0] joy  (most common mesh emoji)
+static const uint8_t emoji_lg_joy[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x59,0xA0, 0x59,0xA0, 0x80,0x10, 0xA0,0x50, 0x9F,0x90, 0x40,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [1] thumbsup
+static const uint8_t emoji_lg_thumbsup[] PROGMEM = {
+  0x00,0x00, 0x70,0x00, 0x70,0x00, 0x70,0x00, 0x7F,0x80, 0xFF,0x80, 0xFF,0x80, 0x7F,0x80, 0x3F,0x80, 0x1F,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [2] frown
+static const uint8_t emoji_lg_frown[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x59,0xA0, 0x59,0xA0, 0x80,0x10, 0x9F,0x90, 0xA0,0x50, 0x40,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [3] wireless
+static const uint8_t emoji_lg_wireless[] PROGMEM = {
+  0x00,0x00, 0x3F,0xC0, 0x60,0x60, 0xC0,0x30, 0x0F,0x00, 0x19,0x80, 0x30,0xC0, 0x00,0x00, 0x06,0x00, 0x0F,0x00, 0x06,0x00, 0x00,0x00,
+};
+// [4] infinity
+static const uint8_t emoji_lg_infinity[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x61,0x80, 0x92,0x40, 0x8C,0x40, 0x8C,0x40, 0x92,0x40, 0x61,0x80, 0x00,0x00, 0x00,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [5] trex
+static const uint8_t emoji_lg_trex[] PROGMEM = {
+  0x03,0xE0, 0x06,0xA0, 0x07,0xE0, 0x0C,0x00, 0x5C,0x00, 0x7C,0x00, 0x3C,0x00, 0x38,0x00, 0x3C,0x00, 0x36,0x00, 0x22,0x00, 0x33,0x00,
+};
+// [6] skull
+static const uint8_t emoji_lg_skull[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x59,0xA0, 0x59,0xA0, 0x40,0x20, 0x49,0x20, 0x2F,0x40, 0x1F,0x80, 0x96,0x90, 0x66,0x60, 0x36,0xC0, 0x96,0x90,
+};
+// [7] cross
+static const uint8_t emoji_lg_cross[] PROGMEM = {
+  0x0F,0x00, 0x0F,0x00, 0x0F,0x00, 0x3F,0xC0, 0x3F,0xC0, 0x3F,0xC0, 0x0F,0x00, 0x0F,0x00, 0x0F,0x00, 0x0F,0x00, 0x0F,0x00, 0x0F,0x00,
+};
+// [8] lightning
+static const uint8_t emoji_lg_lightning[] PROGMEM = {
+  0x03,0x00, 0x07,0x00, 0x0E,0x00, 0x1C,0x00, 0x3F,0x80, 0x01,0x80, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x00,0x00,
+};
+// [9] tophat
+static const uint8_t emoji_lg_tophat[] PROGMEM = {
+  0x00,0x00, 0x1F,0x80, 0x3F,0xC0, 0x3F,0xC0, 0x3F,0xC0, 0x3F,0xC0, 0x3F,0xC0, 0x20,0x40, 0x7F,0xE0, 0xFF,0xF0, 0xFF,0xF0, 0x00,0x00,
+};
+// [10] motorcycle
+static const uint8_t emoji_lg_motorcycle[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x0F,0x00, 0x1F,0x80, 0x7F,0xE0, 0xDF,0xB0, 0xDF,0xB0, 0xDF,0xB0, 0xDF,0xB0, 0x60,0x60, 0x00,0x00, 0x00,0x00,
+};
+// [11] seedling
+static const uint8_t emoji_lg_seedling[] PROGMEM = {
+  0x00,0x00, 0x30,0x00, 0x79,0x80, 0x7B,0xC0, 0x33,0xC0, 0x1F,0x80, 0x06,0x00, 0x06,0x00, 0x06,0x00, 0x06,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [12] flag_au
+static const uint8_t emoji_lg_flag_au[] PROGMEM = {
+  0x00,0x00, 0x32,0x40, 0x4A,0x40, 0x4A,0x40, 0x7A,0x40, 0x4A,0x40, 0x49,0x80, 0x00,0x00, 0xFF,0xF0, 0x00,0x00, 0xFF,0xF0, 0x00,0x00,
+};
+// [13] umbrella
+static const uint8_t emoji_lg_umbrella[] PROGMEM = {
+  0x06,0x00, 0x1F,0x80, 0x3F,0xC0, 0x7F,0xE0, 0xFF,0xF0, 0xDB,0x70, 0x06,0x00, 0x06,0x00, 0x06,0x00, 0x06,0x00, 0x46,0x00, 0x3C,0x00,
+};
+// [14] nazar
+static const uint8_t emoji_lg_nazar[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x4F,0x20, 0x99,0x90, 0xB6,0xD0, 0xB6,0xD0, 0xB6,0xD0, 0x99,0x90, 0x4F,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [15] globe
+static const uint8_t emoji_lg_globe[] PROGMEM = {
+  0x1F,0x80, 0x34,0xC0, 0x66,0x60, 0x4F,0x20, 0x8E,0x10, 0x86,0x10, 0x80,0x30, 0x46,0x60, 0x43,0xE0, 0x30,0xC0, 0x1F,0x80, 0x00,0x00,
+};
+// [16] radioactive
+static const uint8_t emoji_lg_radioactive[] PROGMEM = {
+  0x00,0x00, 0x22,0x40, 0x32,0xC0, 0x32,0xC0, 0x1B,0x40, 0x00,0x00, 0x0F,0x00, 0x0F,0x00, 0x00,0x00, 0x60,0x20, 0x39,0xC0, 0x0F,0x00,
+};
+// [17] cow
+static const uint8_t emoji_lg_cow[] PROGMEM = {
+  0x00,0x00, 0xC0,0x60, 0x6E,0xC0, 0x3F,0x80, 0x2A,0x80, 0x3F,0x80, 0x3F,0x80, 0x7F,0xC0, 0x5F,0x40, 0x5F,0x40, 0x11,0x00, 0x31,0x80,
+};
+// [18] alien
+static const uint8_t emoji_lg_alien[] PROGMEM = {
+  0x1F,0x80, 0x3F,0xC0, 0x7F,0xE0, 0x76,0xE0, 0xF6,0xF0, 0x96,0x90, 0x7F,0xE0, 0x36,0xC0, 0x3F,0xC0, 0x16,0x80, 0x0F,0x00, 0x06,0x00,
+};
+// [19] invader
+static const uint8_t emoji_lg_invader[] PROGMEM = {
+  0x10,0x80, 0x09,0x00, 0x1F,0x80, 0x36,0xC0, 0x7F,0xE0, 0x5F,0xA0, 0x50,0xA0, 0x50,0xA0, 0x19,0x80, 0x19,0x80, 0x30,0xC0, 0x00,0x00,
+};
+// [20] dagger
+static const uint8_t emoji_lg_dagger[] PROGMEM = {
+  0x01,0x80, 0x01,0x40, 0x01,0xA0, 0x01,0xC0, 0x01,0x80, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x60,0x00, 0x40,0x00,
+};
+// [21] grimace
+static const uint8_t emoji_lg_grimace[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x59,0xA0, 0x59,0xA0, 0x40,0x20, 0x40,0x20, 0x5F,0xA0, 0x55,0x40, 0x5F,0xA0, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [22] mountain
+static const uint8_t emoji_lg_mountain[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x06,0x00, 0x0F,0x00, 0x19,0x80, 0x30,0xC0, 0x66,0x60, 0xCF,0x30, 0x9F,0x90, 0xFF,0xF0, 0xFF,0xF0, 0x00,0x00,
+};
+// [23] end_arrow
+static const uint8_t emoji_lg_end_arrow[] PROGMEM = {
+  0x00,0x00, 0x7B,0x60, 0x43,0x60, 0x42,0xA0, 0x72,0xA0, 0x43,0x60, 0x43,0x60, 0x7B,0x60, 0x00,0x00, 0x06,0x00, 0x0F,0x00, 0x06,0x00,
+};
+// [24] hollow_circle
+static const uint8_t emoji_lg_hollow_circle[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x40,0x20, 0x80,0x10, 0x80,0x10, 0x80,0x10, 0x80,0x10, 0x80,0x10, 0x40,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [25] dragon
+static const uint8_t emoji_lg_dragon[] PROGMEM = {
+  0x60,0x00, 0xF0,0x00, 0x76,0x00, 0x3F,0x00, 0x1F,0x00, 0x0F,0x00, 0x1F,0x80, 0x3F,0xC0, 0x79,0xE0, 0x30,0xC0, 0x20,0x40, 0x30,0xC0,
+};
+// [26] globe_meridians
+static const uint8_t emoji_lg_globe_meridians[] PROGMEM = {
+  0x1F,0x80, 0x26,0x40, 0x46,0x20, 0x86,0x10, 0xFF,0xF0, 0x86,0x10, 0x86,0x10, 0x46,0x20, 0x26,0x40, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [27] eggplant
+static const uint8_t emoji_lg_eggplant[] PROGMEM = {
+  0x01,0x80, 0x03,0x00, 0x07,0x00, 0x0F,0x00, 0x1F,0x00, 0x3F,0x00, 0x3F,0x00, 0x7E,0x00, 0x7C,0x00, 0x78,0x00, 0x30,0x00, 0x00,0x00,
+};
+// [28] shield
+static const uint8_t emoji_lg_shield[] PROGMEM = {
+  0x00,0x00, 0x7F,0xE0, 0x7F,0xE0, 0x6F,0x60, 0x6F,0x60, 0x6F,0x60, 0x36,0xC0, 0x3F,0xC0, 0x1F,0x80, 0x0F,0x00, 0x06,0x00, 0x00,0x00,
+};
+// [29] goggles
+static const uint8_t emoji_lg_goggles[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x00,0x00, 0x79,0xE0, 0xCF,0x30, 0x86,0x10, 0x86,0x10, 0xCF,0x30, 0x79,0xE0, 0x00,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [30] lizard
+static const uint8_t emoji_lg_lizard[] PROGMEM = {
+  0x00,0x00, 0x03,0x80, 0x07,0xC0, 0x8F,0x00, 0x7F,0x00, 0x3E,0x00, 0x3F,0x80, 0x23,0xC0, 0x41,0xC0, 0x00,0xC0, 0x00,0x60, 0x00,0x20,
+};
+// [31] zany_face
+static const uint8_t emoji_lg_zany_face[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x59,0x20, 0x58,0xA0, 0x40,0x20, 0x40,0x20, 0x4F,0x20, 0x50,0xA0, 0x20,0x40, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [32] kangaroo
+static const uint8_t emoji_lg_kangaroo[] PROGMEM = {
+  0x0E,0x00, 0x1F,0x00, 0x1F,0x00, 0x0E,0x00, 0x0F,0x00, 0x07,0x80, 0x47,0x80, 0x65,0x80, 0x3C,0x80, 0x18,0x80, 0x10,0xC0, 0x18,0xF0,
+};
+// [33] feather
+static const uint8_t emoji_lg_feather[] PROGMEM = {
+  0x00,0x20, 0x00,0x60, 0x00,0xC0, 0x01,0x80, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x60,0x00, 0x70,0x00, 0x00,0x00,
+};
+// [34] bright
+static const uint8_t emoji_lg_bright[] PROGMEM = {
+  0x06,0x00, 0x26,0x40, 0x16,0x80, 0x0F,0x00, 0x6F,0x60, 0x6F,0x60, 0x0F,0x00, 0x16,0x80, 0x26,0x40, 0x06,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [35] part_alt
+static const uint8_t emoji_lg_part_alt[] PROGMEM = {
+  0xC0,0xC0, 0xE1,0xC0, 0xF3,0xC0, 0xDE,0xC0, 0xCC,0xC0, 0xCC,0xC0, 0xC0,0xC0, 0xC0,0xC0, 0xC0,0xC0, 0xC0,0xC0, 0x00,0x00, 0x00,0x00,
+};
+// [36] motorboat
+static const uint8_t emoji_lg_motorboat[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x02,0x00, 0x07,0x00, 0x0F,0x80, 0x1F,0xC0, 0xFF,0xF0, 0x7F,0xE0, 0x3F,0xC0, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [37] domino
+static const uint8_t emoji_lg_domino[] PROGMEM = {
+  0xFF,0xF0, 0x99,0x90, 0x80,0x10, 0x99,0x90, 0x80,0x10, 0x99,0x90, 0xFF,0xF0, 0x80,0x10, 0x80,0x10, 0x86,0x10, 0x80,0x10, 0xFF,0xF0,
+};
+// [38] satellite
+static const uint8_t emoji_lg_satellite[] PROGMEM = {
+  0x78,0x00, 0xCC,0x00, 0x84,0x00, 0xCD,0x00, 0x7B,0x00, 0x03,0x80, 0x01,0xC0, 0x00,0xE0, 0x00,0x60, 0x00,0x20, 0x00,0x00, 0x00,0x00,
+};
+// [39] customs
+static const uint8_t emoji_lg_customs[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x40,0x20, 0x4F,0x20, 0x50,0xA0, 0x50,0xA0, 0x4F,0x20, 0x42,0x20, 0x22,0x40, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [40] cowboy
+static const uint8_t emoji_lg_cowboy[] PROGMEM = {
+  0x0F,0x00, 0x0F,0x00, 0x7F,0xE0, 0xFF,0xF0, 0x00,0x00, 0x3F,0xC0, 0x59,0xA0, 0x40,0x20, 0x4F,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [41] wheel
+static const uint8_t emoji_lg_wheel[] PROGMEM = {
+  0x1F,0x80, 0x26,0x40, 0x46,0x20, 0x9F,0x90, 0xB6,0xD0, 0xFF,0xF0, 0xB6,0xD0, 0x9F,0x90, 0x46,0x20, 0x26,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [42] koala
+static const uint8_t emoji_lg_koala[] PROGMEM = {
+  0x60,0x60, 0xF0,0xF0, 0xF0,0xF0, 0x76,0xE0, 0x26,0x40, 0x2F,0x40, 0x26,0x40, 0x30,0xC0, 0x1F,0x80, 0x00,0x00, 0x00,0x00, 0x00,0x00,
+};
+// [43] control_knobs
+static const uint8_t emoji_lg_control_knobs[] PROGMEM = {
+  0x00,0x00, 0x33,0x30, 0x33,0x30, 0x33,0x30, 0x33,0x30, 0x33,0x30, 0x33,0x30, 0x7B,0x30, 0x37,0xB0, 0x33,0x70, 0x33,0x30, 0x00,0x00,
+};
+// [44] peach
+static const uint8_t emoji_lg_peach[] PROGMEM = {
+  0x06,0x00, 0x0C,0x00, 0x1E,0x00, 0x3F,0x00, 0x7F,0x80, 0x7B,0xC0, 0x7B,0xC0, 0x7B,0xC0, 0x3F,0xC0, 0x1F,0x80, 0x0F,0x00, 0x00,0x00,
+};
+// [45] racing_car
+static const uint8_t emoji_lg_racing_car[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x00,0x00, 0x07,0x80, 0x0F,0xC0, 0x7F,0xE0, 0xFF,0xF0, 0xFF,0xF0, 0x6F,0x60, 0x49,0x20, 0x00,0x00, 0x00,0x00,
+};
+// [46] mouse 🐭
+static const uint8_t emoji_lg_mouse[] PROGMEM = {
+  0x30,0xC0, 0x79,0xE0, 0x79,0xE0, 0x3F,0xC0, 0x49,0x20, 0x80,0x10, 0x86,0x10, 0x89,0x10, 0x40,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [47] mushroom 🍄
+static const uint8_t emoji_lg_mushroom[] PROGMEM = {
+  0x1F,0x80, 0x3F,0xC0, 0x7F,0xE0, 0xE6,0x70, 0xE6,0x70, 0x7F,0xE0, 0x3F,0xC0, 0x0F,0x00, 0x0F,0x00, 0x0F,0x00, 0x1F,0x80, 0x00,0x00,
+};
+// [48] biohazard ☣️
+static const uint8_t emoji_lg_biohazard[] PROGMEM = {
+  0x0F,0x00, 0x1F,0x80, 0x3F,0xC0, 0x1F,0x80, 0x0F,0x00, 0x66,0x60, 0x76,0xE0, 0x70,0xE0, 0x79,0xE0, 0x39,0xC0, 0x19,0x80, 0x00,0x00,
+};
+// [49] panda 🐼
+static const uint8_t emoji_lg_panda[] PROGMEM = {
+  0x00,0x00, 0x60,0x60, 0xF0,0xF0, 0xF0,0xF0, 0x7F,0xE0, 0x59,0xA0, 0x59,0xA0, 0x40,0x20, 0x46,0x20, 0x20,0x40, 0x1F,0x80, 0x00,0x00,
+};
+// [50] anger 💢
+static const uint8_t emoji_lg_anger[] PROGMEM = {
+  0x00,0x00, 0x3C,0xC0, 0x3C,0xC0, 0x30,0xC0, 0x30,0x00, 0x00,0x00, 0x00,0x00, 0x00,0xC0, 0x30,0xC0, 0x33,0xC0, 0x33,0xC0, 0x00,0x00,
+};
+// [51] dragon_face 🐲
+static const uint8_t emoji_lg_dragon_face[] PROGMEM = {
+  0xC0,0x30, 0xE0,0x70, 0x76,0xE0, 0x3F,0xC0, 0x69,0x60, 0x40,0x20, 0x4F,0x20, 0x29,0x40, 0x30,0xC0, 0x1F,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [52] pager 📟
+static const uint8_t emoji_lg_pager[] PROGMEM = {
+  0x00,0x00, 0x7F,0xE0, 0x40,0x20, 0x5F,0xA0, 0x5F,0xA0, 0x40,0x20, 0x5B,0x20, 0x5B,0x20, 0x40,0x20, 0x7F,0xE0, 0x00,0x00, 0x00,0x00,
+};
+// [53] bee 🐝
+static const uint8_t emoji_lg_bee[] PROGMEM = {
+  0x00,0x00, 0x19,0x80, 0x19,0x80, 0x3F,0x80, 0x7F,0xC0, 0x7F,0xE0, 0x7F,0xE0, 0x7F,0xC0, 0x3F,0x80, 0x1F,0x40, 0x0A,0x00, 0x00,0x00,
+};
+// [54] bulb 💡
+static const uint8_t emoji_lg_bulb[] PROGMEM = {
+  0x1F,0x80, 0x20,0x40, 0x40,0x20, 0x40,0x20, 0x40,0x20, 0x20,0x40, 0x30,0xC0, 0x1F,0x80, 0x16,0x80, 0x1F,0x80, 0x0F,0x00, 0x00,0x00,
+};
+// [55] cat 🐱
+static const uint8_t emoji_lg_cat[] PROGMEM = {
+  0x40,0x20, 0x60,0x60, 0x70,0xE0, 0x3F,0xC0, 0x59,0xA0, 0x40,0x20, 0x40,0x20, 0x46,0x20, 0x29,0x40, 0x30,0xC0, 0x1F,0x80, 0x00,0x00,
+};
+// [56] fleur ⚜️
+static const uint8_t emoji_lg_fleur[] PROGMEM = {
+  0x06,0x00, 0x06,0x00, 0x0F,0x00, 0x6F,0x60, 0xF6,0xF0, 0xF6,0xF0, 0x76,0xE0, 0x3F,0xC0, 0x1F,0x80, 0x0F,0x00, 0x19,0x80, 0x00,0x00,
+};
+// [57] moon 🌔
+static const uint8_t emoji_lg_moon[] PROGMEM = {
+  0x1F,0x80, 0x3F,0xC0, 0x7F,0xE0, 0x7F,0x80, 0xFF,0x80, 0xFF,0x00, 0xFF,0x00, 0xFF,0x80, 0x7F,0x80, 0x7F,0xE0, 0x3F,0xC0, 0x1F,0x80,
+};
+// [58] coffee ☕
+static const uint8_t emoji_lg_coffee[] PROGMEM = {
+  0x24,0x80, 0x12,0x40, 0x00,0x00, 0x7F,0xC0, 0x40,0x70, 0x40,0x50, 0x40,0x50, 0x40,0x70, 0x7F,0xC0, 0x00,0x00, 0xFF,0xC0, 0x00,0x00,
+};
+// [59] tooth 🦷
+static const uint8_t emoji_lg_tooth[] PROGMEM = {
+  0x3F,0xC0, 0x7F,0xE0, 0xFF,0xF0, 0xFF,0xF0, 0xFF,0xF0, 0x7F,0xE0, 0x3F,0xC0, 0x3F,0xC0, 0x39,0xC0, 0x39,0xC0, 0x30,0xC0, 0x20,0x40,
+};
+// [60] pretzel 🥨
+static const uint8_t emoji_lg_pretzel[] PROGMEM = {
+  0x39,0xC0, 0x46,0x20, 0x80,0x20, 0x86,0x10, 0x49,0x20, 0x30,0xC0, 0x30,0xC0, 0x49,0x20, 0x86,0x10, 0x80,0x10, 0x46,0x20, 0x39,0xC0,
+};
+// [61] abacus 🧮
+static const uint8_t emoji_lg_abacus[] PROGMEM = {
+  0xFF,0xF0, 0x80,0x10, 0xB6,0x50, 0x80,0x10, 0xA6,0x90, 0x80,0x10, 0x94,0xD0, 0x80,0x10, 0xB2,0x50, 0x80,0x10, 0xFF,0xF0, 0x00,0x00,
+};
+// [62] moai 🗿
+static const uint8_t emoji_lg_moai[] PROGMEM = {
+  0x3F,0xC0, 0x7F,0xC0, 0x7F,0xC0, 0x39,0xC0, 0x39,0xC0, 0x3F,0xC0, 0x27,0x40, 0x3F,0x80, 0x2F,0x00, 0x3F,0x00, 0x3F,0x00, 0x1E,0x00,
+};
+// [63] tipping 💁
+static const uint8_t emoji_lg_tipping[] PROGMEM = {
+  0x1E,0x00, 0x3F,0x00, 0x3F,0x00, 0x1E,0x00, 0x0C,0x00, 0x1E,0x00, 0x3F,0x00, 0x7F,0x80, 0x0C,0xE0, 0x0D,0xE0, 0x12,0xE0, 0x33,0x00,
+};
+// [64] hedgehog 🦔
+static const uint8_t emoji_lg_hedgehog[] PROGMEM = {
+  0x00,0x00, 0x0A,0x80, 0x15,0x40, 0x2A,0xA0, 0x55,0x60, 0x7E,0xF0, 0xDB,0x90, 0xFF,0xD0, 0x7F,0xE0, 0x3F,0xC0, 0x24,0x80, 0x00,0x00,
+};
+
+static const uint8_t* const EMOJI_SPRITES_LG[] PROGMEM = {
+  emoji_lg_joy, emoji_lg_thumbsup, emoji_lg_frown,
+  emoji_lg_wireless, emoji_lg_infinity, emoji_lg_trex, emoji_lg_skull, emoji_lg_cross,
+  emoji_lg_lightning, emoji_lg_tophat, emoji_lg_motorcycle, emoji_lg_seedling, emoji_lg_flag_au,
+  emoji_lg_umbrella, emoji_lg_nazar, emoji_lg_globe, emoji_lg_radioactive, emoji_lg_cow,
+  emoji_lg_alien, emoji_lg_invader, emoji_lg_dagger, emoji_lg_grimace,
+  emoji_lg_mountain, emoji_lg_end_arrow, emoji_lg_hollow_circle, emoji_lg_dragon, emoji_lg_globe_meridians,
+  emoji_lg_eggplant, emoji_lg_shield, emoji_lg_goggles, emoji_lg_lizard, emoji_lg_zany_face,
+  emoji_lg_kangaroo, emoji_lg_feather, emoji_lg_bright, emoji_lg_part_alt, emoji_lg_motorboat,
+  emoji_lg_domino, emoji_lg_satellite, emoji_lg_customs, emoji_lg_cowboy, emoji_lg_wheel,
+  emoji_lg_koala, emoji_lg_control_knobs, emoji_lg_peach, emoji_lg_racing_car,
+  emoji_lg_mouse, emoji_lg_mushroom, emoji_lg_biohazard, emoji_lg_panda,
+  emoji_lg_anger, emoji_lg_dragon_face, emoji_lg_pager, emoji_lg_bee,
+  emoji_lg_bulb, emoji_lg_cat, emoji_lg_fleur, emoji_lg_moon,
+  emoji_lg_coffee, emoji_lg_tooth, emoji_lg_pretzel, emoji_lg_abacus,
+  emoji_lg_moai, emoji_lg_tipping, emoji_lg_hedgehog,
+};
+
+// ======== SMALL 10x10 SPRITES ========
+
+static const uint8_t emoji_sm_joy[] PROGMEM = {
+  0x3F,0x00, 0x61,0x80, 0xF3,0xC0, 0x80,0x40, 0xA1,0x40, 0x9E,0x40, 0x40,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_thumbsup[] PROGMEM = {
+  0x70,0x00, 0x70,0x00, 0x70,0x00, 0x7F,0x00, 0xFF,0x00, 0xFF,0x00, 0x7F,0x00, 0x3E,0x00, 0x1C,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_frown[] PROGMEM = {
+  0x3F,0x00, 0x61,0x80, 0xF3,0xC0, 0x80,0x40, 0x9E,0x40, 0xA1,0x40, 0x40,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_wireless[] PROGMEM = {
+  0x00,0x00, 0x7F,0x80, 0xC0,0xC0, 0x1E,0x00, 0x33,0x00, 0x21,0x00, 0x00,0x00, 0x0C,0x00, 0x0C,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_infinity[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0xE7,0x00, 0x99,0x00, 0x99,0x00, 0xA5,0x00, 0x42,0x00, 0x00,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_trex[] PROGMEM = {
+  0x07,0x80, 0x0F,0x80, 0x0F,0x80, 0x58,0x00, 0x78,0x00, 0x38,0x00, 0x38,0x00, 0x3C,0x00, 0x24,0x00, 0x26,0x00,
+};
+static const uint8_t emoji_sm_skull[] PROGMEM = {
+  0x3F,0x00, 0x61,0x80, 0x73,0x80, 0x40,0x80, 0x52,0x80, 0x3F,0x00, 0x3F,0x00, 0xED,0xC0, 0x6D,0x80, 0xAD,0x40,
+};
+static const uint8_t emoji_sm_cross[] PROGMEM = {
+  0x1E,0x00, 0x1E,0x00, 0x3F,0x00, 0x3F,0x00, 0x3F,0x00, 0x1E,0x00, 0x1E,0x00, 0x1E,0x00, 0x1E,0x00, 0x1E,0x00,
+};
+static const uint8_t emoji_sm_lightning[] PROGMEM = {
+  0x06,0x00, 0x0E,0x00, 0x1C,0x00, 0x3E,0x00, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_tophat[] PROGMEM = {
+  0x00,0x00, 0x3F,0x00, 0x3F,0x00, 0x3F,0x00, 0x3F,0x00, 0x21,0x00, 0x7F,0x80, 0xFF,0xC0, 0xFF,0xC0, 0x00,0x00,
+};
+static const uint8_t emoji_sm_motorcycle[] PROGMEM = {
+  0x00,0x00, 0x1E,0x00, 0x7F,0x80, 0xDE,0xC0, 0xDE,0xC0, 0xDE,0xC0, 0xDE,0xC0, 0x61,0x80, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_seedling[] PROGMEM = {
+  0x00,0x00, 0x70,0x00, 0x77,0x00, 0x77,0x00, 0x3F,0x00, 0x0C,0x00, 0x0C,0x00, 0x0C,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_flag_au[] PROGMEM = {
+  0x00,0x00, 0x75,0x00, 0x55,0x00, 0x75,0x00, 0x55,0x00, 0x53,0x00, 0x00,0x00, 0xFF,0xC0, 0xFF,0xC0, 0x00,0x00,
+};
+static const uint8_t emoji_sm_umbrella[] PROGMEM = {
+  0x0C,0x00, 0x3F,0x00, 0x7F,0x80, 0xFF,0xC0, 0xF7,0xC0, 0x0C,0x00, 0x0C,0x00, 0x0C,0x00, 0x4C,0x00, 0x78,0x00,
+};
+static const uint8_t emoji_sm_nazar[] PROGMEM = {
+  0x3F,0x00, 0x40,0x80, 0x9E,0x40, 0xBF,0x40, 0xAD,0x40, 0xBF,0x40, 0x9E,0x40, 0x4C,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_globe[] PROGMEM = {
+  0x3F,0x00, 0x69,0x80, 0x4C,0x80, 0x9C,0x40, 0x8C,0x40, 0x80,0xC0, 0x4D,0x80, 0x67,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_radioactive[] PROGMEM = {
+  0x00,0x00, 0x25,0x00, 0x25,0x00, 0x37,0x00, 0x00,0x00, 0x1E,0x00, 0x1E,0x00, 0x40,0x00, 0x73,0x80, 0x1E,0x00,
+};
+static const uint8_t emoji_sm_cow[] PROGMEM = {
+  0x00,0x00, 0xC1,0x80, 0x7F,0x00, 0x3F,0x00, 0x3F,0x00, 0x7F,0x00, 0x7F,0x00, 0x7F,0x00, 0x36,0x00, 0x23,0x00,
+};
+static const uint8_t emoji_sm_alien[] PROGMEM = {
+  0x3F,0x00, 0x7F,0x80, 0x7F,0x80, 0xED,0xC0, 0xAD,0x40, 0x7F,0x80, 0x3F,0x00, 0x3F,0x00, 0x1E,0x00, 0x0C,0x00,
+};
+static const uint8_t emoji_sm_invader[] PROGMEM = {
+  0x33,0x00, 0x1E,0x00, 0x3F,0x00, 0x7F,0x80, 0x7F,0x80, 0x61,0x80, 0x73,0x80, 0x33,0x00, 0x33,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_dagger[] PROGMEM = {
+  0x03,0x00, 0x03,0x80, 0x03,0x80, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x60,0x00, 0x40,0x00,
+};
+static const uint8_t emoji_sm_grimace[] PROGMEM = {
+  0x3F,0x00, 0x61,0x80, 0x73,0x80, 0x40,0x80, 0x40,0x80, 0x7F,0x80, 0x55,0x00, 0x7F,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_mountain[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x0C,0x00, 0x1E,0x00, 0x33,0x00, 0x6D,0x80, 0xDE,0xC0, 0xFF,0xC0, 0xFF,0xC0, 0x00,0x00,
+};
+static const uint8_t emoji_sm_end_arrow[] PROGMEM = {
+  0x00,0x00, 0x77,0x80, 0x47,0x80, 0x65,0x80, 0x47,0x80, 0x47,0x80, 0x76,0x80, 0x0C,0x00, 0x1E,0x00, 0x0C,0x00,
+};
+static const uint8_t emoji_sm_hollow_circle[] PROGMEM = {
+  0x3F,0x00, 0x40,0x80, 0x80,0x40, 0x80,0x40, 0x80,0x40, 0x80,0x40, 0x80,0x40, 0x40,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_dragon[] PROGMEM = {
+  0x60,0x00, 0xE0,0x00, 0x7C,0x00, 0x3E,0x00, 0x1E,0x00, 0x3F,0x00, 0x7F,0x80, 0x73,0x80, 0x21,0x00, 0x21,0x00,
+};
+static const uint8_t emoji_sm_globe_meridians[] PROGMEM = {
+  0x3F,0x00, 0x4C,0x80, 0x8C,0x40, 0xFF,0xC0, 0x8C,0x40, 0x8C,0x40, 0x4C,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_eggplant[] PROGMEM = {
+  0x03,0x00, 0x06,0x00, 0x0E,0x00, 0x1E,0x00, 0x3E,0x00, 0x7E,0x00, 0x7C,0x00, 0x78,0x00, 0x70,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_shield[] PROGMEM = {
+  0x00,0x00, 0xFF,0xC0, 0xFF,0xC0, 0xDE,0xC0, 0xDE,0xC0, 0x6D,0x80, 0x7F,0x80, 0x3F,0x00, 0x1E,0x00, 0x0C,0x00,
+};
+static const uint8_t emoji_sm_goggles[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x73,0x80, 0xDE,0xC0, 0x8C,0x40, 0x8C,0x40, 0xDE,0xC0, 0x73,0x80, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_lizard[] PROGMEM = {
+  0x00,0x00, 0x07,0x00, 0x9E,0x00, 0x7E,0x00, 0x3E,0x00, 0x27,0x80, 0x43,0x00, 0x01,0x80, 0x00,0x80, 0x00,0x00,
+};
+static const uint8_t emoji_sm_zany_face[] PROGMEM = {
+  0x3F,0x00, 0x60,0x80, 0x72,0x80, 0x40,0x80, 0x40,0x80, 0x5E,0x80, 0x61,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_kangaroo[] PROGMEM = {
+  0x1C,0x00, 0x3E,0x00, 0x1C,0x00, 0x1E,0x00, 0x0F,0x00, 0x4F,0x00, 0x6B,0x00, 0x39,0x00, 0x31,0x00, 0x31,0xC0,
+};
+static const uint8_t emoji_sm_feather[] PROGMEM = {
+  0x00,0x80, 0x01,0x80, 0x03,0x00, 0x06,0x00, 0x0C,0x00, 0x18,0x00, 0x30,0x00, 0x60,0x00, 0x60,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_bright[] PROGMEM = {
+  0x0C,0x00, 0x2D,0x00, 0x1E,0x00, 0x5E,0x80, 0x7F,0x80, 0x1E,0x00, 0x2D,0x00, 0x0C,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_part_alt[] PROGMEM = {
+  0xC3,0x00, 0xE7,0x00, 0xDB,0x00, 0xDB,0x00, 0xC3,0x00, 0xC3,0x00, 0xC3,0x00, 0xC3,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_motorboat[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x0C,0x00, 0x1E,0x00, 0x3F,0x00, 0xFF,0xC0, 0x7F,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_domino[] PROGMEM = {
+  0xFF,0xC0, 0xB6,0x40, 0xB6,0x40, 0xB6,0x40, 0xFF,0xC0, 0x80,0x40, 0x8C,0x40, 0x80,0x40, 0xFF,0xC0, 0x00,0x00,
+};
+static const uint8_t emoji_sm_satellite[] PROGMEM = {
+  0x70,0x00, 0xD8,0x00, 0x88,0x00, 0xFE,0x00, 0x07,0x00, 0x03,0x80, 0x01,0x80, 0x00,0x80, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_customs[] PROGMEM = {
+  0x3F,0x00, 0x40,0x80, 0x4C,0x80, 0x52,0x80, 0x61,0x80, 0x5E,0x80, 0x44,0x80, 0x3F,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_cowboy[] PROGMEM = {
+  0x1E,0x00, 0x1E,0x00, 0xFF,0xC0, 0x00,0x00, 0x3F,0x00, 0x73,0x80, 0x40,0x80, 0x4C,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_wheel[] PROGMEM = {
+  0x3F,0x00, 0x4C,0x80, 0x9E,0x40, 0xBF,0x40, 0xFF,0xC0, 0xBF,0x40, 0x9E,0x40, 0x4C,0x80, 0x3F,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_koala[] PROGMEM = {
+  0x61,0x80, 0xE1,0xC0, 0xED,0xC0, 0x6D,0x80, 0x3F,0x00, 0x2D,0x00, 0x33,0x00, 0x1E,0x00, 0x00,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_control_knobs[] PROGMEM = {
+  0x00,0x00, 0x26,0xC0, 0x26,0xC0, 0x26,0xC0, 0x26,0xC0, 0x76,0xC0, 0x7E,0xC0, 0x2F,0xC0, 0x26,0xC0, 0x00,0x00,
+};
+static const uint8_t emoji_sm_peach[] PROGMEM = {
+  0x0C,0x00, 0x18,0x00, 0x3C,0x00, 0x7E,0x00, 0x77,0x00, 0x77,0x00, 0x7F,0x00, 0x3F,0x00, 0x1E,0x00, 0x00,0x00,
+};
+static const uint8_t emoji_sm_racing_car[] PROGMEM = {
+  0x00,0x00, 0x00,0x00, 0x0E,0x00, 0x1F,0x00, 0x7F,0x80, 0xFF,0xC0, 0xFF,0xC0, 0x5E,0x80, 0x00,0x00, 0x00,0x00,
+};
+// [46] mouse 🐭
+static const uint8_t emoji_sm_mouse[] PROGMEM = {
+  0x61,0x80, 0xF3,0xC0, 0x7F,0x80, 0x92,0x40, 0x80,0x40, 0x8C,0x40, 0x52,0x80, 0x40,0x80, 0x3F,0x00, 0x00,0x00,
+};
+// [47] mushroom 🍄
+static const uint8_t emoji_sm_mushroom[] PROGMEM = {
+  0x3F,0x00, 0x7F,0x80, 0xED,0xC0, 0xED,0xC0, 0x7F,0x80, 0x3F,0x00, 0x1E,0x00, 0x1E,0x00, 0x3F,0x00, 0x00,0x00,
+};
+// [48] biohazard ☣️
+static const uint8_t emoji_sm_biohazard[] PROGMEM = {
+  0x1E,0x00, 0x3F,0x00, 0x3F,0x00, 0x1E,0x00, 0x6D,0x80, 0x73,0x80, 0x73,0x80, 0x7B,0x80, 0x33,0x00, 0x00,0x00,
+};
+// [49] panda 🐼
+static const uint8_t emoji_sm_panda[] PROGMEM = {
+  0xC0,0xC0, 0xF3,0xC0, 0x7F,0x80, 0xB3,0x40, 0xB3,0x40, 0x80,0x40, 0x4C,0x80, 0x21,0x00, 0x3F,0x00, 0x00,0x00,
+};
+// [50] anger 💢
+static const uint8_t emoji_sm_anger[] PROGMEM = {
+  0x00,0x00, 0x73,0x00, 0x73,0x00, 0x63,0x00, 0x60,0x00, 0x01,0x80, 0x63,0x00, 0x67,0x00, 0x67,0x00, 0x00,0x00,
+};
+// [51] dragon_face 🐲
+static const uint8_t emoji_sm_dragon_face[] PROGMEM = {
+  0xC0,0xC0, 0xED,0xC0, 0x7F,0x80, 0x52,0x80, 0x40,0x80, 0x4C,0x80, 0x33,0x00, 0x2D,0x00, 0x1E,0x00, 0x00,0x00,
+};
+// [52] pager 📟
+static const uint8_t emoji_sm_pager[] PROGMEM = {
+  0x00,0x00, 0x7F,0x80, 0x40,0x80, 0x5E,0x80, 0x40,0x80, 0x5A,0x80, 0x5A,0x80, 0x40,0x80, 0x7F,0x80, 0x00,0x00,
+};
+// [53] bee 🐝
+static const uint8_t emoji_sm_bee[] PROGMEM = {
+  0x33,0x00, 0x33,0x00, 0x7F,0x00, 0xFF,0x80, 0xFF,0xC0, 0xFF,0x80, 0x7F,0x00, 0x3E,0x80, 0x14,0x00, 0x00,0x00,
+};
+// [54] bulb 💡
+static const uint8_t emoji_sm_bulb[] PROGMEM = {
+  0x3F,0x00, 0x40,0x80, 0x80,0x40, 0x80,0x40, 0x40,0x80, 0x33,0x00, 0x3F,0x00, 0x1E,0x00, 0x1E,0x00, 0x00,0x00,
+};
+// [55] cat 🐱
+static const uint8_t emoji_sm_cat[] PROGMEM = {
+  0x80,0x40, 0xC0,0xC0, 0x7F,0x80, 0xB3,0x40, 0x80,0x40, 0x8C,0x40, 0x52,0x80, 0x61,0x80, 0x3F,0x00, 0x00,0x00,
+};
+// [56] fleur ⚜️
+static const uint8_t emoji_sm_fleur[] PROGMEM = {
+  0x0C,0x00, 0x0C,0x00, 0x6D,0x80, 0xED,0xC0, 0xED,0xC0, 0x6D,0x80, 0x3F,0x00, 0x1E,0x00, 0x33,0x00, 0x00,0x00,
+};
+// [57] moon 🌔
+static const uint8_t emoji_sm_moon[] PROGMEM = {
+  0x3F,0x00, 0x7F,0x80, 0xFF,0x80, 0xFE,0x00, 0xFE,0x00, 0xFE,0x00, 0xFE,0x00, 0xFF,0x80, 0x7F,0x80, 0x3F,0x00,
+};
+// [58] coffee ☕
+static const uint8_t emoji_sm_coffee[] PROGMEM = {
+  0x49,0x00, 0x24,0x80, 0x00,0x00, 0xFF,0x00, 0x81,0xC0, 0x81,0x40, 0x81,0xC0, 0xFF,0x00, 0x00,0x00, 0xFE,0x00,
+};
+// [59] tooth 🦷
+static const uint8_t emoji_sm_tooth[] PROGMEM = {
+  0x7F,0x80, 0xFF,0xC0, 0xFF,0xC0, 0xFF,0xC0, 0x7F,0x80, 0x3F,0x00, 0x3B,0x80, 0x31,0x80, 0x20,0x80, 0x00,0x00,
+};
+// [60] pretzel 🥨
+static const uint8_t emoji_sm_pretzel[] PROGMEM = {
+  0x73,0x80, 0x9E,0x40, 0x8C,0x40, 0x52,0x80, 0x33,0x00, 0x33,0x00, 0x52,0x80, 0x8C,0x40, 0x9E,0x40, 0x73,0x80,
+};
+// [61] abacus 🧮
+static const uint8_t emoji_sm_abacus[] PROGMEM = {
+  0xFF,0xC0, 0x80,0x40, 0xB5,0x40, 0x80,0x40, 0xAD,0x40, 0x80,0x40, 0xAB,0x40, 0x80,0x40, 0xFF,0xC0, 0x00,0x00,
+};
+// [62] moai 🗿
+static const uint8_t emoji_sm_moai[] PROGMEM = {
+  0x7F,0x00, 0x7F,0x00, 0x33,0x00, 0x33,0x00, 0x3F,0x00, 0x2E,0x00, 0x3E,0x00, 0x3E,0x00, 0x3E,0x00, 0x1C,0x00,
+};
+// [63] tipping 💁
+static const uint8_t emoji_sm_tipping[] PROGMEM = {
+  0x3C,0x00, 0x7E,0x00, 0x7E,0x00, 0x3C,0x00, 0x18,0x00, 0x3C,0x00, 0x7E,0x00, 0x1B,0x80, 0x1B,0x80, 0x36,0x00,
+};
+// [64] hedgehog 🦔
+static const uint8_t emoji_sm_hedgehog[] PROGMEM = {
+  0x15,0x00, 0x2A,0x80, 0x55,0x40, 0xFF,0xC0, 0xDB,0x40, 0xFF,0x80, 0x7F,0x80, 0x3F,0x00, 0x24,0x00, 0x00,0x00,
+};
+
+static const uint8_t* const EMOJI_SPRITES_SM[] PROGMEM = {
+  emoji_sm_joy, emoji_sm_thumbsup, emoji_sm_frown,
+  emoji_sm_wireless, emoji_sm_infinity, emoji_sm_trex, emoji_sm_skull, emoji_sm_cross,
+  emoji_sm_lightning, emoji_sm_tophat, emoji_sm_motorcycle, emoji_sm_seedling, emoji_sm_flag_au,
+  emoji_sm_umbrella, emoji_sm_nazar, emoji_sm_globe, emoji_sm_radioactive, emoji_sm_cow,
+  emoji_sm_alien, emoji_sm_invader, emoji_sm_dagger, emoji_sm_grimace,
+  emoji_sm_mountain, emoji_sm_end_arrow, emoji_sm_hollow_circle, emoji_sm_dragon, emoji_sm_globe_meridians,
+  emoji_sm_eggplant, emoji_sm_shield, emoji_sm_goggles, emoji_sm_lizard, emoji_sm_zany_face,
+  emoji_sm_kangaroo, emoji_sm_feather, emoji_sm_bright, emoji_sm_part_alt, emoji_sm_motorboat,
+  emoji_sm_domino, emoji_sm_satellite, emoji_sm_customs, emoji_sm_cowboy, emoji_sm_wheel,
+  emoji_sm_koala, emoji_sm_control_knobs, emoji_sm_peach, emoji_sm_racing_car,
+  emoji_sm_mouse, emoji_sm_mushroom, emoji_sm_biohazard, emoji_sm_panda,
+  emoji_sm_anger, emoji_sm_dragon_face, emoji_sm_pager, emoji_sm_bee,
+  emoji_sm_bulb, emoji_sm_cat, emoji_sm_fleur, emoji_sm_moon,
+  emoji_sm_coffee, emoji_sm_tooth, emoji_sm_pretzel, emoji_sm_abacus,
+  emoji_sm_moai, emoji_sm_tipping, emoji_sm_hedgehog,
+};
+
+// ---- Codepoint lookup for UTF-8 conversion ----
+struct EmojiCodepoint { uint32_t cp; uint32_t cp2; uint8_t escape; };
+
+static const EmojiCodepoint EMOJI_CODEPOINTS[EMOJI_COUNT] = {
+  { 0x1F602, 0x0000, 0x80 }, // joy
+  { 0x1F44D, 0x0000, 0x81 }, // thumbsup
+  { 0x2639,  0x0000, 0x82 }, // frown
+  { 0x1F6DC, 0x0000, 0x83 }, // wireless
+  { 0x267E,  0x0000, 0x84 }, // infinity
+  { 0x1F996, 0x0000, 0x85 }, // trex
+  { 0x2620,  0x0000, 0x86 }, // skull
+  { 0x271D,  0x0000, 0x87 }, // cross
+  { 0x26A1,  0x0000, 0x88 }, // lightning
+  { 0x1F3A9, 0x0000, 0x89 }, // tophat
+  { 0x1F3CD, 0x0000, 0x8A }, // motorcycle
+  { 0x1F331, 0x0000, 0x8B }, // seedling
+  { 0x1F1E6, 0x1F1FA, 0x8C }, // flag_au
+  { 0x2602,  0x0000, 0x8D }, // umbrella
+  { 0x1F9FF, 0x0000, 0x8E }, // nazar
+  { 0x1F30F, 0x0000, 0x8F }, // globe
+  { 0x2622,  0x0000, 0x90 }, // radioactive
+  { 0x1F404, 0x0000, 0x91 }, // cow
+  { 0x1F47D, 0x0000, 0x92 }, // alien
+  { 0x1F47E, 0x0000, 0x93 }, // invader
+  { 0x1F5E1, 0x0000, 0x94 }, // dagger
+  { 0x1F62C, 0x0000, 0x95 }, // grimace
+  { 0x26F0,  0x0000, 0x96 }, // mountain
+  { 0x1F51A, 0x0000, 0x97 }, // end_arrow
+  { 0x2B55,  0x0000, 0x98 }, // hollow_circle
+  { 0x1F409, 0x0000, 0x99 }, // dragon
+  { 0x1F310, 0x0000, 0x9A }, // globe_meridians
+  { 0x1F346, 0x0000, 0x9B }, // eggplant
+  { 0x1F6E1, 0x0000, 0x9C }, // shield
+  { 0x1F97D, 0x0000, 0x9D }, // goggles
+  { 0x1F98E, 0x0000, 0x9E }, // lizard
+  { 0x1F92A, 0x0000, 0x9F }, // zany_face
+  { 0x1F998, 0x0000, 0xA0 }, // kangaroo
+  { 0x1FAB6, 0x0000, 0xA1 }, // feather
+  { 0x1F506, 0x0000, 0xA2 }, // bright
+  { 0x303D,  0x0000, 0xA3 }, // part_alt
+  { 0x1F6E5, 0x0000, 0xA4 }, // motorboat
+  { 0x1F030, 0x0000, 0xA5 }, // domino
+  { 0x1F4E1, 0x0000, 0xA6 }, // satellite
+  { 0x1F6C3, 0x0000, 0xA7 }, // customs
+  { 0x1F920, 0x0000, 0xA8 }, // cowboy
+  { 0x1F6DE, 0x0000, 0xA9 }, // wheel
+  { 0x1F428, 0x0000, 0xAA }, // koala
+  { 0x1F39B, 0x0000, 0xAB }, // control_knobs
+  { 0x1F351, 0x0000, 0xAC }, // peach
+  { 0x1F3CE, 0x0000, 0xAD }, // racing_car
+  { 0x1F42D, 0x0000, 0xAE }, // mouse
+  { 0x1F344, 0x0000, 0xAF }, // mushroom
+  { 0x2623,  0x0000, 0xB0 }, // biohazard
+  { 0x1F43C, 0x0000, 0xB1 }, // panda
+  { 0x1F4A2, 0x0000, 0xB2 }, // anger
+  { 0x1F432, 0x0000, 0xB3 }, // dragon_face
+  { 0x1F4DF, 0x0000, 0xB4 }, // pager
+  { 0x1F41D, 0x0000, 0xB5 }, // bee
+  { 0x1F4A1, 0x0000, 0xB6 }, // bulb
+  { 0x1F431, 0x0000, 0xB7 }, // cat
+  { 0x269C,  0x0000, 0xB8 }, // fleur
+  { 0x1F314, 0x0000, 0xB9 }, // moon
+  { 0x2615,  0x0000, 0xBA }, // coffee
+  { 0x1F9B7, 0x0000, 0xBB }, // tooth
+  { 0x1F968, 0x0000, 0xBC }, // pretzel
+  { 0x1F9EE, 0x0000, 0xBD }, // abacus
+  { 0x1F5FF, 0x0000, 0xBE }, // moai
+  { 0x1F481, 0x0000, 0xBF }, // tipping
+  { 0x1F994, 0x0000, 0xC0 }, // hedgehog
+};
+
+// ---- Helper functions ----
+
+// Alias table: extra codepoints that map to existing emoji escape bytes.
+// Used for variant codepoints (e.g. MWD node identifier 🂎 U+1F08E -> domino sprite)
+struct EmojiAlias { uint32_t cp; uint8_t escape; };
+#define EMOJI_ALIAS_COUNT 1
+static const EmojiAlias EMOJI_ALIASES[EMOJI_ALIAS_COUNT] = {
+  { 0x1F08E, 0xA5 }, // domino tile (MWD node signifier) -> domino sprite
+};
+
+static uint32_t emojiDecodeUtf8(const uint8_t* s, int remaining, int* bytes_consumed) {
+  uint8_t b0 = s[0];
+  if (b0 < 0x80) { *bytes_consumed = 1; return b0; }
+  if ((b0 & 0xE0) == 0xC0 && remaining >= 2) {
+    *bytes_consumed = 2;
+    return ((uint32_t)(b0 & 0x1F) << 6) | (s[1] & 0x3F);
+  }
+  if ((b0 & 0xF0) == 0xE0 && remaining >= 3) {
+    *bytes_consumed = 3;
+    return ((uint32_t)(b0 & 0x0F) << 12) | ((uint32_t)(s[1] & 0x3F) << 6) | (s[2] & 0x3F);
+  }
+  if ((b0 & 0xF8) == 0xF0 && remaining >= 4) {
+    *bytes_consumed = 4;
+    return ((uint32_t)(b0 & 0x07) << 18) | ((uint32_t)(s[1] & 0x3F) << 12) | ((uint32_t)(s[2] & 0x3F) << 6) | (s[3] & 0x3F);
+  }
+  *bytes_consumed = 1;
+  return 0xFFFD;
+}
+
+// Convert UTF-8 text to internal format (emoji codepoints -> escape bytes)
+// Now handles ALL multi-byte UTF-8 (>= 0x80) to prevent raw high bytes in buffer
+static void emojiSanitize(const char* src, char* dst, int dstLen) {
+  const uint8_t* s = (const uint8_t*)src;
+  int si = 0, di = 0;
+  int srcLen = strlen(src);
+  while (si < srcLen && di < dstLen - 1) {
+    uint8_t b = s[si];
+    if (b >= 0x80) {
+      int consumed;
+      uint32_t cp = emojiDecodeUtf8(s + si, srcLen - si, &consumed);
+      if (cp == 0xFE0F) { si += consumed; continue; }
+      bool found = false;
+      for (int e = 0; e < EMOJI_COUNT; e++) {
+        if (EMOJI_CODEPOINTS[e].cp == cp) {
+          if (EMOJI_CODEPOINTS[e].cp2 != 0) {
+            int consumed2;
+            if (si + consumed < srcLen) {
+              uint32_t cp2 = emojiDecodeUtf8(s + si + consumed, srcLen - si - consumed, &consumed2);
+              if (cp2 == EMOJI_CODEPOINTS[e].cp2) {
+                dst[di++] = EMOJI_CODEPOINTS[e].escape;
+                si += consumed + consumed2;
+                found = true; break;
+              }
+            }
+            continue;
+          }
+          dst[di++] = EMOJI_CODEPOINTS[e].escape;
+          si += consumed;
+          // Skip trailing variation selector U+FE0F
+          if (si + 2 < srcLen && s[si] == 0xEF && s[si+1] == 0xB8 && s[si+2] == 0x8F) si += 3;
+          found = true; break;
+        }
+      }
+      if (!found) {
+        // Check alias table for variant codepoints
+        for (int a = 0; a < EMOJI_ALIAS_COUNT; a++) {
+          if (EMOJI_ALIASES[a].cp == cp) {
+            dst[di++] = EMOJI_ALIASES[a].escape;
+            si += consumed;
+            // Skip trailing variation selector U+FE0F
+            if (si + 2 < srcLen && s[si] == 0xEF && s[si+1] == 0xB8 && s[si+2] == 0x8F) si += 3;
+            found = true; break;
+          }
+        }
+      }
+      if (!found) si += consumed;  // Skip unknown multi-byte chars
+    } else {
+      dst[di++] = (char)b;
+      si++;
+    }
+  }
+  dst[di] = '\0';
+}
+
+static inline bool isEmojiEscape(uint8_t b) {
+  return b >= EMOJI_ESCAPE_START && b <= EMOJI_ESCAPE_END;
+}
+
+static int emojiEncodeUtf8(uint32_t cp, uint8_t* dst) {
+  if (cp < 0x80) { dst[0] = (uint8_t)cp; return 1; }
+  if (cp < 0x800) { dst[0] = 0xC0|(cp>>6); dst[1] = 0x80|(cp&0x3F); return 2; }
+  if (cp < 0x10000) { dst[0] = 0xE0|(cp>>12); dst[1] = 0x80|((cp>>6)&0x3F); dst[2] = 0x80|(cp&0x3F); return 3; }
+  dst[0] = 0xF0|(cp>>18); dst[1] = 0x80|((cp>>12)&0x3F); dst[2] = 0x80|((cp>>6)&0x3F); dst[3] = 0x80|(cp&0x3F); return 4;
+}
+
+static void emojiUnescape(const char* src, char* dst, int dstLen) {
+  int si = 0, di = 0;
+  int srcLen = strlen(src);
+  while (si < srcLen && di < dstLen - 1) {
+    uint8_t b = (uint8_t)src[si];
+    if (b == EMOJI_PAD_BYTE) { si++; continue; }
+    if (isEmojiEscape(b)) {
+      int idx = b - EMOJI_ESCAPE_START;
+      if (idx < EMOJI_COUNT) {
+        uint8_t utf8[8];
+        int len = emojiEncodeUtf8(EMOJI_CODEPOINTS[idx].cp, utf8);
+        if (EMOJI_CODEPOINTS[idx].cp2 != 0)
+          len += emojiEncodeUtf8(EMOJI_CODEPOINTS[idx].cp2, utf8 + len);
+        if (di + len < dstLen) { memcpy(dst + di, utf8, len); di += len; } else break;
+      }
+      si++;
+    } else { dst[di++] = src[si++]; }
+  }
+  dst[di] = '\0';
+}
+
+static inline const uint8_t* getEmojiSpriteLg(uint8_t escape_byte) {
+  if (!isEmojiEscape(escape_byte)) return nullptr;
+  return (const uint8_t*)pgm_read_ptr(&EMOJI_SPRITES_LG[escape_byte - EMOJI_ESCAPE_START]);
+}
+
+static inline const uint8_t* getEmojiSpriteSm(uint8_t escape_byte) {
+  if (!isEmojiEscape(escape_byte)) return nullptr;
+  return (const uint8_t*)pgm_read_ptr(&EMOJI_SPRITES_SM[escape_byte - EMOJI_ESCAPE_START]);
+}
+
+static inline int emojiUtf8Cost(uint8_t escape_byte) {
+  if (!isEmojiEscape(escape_byte)) return 1;
+  int idx = escape_byte - EMOJI_ESCAPE_START;
+  uint32_t cp = EMOJI_CODEPOINTS[idx].cp;
+  int cost = (cp < 0x80) ? 1 : (cp < 0x800) ? 2 : (cp < 0x10000) ? 3 : 4;
+  if (EMOJI_CODEPOINTS[idx].cp2 != 0) {
+    uint32_t cp2 = EMOJI_CODEPOINTS[idx].cp2;
+    cost += (cp2 < 0x80) ? 1 : (cp2 < 0x800) ? 2 : (cp2 < 0x10000) ? 3 : 4;
+  }
+  return cost;
+}

examples/companion_radio/ui-new/EpubZipReader.h

@@ -0,0 +1,538 @@
+#pragma once
+// =============================================================================
+// EpubZipReader.h - Minimal ZIP reader for EPUB files on ESP32-S3
+//
+// Parses ZIP archives directly from SD card File objects.
+// Uses the ESP32 ROM's built-in tinfl decompressor for DEFLATE.
+// No external library dependencies.
+//
+// Supports:
+//   - STORED (method 0) entries - direct copy
+//   - DEFLATED (method 8) entries - ROM tinfl decompression
+//   - ZIP64 is NOT supported (EPUBs don't need it)
+//
+// Memory: Allocates decompression buffers from PSRAM when available.
+// Typical EPUB chapter is 5-50KB, well within ESP32-S3's 8MB PSRAM.
+// =============================================================================
+
+#include <SD.h>
+#include <FS.h>
+
+// ROM tinfl decompressor - built into ESP32/ESP32-S3 ROM
+// If this include fails on your platform, see the fallback note at bottom
+#if __has_include(<rom/miniz.h>)
+  #include <rom/miniz.h>
+  #define HAS_ROM_TINFL 1
+#elif __has_include(<esp32s3/rom/miniz.h>)
+  #include <esp32s3/rom/miniz.h>
+  #define HAS_ROM_TINFL 1
+#elif __has_include(<esp32/rom/miniz.h>)
+  #include <esp32/rom/miniz.h>
+  #define HAS_ROM_TINFL 1
+#else
+  #warning "ROM miniz not found - DEFLATED entries will not be supported"
+  #define HAS_ROM_TINFL 0
+#endif
+
+// ---- ZIP format constants ----
+#define ZIP_LOCAL_FILE_HEADER_SIG   0x04034b50
+#define ZIP_CENTRAL_DIR_SIG         0x02014b50
+#define ZIP_END_OF_CENTRAL_DIR_SIG  0x06054b50
+
+#define ZIP_METHOD_STORED   0
+#define ZIP_METHOD_DEFLATED 8
+
+// Maximum files we track in a ZIP (EPUBs typically have 20-100 files)
+#define ZIP_MAX_ENTRIES 128
+
+// Maximum filename length within the ZIP
+#define ZIP_MAX_FILENAME 128
+
+// ---- Data structures ----
+
+struct ZipEntry {
+  char     filename[ZIP_MAX_FILENAME];
+  uint16_t compressionMethod;   // 0=STORED, 8=DEFLATED
+  uint32_t compressedSize;
+  uint32_t uncompressedSize;
+  uint32_t localHeaderOffset;   // Offset to local file header in ZIP
+  uint32_t crc32;
+};
+
+// ---- Helper: read little-endian values from a byte buffer ----
+
+static inline uint16_t zipRead16(const uint8_t* p) {
+  return (uint16_t)p[0] | ((uint16_t)p[1] << 8);
+}
+
+static inline uint32_t zipRead32(const uint8_t* p) {
+  return (uint32_t)p[0] | ((uint32_t)p[1] << 8) |
+         ((uint32_t)p[2] << 16) | ((uint32_t)p[3] << 24);
+}
+
+// =============================================================================
+// EpubZipReader class
+// =============================================================================
+
+class EpubZipReader {
+public:
+  EpubZipReader() : _entryCount(0), _isOpen(false), _entries(nullptr) {
+    // Allocate entries array from PSRAM to avoid stack overflow
+    // (128 entries × ~146 bytes = ~19KB — too large for 8KB loopTask stack)
+#ifdef BOARD_HAS_PSRAM
+    _entries = (ZipEntry*)ps_malloc(ZIP_MAX_ENTRIES * sizeof(ZipEntry));
+#endif
+    if (!_entries) {
+      _entries = (ZipEntry*)malloc(ZIP_MAX_ENTRIES * sizeof(ZipEntry));
+    }
+    if (!_entries) {
+      Serial.println("ZipReader: FATAL - failed to allocate entry table");
+    }
+  }
+
+  ~EpubZipReader() {
+    if (_entries) {
+      free(_entries);
+      _entries = nullptr;
+    }
+  }
+
+  // ----------------------------------------------------------
+  // Open a ZIP file and parse its central directory.
+  // Returns true on success, false on error.
+  // After open(), entries are available via getEntryCount()/getEntry().
+  // ----------------------------------------------------------
+  bool open(File& zipFile) {
+    _isOpen = false;
+    _entryCount = 0;
+
+    if (!_entries) {
+      Serial.println("ZipReader: entry table not allocated");
+      return false;
+    }
+
+    if (!zipFile || !zipFile.available()) {
+      Serial.println("ZipReader: file not valid");
+      return false;
+    }
+
+    _file = zipFile;
+    uint32_t fileSize = _file.size();
+
+    if (fileSize < 22) {
+      Serial.println("ZipReader: file too small for ZIP");
+      return false;
+    }
+
+    // ---- Step 1: Find the End of Central Directory record ----
+    // EOCD is at least 22 bytes, at end of file.
+    // Search backwards from end for the EOCD signature.
+    // Comment can be up to 65535 bytes, but EPUBs typically have none.
+    uint32_t searchStart = (fileSize > 65557) ? (fileSize - 65557) : 0;
+    uint32_t eocdOffset = 0;
+    bool foundEocd = false;
+
+    // Read the last chunk into a buffer to search for EOCD signature
+    uint32_t searchLen = fileSize - searchStart;
+    // Cap search buffer to a reasonable size
+    if (searchLen > 1024) {
+      searchStart = fileSize - 1024;
+      searchLen = 1024;
+    }
+
+    uint8_t* searchBuf = (uint8_t*)_allocBuffer(searchLen);
+    if (!searchBuf) {
+      Serial.println("ZipReader: failed to alloc search buffer");
+      return false;
+    }
+
+    _file.seek(searchStart);
+    if (_file.read(searchBuf, searchLen) != (int)searchLen) {
+      free(searchBuf);
+      Serial.println("ZipReader: failed to read EOCD area");
+      return false;
+    }
+
+    // Scan backwards for EOCD signature (0x06054b50)
+    for (int i = (int)searchLen - 22; i >= 0; i--) {
+      if (zipRead32(&searchBuf[i]) == ZIP_END_OF_CENTRAL_DIR_SIG) {
+        eocdOffset = searchStart + i;
+        // Parse EOCD fields
+        uint16_t totalEntries = zipRead16(&searchBuf[i + 10]);
+        uint32_t cdSize       = zipRead32(&searchBuf[i + 12]);
+        uint32_t cdOffset     = zipRead32(&searchBuf[i + 16]);
+
+        _cdOffset = cdOffset;
+        _cdSize = cdSize;
+        _totalEntries = totalEntries;
+        foundEocd = true;
+        break;
+      }
+    }
+    free(searchBuf);
+
+    if (!foundEocd) {
+      Serial.println("ZipReader: EOCD not found - not a valid ZIP");
+      return false;
+    }
+
+    Serial.printf("ZipReader: EOCD found at %u, %u entries, CD at %u (%u bytes)\n",
+                  eocdOffset, _totalEntries, _cdOffset, _cdSize);
+
+    // ---- Step 2: Parse Central Directory entries ----
+    if (_cdSize == 0 || _cdSize > 512 * 1024) {
+      Serial.println("ZipReader: central directory size unreasonable");
+      return false;
+    }
+
+    uint8_t* cdBuf = (uint8_t*)_allocBuffer(_cdSize);
+    if (!cdBuf) {
+      Serial.printf("ZipReader: failed to alloc %u bytes for central directory\n", _cdSize);
+      return false;
+    }
+
+    _file.seek(_cdOffset);
+    if (_file.read(cdBuf, _cdSize) != (int)_cdSize) {
+      free(cdBuf);
+      Serial.println("ZipReader: failed to read central directory");
+      return false;
+    }
+
+    uint32_t pos = 0;
+    _entryCount = 0;
+
+    while (pos + 46 <= _cdSize && _entryCount < ZIP_MAX_ENTRIES) {
+      if (zipRead32(&cdBuf[pos]) != ZIP_CENTRAL_DIR_SIG) {
+        break;  // No more central directory entries
+      }
+
+      uint16_t method       = zipRead16(&cdBuf[pos + 10]);
+      uint32_t crc          = zipRead32(&cdBuf[pos + 16]);
+      uint32_t compSize     = zipRead32(&cdBuf[pos + 20]);
+      uint32_t uncompSize   = zipRead32(&cdBuf[pos + 24]);
+      uint16_t fnLen        = zipRead16(&cdBuf[pos + 28]);
+      uint16_t extraLen     = zipRead16(&cdBuf[pos + 30]);
+      uint16_t commentLen   = zipRead16(&cdBuf[pos + 32]);
+      uint32_t localOffset  = zipRead32(&cdBuf[pos + 42]);
+
+      // Copy filename (truncate if necessary)
+      int copyLen = (fnLen < ZIP_MAX_FILENAME - 1) ? fnLen : ZIP_MAX_FILENAME - 1;
+      memcpy(_entries[_entryCount].filename, &cdBuf[pos + 46], copyLen);
+      _entries[_entryCount].filename[copyLen] = '\0';
+
+      _entries[_entryCount].compressionMethod = method;
+      _entries[_entryCount].compressedSize = compSize;
+      _entries[_entryCount].uncompressedSize = uncompSize;
+      _entries[_entryCount].localHeaderOffset = localOffset;
+      _entries[_entryCount].crc32 = crc;
+
+      // Skip directories (filenames ending with '/')
+      if (copyLen > 0 && _entries[_entryCount].filename[copyLen - 1] != '/') {
+        _entryCount++;
+      }
+
+      // Advance past this central directory entry
+      pos += 46 + fnLen + extraLen + commentLen;
+    }
+
+    free(cdBuf);
+
+    Serial.printf("ZipReader: parsed %d file entries\n", _entryCount);
+    _isOpen = true;
+    return true;
+  }
+
+  // ----------------------------------------------------------
+  // Close the reader (does not close the underlying File).
+  // ----------------------------------------------------------
+  void close() {
+    _isOpen = false;
+    _entryCount = 0;
+  }
+
+  // ----------------------------------------------------------
+  // Get entry count and entries
+  // ----------------------------------------------------------
+  int getEntryCount() const { return _entryCount; }
+
+  const ZipEntry* getEntry(int index) const {
+    if (index < 0 || index >= _entryCount) return nullptr;
+    return &_entries[index];
+  }
+
+  // ----------------------------------------------------------
+  // Find an entry by filename (case-sensitive).
+  // Returns index, or -1 if not found.
+  // ----------------------------------------------------------
+  int findEntry(const char* filename) const {
+    for (int i = 0; i < _entryCount; i++) {
+      if (strcmp(_entries[i].filename, filename) == 0) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  // ----------------------------------------------------------
+  // Find an entry by filename suffix (e.g., ".opf", ".ncx").
+  // Returns index of first match, or -1 if not found.
+  // ----------------------------------------------------------
+  int findEntryBySuffix(const char* suffix) const {
+    int suffixLen = strlen(suffix);
+    for (int i = 0; i < _entryCount; i++) {
+      int fnLen = strlen(_entries[i].filename);
+      if (fnLen >= suffixLen &&
+          strcasecmp(&_entries[i].filename[fnLen - suffixLen], suffix) == 0) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  // ----------------------------------------------------------
+  // Find entries matching a path prefix (e.g., "OEBPS/").
+  // Fills matchIndices[] up to maxMatches. Returns count found.
+  // ----------------------------------------------------------
+  int findEntriesByPrefix(const char* prefix, int* matchIndices, int maxMatches) const {
+    int count = 0;
+    int prefixLen = strlen(prefix);
+    for (int i = 0; i < _entryCount && count < maxMatches; i++) {
+      if (strncmp(_entries[i].filename, prefix, prefixLen) == 0) {
+        matchIndices[count++] = i;
+      }
+    }
+    return count;
+  }
+
+  // ----------------------------------------------------------
+  // Extract a file entry to a newly allocated buffer.
+  //
+  // On success, returns a malloc'd buffer (caller must free!)
+  // and sets *outSize to the uncompressed size.
+  //
+  // On failure, returns nullptr.
+  //
+  // The buffer is allocated from PSRAM if available.
+  // ----------------------------------------------------------
+  uint8_t* extractEntry(int index, uint32_t* outSize) {
+    if (!_isOpen || index < 0 || index >= _entryCount) {
+      return nullptr;
+    }
+
+    const ZipEntry& entry = _entries[index];
+
+    // ---- Read the local file header to get actual data offset ----
+    // Local header: 30 bytes fixed + variable filename + extra field
+    uint8_t localHeader[30];
+    _file.seek(entry.localHeaderOffset);
+    if (_file.read(localHeader, 30) != 30) {
+      Serial.println("ZipReader: failed to read local header");
+      return nullptr;
+    }
+
+    if (zipRead32(localHeader) != ZIP_LOCAL_FILE_HEADER_SIG) {
+      Serial.println("ZipReader: bad local header signature");
+      return nullptr;
+    }
+
+    uint16_t localFnLen    = zipRead16(&localHeader[26]);
+    uint16_t localExtraLen = zipRead16(&localHeader[28]);
+    uint32_t dataOffset = entry.localHeaderOffset + 30 + localFnLen + localExtraLen;
+
+    // ---- Handle based on compression method ----
+    if (entry.compressionMethod == ZIP_METHOD_STORED) {
+      return _extractStored(dataOffset, entry.uncompressedSize, outSize);
+    }
+    else if (entry.compressionMethod == ZIP_METHOD_DEFLATED) {
+      return _extractDeflated(dataOffset, entry.compressedSize,
+                              entry.uncompressedSize, outSize);
+    }
+    else {
+      Serial.printf("ZipReader: unsupported compression method %d for %s\n",
+                    entry.compressionMethod, entry.filename);
+      return nullptr;
+    }
+  }
+
+  // ----------------------------------------------------------
+  // Extract a file entry by filename.
+  // Convenience wrapper around findEntry() + extractEntry().
+  // ----------------------------------------------------------
+  uint8_t* extractByName(const char* filename, uint32_t* outSize) {
+    int idx = findEntry(filename);
+    if (idx < 0) return nullptr;
+    return extractEntry(idx, outSize);
+  }
+
+  // ----------------------------------------------------------
+  // Check if reader is open and valid
+  // ----------------------------------------------------------
+  bool isOpen() const { return _isOpen; }
+
+  // ----------------------------------------------------------
+  // Debug: print all entries
+  // ----------------------------------------------------------
+  void printEntries() const {
+    Serial.printf("ZIP contains %d files:\n", _entryCount);
+    for (int i = 0; i < _entryCount; i++) {
+      const ZipEntry& e = _entries[i];
+      Serial.printf("  [%d] %s (%s, %u -> %u bytes)\n",
+                    i, e.filename,
+                    e.compressionMethod == 0 ? "STORED" : "DEFLATED",
+                    e.compressedSize, e.uncompressedSize);
+    }
+  }
+
+private:
+  File       _file;
+  ZipEntry*  _entries;           // Heap-allocated (PSRAM) entry table
+  int        _entryCount;
+  bool       _isOpen;
+  uint32_t   _cdOffset;
+  uint32_t   _cdSize;
+  uint16_t   _totalEntries;
+
+  // ----------------------------------------------------------
+  // Allocate buffer, preferring PSRAM if available
+  // ----------------------------------------------------------
+  void* _allocBuffer(size_t size) {
+    void* buf = nullptr;
+#ifdef BOARD_HAS_PSRAM
+    buf = ps_malloc(size);
+#endif
+    if (!buf) {
+      buf = malloc(size);
+    }
+    return buf;
+  }
+
+  // ----------------------------------------------------------
+  // Extract a STORED (uncompressed) entry
+  // ----------------------------------------------------------
+  uint8_t* _extractStored(uint32_t dataOffset, uint32_t size, uint32_t* outSize) {
+    uint8_t* buf = (uint8_t*)_allocBuffer(size + 1);  // +1 for null terminator
+    if (!buf) {
+      Serial.printf("ZipReader: failed to alloc %u bytes for stored entry\n", size);
+      return nullptr;
+    }
+
+    _file.seek(dataOffset);
+    uint32_t bytesRead = _file.read(buf, size);
+    if (bytesRead != size) {
+      Serial.printf("ZipReader: short read (got %u, expected %u)\n", bytesRead, size);
+      free(buf);
+      return nullptr;
+    }
+
+    buf[size] = '\0';  // Null-terminate for text files
+    *outSize = size;
+
+    // Release SD CS pin for other SPI users
+    digitalWrite(SDCARD_CS, HIGH);
+
+    return buf;
+  }
+
+  // ----------------------------------------------------------
+  // Extract a DEFLATED entry using ROM tinfl
+  // ----------------------------------------------------------
+  uint8_t* _extractDeflated(uint32_t dataOffset, uint32_t compSize,
+                            uint32_t uncompSize, uint32_t* outSize) {
+#if HAS_ROM_TINFL
+    // Allocate compressed data buffer (from PSRAM)
+    uint8_t* compBuf = (uint8_t*)_allocBuffer(compSize);
+    if (!compBuf) {
+      Serial.printf("ZipReader: failed to alloc %u bytes for compressed data\n", compSize);
+      return nullptr;
+    }
+
+    // Allocate output buffer (+1 for null terminator)
+    uint8_t* outBuf = (uint8_t*)_allocBuffer(uncompSize + 1);
+    if (!outBuf) {
+      Serial.printf("ZipReader: failed to alloc %u bytes for decompressed data\n", uncompSize);
+      free(compBuf);
+      return nullptr;
+    }
+
+    // Heap-allocate the decompressor (~11KB struct - too large for 8KB loopTask stack!)
+    tinfl_decompressor* decomp = (tinfl_decompressor*)_allocBuffer(sizeof(tinfl_decompressor));
+    if (!decomp) {
+      Serial.printf("ZipReader: failed to alloc tinfl_decompressor (%u bytes)\n",
+                    (uint32_t)sizeof(tinfl_decompressor));
+      free(compBuf);
+      free(outBuf);
+      return nullptr;
+    }
+
+    // Read compressed data from file
+    _file.seek(dataOffset);
+    if (_file.read(compBuf, compSize) != (int)compSize) {
+      Serial.println("ZipReader: failed to read compressed data");
+      free(decomp);
+      free(compBuf);
+      free(outBuf);
+      return nullptr;
+    }
+
+    // Release SD CS pin for other SPI users
+    digitalWrite(SDCARD_CS, HIGH);
+
+    // Decompress using ROM tinfl (low-level API to avoid stack allocation)
+    // ZIP DEFLATE is raw deflate (no zlib header).
+    tinfl_init(decomp);
+
+    size_t inBytes = compSize;
+    size_t outBytes = uncompSize;
+    tinfl_status status = tinfl_decompress(
+      decomp,
+      (const mz_uint8*)compBuf,    // compressed input
+      &inBytes,                     // in: available, out: consumed
+      outBuf,                       // output buffer base
+      outBuf,                       // current output position
+      &outBytes,                    // in: available, out: produced
+      TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF  // raw deflate, single-shot
+    );
+
+    free(decomp);
+    free(compBuf);
+
+    if (status != TINFL_STATUS_DONE) {
+      Serial.printf("ZipReader: DEFLATE failed (status %d)\n", (int)status);
+      free(outBuf);
+      return nullptr;
+    }
+
+    outBuf[outBytes] = '\0';  // Null-terminate for text files
+    *outSize = (uint32_t)outBytes;
+
+    if (outBytes != uncompSize) {
+      Serial.printf("ZipReader: decompressed %u bytes, expected %u\n",
+                    (uint32_t)outBytes, uncompSize);
+    }
+
+    return outBuf;
+
+#else
+    // No ROM tinfl available
+    Serial.println("ZipReader: DEFLATE not supported (no ROM tinfl)");
+    *outSize = 0;
+    return nullptr;
+#endif
+  }
+};
+
+// =============================================================================
+// FALLBACK NOTE:
+//
+// If the ROM tinfl includes fail to compile on your ESP32 variant, you have
+// two options:
+//
+// 1. Install lbernstone/miniz-esp32 from PlatformIO:
+//      lib_deps = https://github.com/lbernstone/miniz-esp32.git
+//    Then change the includes above to: #include <miniz.h>
+//
+// 2. Copy just the tinfl source (~550 lines) from:
+//      https://github.com/richgel999/miniz/blob/master/miniz_tinfl.c
+//    into your project. Only tinfl_decompress_mem_to_mem() is needed.
+//
+// =============================================================================

examples/companion_radio/ui-new/Epubprocessor.h

@@ -0,0 +1,888 @@
+#pragma once
+// =============================================================================
+// EpubProcessor.h - Convert EPUB files to plain text for TextReaderScreen
+//
+// Pipeline: EPUB (ZIP) → container.xml → OPF spine → extract chapters →
+//           strip XHTML tags → concatenated plain text → cached .txt on SD
+//
+// The resulting .txt file is placed in /books/ and picked up automatically
+// by TextReaderScreen's existing pagination, indexing, and bookmarking.
+//
+// Dependencies: EpubZipReader.h (for ZIP extraction)
+// =============================================================================
+
+#include <SD.h>
+#include <FS.h>
+#include "EpubZipReader.h"
+#include "Utf8CP437.h"
+
+// Maximum chapters in spine (most novels have 20-80)
+#define EPUB_MAX_CHAPTERS 200
+
+// Maximum manifest items we track
+#define EPUB_MAX_MANIFEST 256
+
+// Buffer size for reading OPF/container XML
+// (These are small files, typically 1-20KB)
+#define EPUB_XML_BUF_SIZE 64
+
+class EpubProcessor {
+public:
+
+  // ----------------------------------------------------------
+  // Process an EPUB file: extract text and write to SD cache.
+  //
+  // epubPath:  source, e.g. "/books/The Iliad.epub"
+  // txtPath:   output, e.g. "/books/The Iliad by Homer.txt"
+  //
+  // Returns true if the .txt file was written successfully.
+  // If txtPath already exists, returns true immediately (cached).
+  // ----------------------------------------------------------
+  static bool processToText(const char* epubPath, const char* txtPath) {
+    // Check if already cached
+    if (SD.exists(txtPath)) {
+      Serial.printf("EpubProc: '%s' already cached\n", txtPath);
+      return true;
+    }
+
+    Serial.printf("EpubProc: Processing '%s'\n", epubPath);
+    unsigned long t0 = millis();
+
+    // Open the EPUB (ZIP archive)
+    File epubFile = SD.open(epubPath, FILE_READ);
+    if (!epubFile) {
+      Serial.println("EpubProc: Cannot open EPUB file");
+      return false;
+    }
+
+    // Heap-allocate zip reader (entries table is ~19KB)
+    EpubZipReader* zip = new EpubZipReader();
+    if (!zip) {
+      epubFile.close();
+      Serial.println("EpubProc: Cannot allocate ZipReader");
+      return false;
+    }
+
+    if (!zip->open(epubFile)) {
+      delete zip;
+      epubFile.close();
+      Serial.println("EpubProc: Cannot parse ZIP structure");
+      return false;
+    }
+
+    // Step 1: Find OPF path from container.xml
+    char opfPath[EPUB_XML_BUF_SIZE];
+    opfPath[0] = '\0';
+    if (!_findOpfPath(zip, opfPath, sizeof(opfPath))) {
+      delete zip;
+      epubFile.close();
+      Serial.println("EpubProc: Cannot find OPF path");
+      return false;
+    }
+    Serial.printf("EpubProc: OPF at '%s'\n", opfPath);
+
+    // Determine the content base directory (e.g., "OEBPS/")
+    char baseDir[EPUB_XML_BUF_SIZE];
+    _getDirectory(opfPath, baseDir, sizeof(baseDir));
+
+    // Step 2: Parse OPF to get title and spine chapter order
+    char title[128];
+    title[0] = '\0';
+
+    // Chapter paths in spine order
+    char** chapterPaths = nullptr;
+    int chapterCount = 0;
+
+    if (!_parseOpf(zip, opfPath, baseDir, title, sizeof(title),
+                   &chapterPaths, &chapterCount)) {
+      delete zip;
+      epubFile.close();
+      Serial.println("EpubProc: Cannot parse OPF");
+      return false;
+    }
+
+    Serial.printf("EpubProc: Title='%s', %d chapters\n", title, chapterCount);
+
+    // Step 3: Extract each chapter, strip XHTML, write to output .txt
+    File outFile = SD.open(txtPath, FILE_WRITE);
+    if (!outFile) {
+      _freeChapterPaths(chapterPaths, chapterCount);
+      delete zip;
+      epubFile.close();
+      Serial.printf("EpubProc: Cannot create '%s'\n", txtPath);
+      return false;
+    }
+
+    // Write title as first line
+    if (title[0]) {
+      outFile.println(title);
+      outFile.println();
+    }
+
+    int chaptersWritten = 0;
+    uint32_t totalBytes = 0;
+
+    for (int i = 0; i < chapterCount; i++) {
+      int entryIdx = zip->findEntry(chapterPaths[i]);
+      if (entryIdx < 0) {
+        Serial.printf("EpubProc: Chapter not found: '%s'\n", chapterPaths[i]);
+        continue;
+      }
+
+      uint32_t rawSize = 0;
+      uint8_t* rawData = zip->extractEntry(entryIdx, &rawSize);
+      if (!rawData || rawSize == 0) {
+        Serial.printf("EpubProc: Failed to extract chapter %d\n", i);
+        if (rawData) free(rawData);
+        continue;
+      }
+
+      // Strip XHTML tags and write plain text
+      uint32_t textLen = 0;
+      uint8_t* plainText = _stripXhtml(rawData, rawSize, &textLen);
+      free(rawData);
+
+      if (plainText && textLen > 0) {
+        outFile.write(plainText, textLen);
+        // Add chapter separator
+        outFile.print("\n\n");
+        totalBytes += textLen + 2;
+        chaptersWritten++;
+      }
+      if (plainText) free(plainText);
+    }
+
+    outFile.flush();
+    outFile.close();
+
+    // Release SD CS for other SPI users
+    digitalWrite(SDCARD_CS, HIGH);
+
+    _freeChapterPaths(chapterPaths, chapterCount);
+    delete zip;
+    epubFile.close();
+
+    unsigned long elapsed = millis() - t0;
+    Serial.printf("EpubProc: Done! %d chapters, %u bytes in %lu ms -> '%s'\n",
+                  chaptersWritten, totalBytes, elapsed, txtPath);
+
+    return chaptersWritten > 0;
+  }
+
+  // ----------------------------------------------------------
+  // Extract just the title from an EPUB (for display in file list).
+  // Returns false if it can't be determined.
+  // ----------------------------------------------------------
+  static bool getTitle(const char* epubPath, char* titleBuf, int titleBufSize) {
+    File epubFile = SD.open(epubPath, FILE_READ);
+    if (!epubFile) return false;
+
+    EpubZipReader* zip = new EpubZipReader();
+    if (!zip) { epubFile.close(); return false; }
+
+    if (!zip->open(epubFile)) {
+      delete zip; epubFile.close(); return false;
+    }
+
+    char opfPath[EPUB_XML_BUF_SIZE];
+    if (!_findOpfPath(zip, opfPath, sizeof(opfPath))) {
+      delete zip; epubFile.close(); return false;
+    }
+
+    // Extract OPF and find <dc:title>
+    int opfIdx = zip->findEntry(opfPath);
+    if (opfIdx < 0) { delete zip; epubFile.close(); return false; }
+
+    uint32_t opfSize = 0;
+    uint8_t* opfData = zip->extractEntry(opfIdx, &opfSize);
+    delete zip;
+    epubFile.close();
+
+    if (!opfData) return false;
+
+    bool found = _extractTagContent((const char*)opfData, opfSize,
+                                     "dc:title", titleBuf, titleBufSize);
+    free(opfData);
+    return found;
+  }
+
+  // ----------------------------------------------------------
+  // Build a cache .txt path from an .epub path.
+  // e.g., "/books/mybook.epub" -> "/books/.epub_cache/mybook.txt"
+  // ----------------------------------------------------------
+  static void buildCachePath(const char* epubPath, char* cachePath, int cachePathSize) {
+    // Extract filename without extension
+    const char* lastSlash = strrchr(epubPath, '/');
+    const char* filename = lastSlash ? lastSlash + 1 : epubPath;
+    
+    // Find the directory part
+    char dir[128];
+    if (lastSlash) {
+      int dirLen = lastSlash - epubPath;
+      if (dirLen >= (int)sizeof(dir)) dirLen = sizeof(dir) - 1;
+      strncpy(dir, epubPath, dirLen);
+      dir[dirLen] = '\0';
+    } else {
+      strcpy(dir, "/books");
+    }
+
+    // Create cache directory if needed
+    char cacheDir[160];
+    snprintf(cacheDir, sizeof(cacheDir), "%s/.epub_cache", dir);
+    if (!SD.exists(cacheDir)) {
+      SD.mkdir(cacheDir);
+    }
+
+    // Strip .epub extension
+    char baseName[128];
+    strncpy(baseName, filename, sizeof(baseName) - 1);
+    baseName[sizeof(baseName) - 1] = '\0';
+    char* dot = strrchr(baseName, '.');
+    if (dot) *dot = '\0';
+
+    snprintf(cachePath, cachePathSize, "%s/%s.txt", cacheDir, baseName);
+  }
+
+private:
+
+  // ----------------------------------------------------------
+  // Parse container.xml to find the OPF file path.
+  // Returns true if found.
+  // ----------------------------------------------------------
+  static bool _findOpfPath(EpubZipReader* zip, char* opfPath, int opfPathSize) {
+    int idx = zip->findEntry("META-INF/container.xml");
+    if (idx < 0) {
+      // Fallback: find any .opf file directly
+      idx = zip->findEntryBySuffix(".opf");
+      if (idx >= 0) {
+        const ZipEntry* e = zip->getEntry(idx);
+        strncpy(opfPath, e->filename, opfPathSize - 1);
+        opfPath[opfPathSize - 1] = '\0';
+        return true;
+      }
+      return false;
+    }
+
+    uint32_t size = 0;
+    uint8_t* data = zip->extractEntry(idx, &size);
+    if (!data) return false;
+
+    // Find: full-path="OEBPS/content.opf"
+    bool found = _extractAttribute((const char*)data, size,
+                                    "full-path", opfPath, opfPathSize);
+    free(data);
+    return found;
+  }
+
+  // ----------------------------------------------------------
+  // Parse OPF to extract title, build manifest, and resolve spine.
+  //
+  // Populates chapterPaths (heap-allocated array of strings) with
+  // full ZIP paths for each chapter in spine order.
+  // Caller must free with _freeChapterPaths().
+  // ----------------------------------------------------------
+  static bool _parseOpf(EpubZipReader* zip, const char* opfPath,
+                         const char* baseDir, char* title, int titleSize,
+                         char*** outChapterPaths, int* outChapterCount) {
+    int opfIdx = zip->findEntry(opfPath);
+    if (opfIdx < 0) return false;
+
+    uint32_t opfSize = 0;
+    uint8_t* opfData = zip->extractEntry(opfIdx, &opfSize);
+    if (!opfData) return false;
+
+    const char* xml = (const char*)opfData;
+
+    // Extract title
+    _extractTagContent(xml, opfSize, "dc:title", title, titleSize);
+
+    // Build manifest: map id -> href
+    // We use two parallel arrays to avoid complex data structures
+    struct ManifestItem {
+      char id[64];
+      char href[128];
+      bool isContent;  // has media-type containing "html" or "xml"
+    };
+
+    // Heap-allocate manifest (could be large)
+    ManifestItem* manifest = (ManifestItem*)ps_malloc(
+        EPUB_MAX_MANIFEST * sizeof(ManifestItem));
+    if (!manifest) {
+      manifest = (ManifestItem*)malloc(EPUB_MAX_MANIFEST * sizeof(ManifestItem));
+    }
+    if (!manifest) {
+      free(opfData);
+      return false;
+    }
+    int manifestCount = 0;
+
+    // Parse <item> elements from <manifest>
+    const char* manifestStart = _findTag(xml, opfSize, "<manifest");
+    const char* manifestEnd = manifestStart ?
+        _findTag(manifestStart, opfSize - (manifestStart - xml), "</manifest") : nullptr;
+    if (!manifestEnd) manifestEnd = xml + opfSize;
+
+    if (manifestStart) {
+      const char* pos = manifestStart;
+      while (pos < manifestEnd && manifestCount < EPUB_MAX_MANIFEST) {
+        pos = _findTag(pos, manifestEnd - pos, "<item");
+        if (!pos || pos >= manifestEnd) break;
+
+        // Find the closing > of this <item ... />
+        const char* tagEnd = (const char*)memchr(pos, '>', manifestEnd - pos);
+        if (!tagEnd) break;
+        tagEnd++;
+
+        ManifestItem& item = manifest[manifestCount];
+        item.id[0] = '\0';
+        item.href[0] = '\0';
+        item.isContent = false;
+
+        _extractAttributeFromTag(pos, tagEnd - pos, "id",
+                                  item.id, sizeof(item.id));
+        _extractAttributeFromTag(pos, tagEnd - pos, "href",
+                                  item.href, sizeof(item.href));
+
+        // Check media-type for content files
+        char mediaType[64];
+        mediaType[0] = '\0';
+        _extractAttributeFromTag(pos, tagEnd - pos, "media-type",
+                                  mediaType, sizeof(mediaType));
+        item.isContent = (strstr(mediaType, "html") != nullptr ||
+                          strstr(mediaType, "xml") != nullptr);
+
+        if (item.id[0] && item.href[0]) {
+          manifestCount++;
+        }
+
+        pos = tagEnd;
+      }
+    }
+
+    Serial.printf("EpubProc: Manifest has %d items\n", manifestCount);
+
+    // Parse <spine> to get reading order
+    // Spine contains <itemref idref="..."/> elements
+    const char* spineStart = _findTag(xml, opfSize, "<spine");
+    const char* spineEnd = spineStart ?
+        _findTag(spineStart, opfSize - (spineStart - xml), "</spine") : nullptr;
+    if (!spineEnd) spineEnd = xml + opfSize;
+
+    // Collect spine idrefs
+    char** chapterPaths = (char**)ps_malloc(EPUB_MAX_CHAPTERS * sizeof(char*));
+    if (!chapterPaths) chapterPaths = (char**)malloc(EPUB_MAX_CHAPTERS * sizeof(char*));
+    if (!chapterPaths) {
+      free(manifest);
+      free(opfData);
+      return false;
+    }
+    int chapterCount = 0;
+
+    if (spineStart) {
+      const char* pos = spineStart;
+      while (pos < spineEnd && chapterCount < EPUB_MAX_CHAPTERS) {
+        pos = _findTag(pos, spineEnd - pos, "<itemref");
+        if (!pos || pos >= spineEnd) break;
+
+        const char* tagEnd = (const char*)memchr(pos, '>', spineEnd - pos);
+        if (!tagEnd) break;
+        tagEnd++;
+
+        char idref[64];
+        idref[0] = '\0';
+        _extractAttributeFromTag(pos, tagEnd - pos, "idref",
+                                  idref, sizeof(idref));
+
+        if (idref[0]) {
+          // Look up in manifest
+          for (int m = 0; m < manifestCount; m++) {
+            if (strcmp(manifest[m].id, idref) == 0 && manifest[m].isContent) {
+              // Build full path: baseDir + href
+              int pathLen = strlen(baseDir) + strlen(manifest[m].href) + 1;
+              char* fullPath = (char*)malloc(pathLen);
+              if (fullPath) {
+                snprintf(fullPath, pathLen, "%s%s", baseDir, manifest[m].href);
+                chapterPaths[chapterCount++] = fullPath;
+              }
+              break;
+            }
+          }
+        }
+
+        pos = tagEnd;
+      }
+    }
+
+    free(manifest);
+    free(opfData);
+
+    *outChapterPaths = chapterPaths;
+    *outChapterCount = chapterCount;
+
+    return chapterCount > 0;
+  }
+
+  // ----------------------------------------------------------
+  // Strip XHTML/HTML tags from raw content, producing plain text.
+  //
+  // Handles:
+  //   - Tag removal (everything between < and >)
+  //   - <p>, <br>, <div>, <h1>-<h6> → newlines
+  //   - HTML entity decoding (&amp; &lt; &gt; &quot; &apos; &#NNN; &#xHH;)
+  //   - Collapse multiple whitespace/newlines
+  //   - Skip <head>, <style>, <script> content entirely
+  //
+  // Returns heap-allocated buffer (caller must free).
+  // ----------------------------------------------------------
+  static uint8_t* _stripXhtml(const uint8_t* input, uint32_t inputLen,
+                               uint32_t* outLen) {
+    // Output can't be larger than input
+    uint8_t* output = (uint8_t*)ps_malloc(inputLen + 1);
+    if (!output) output = (uint8_t*)malloc(inputLen + 1);
+    if (!output) { *outLen = 0; return nullptr; }
+
+    uint32_t outPos = 0;
+    bool inTag = false;
+    bool skipContent = false;  // Inside <head>, <style>, <script>
+    char tagName[32];
+    int tagNamePos = 0;
+    bool tagNameDone = false;
+    bool isClosingTag = false;
+    bool lastWasNewline = false;
+    bool lastWasSpace = false;
+
+    // Skip to <body> if present (ignore everything before it)
+    const uint8_t* start = input;
+    const uint8_t* inputEnd = input + inputLen;
+    const char* bodyStart = _findTagCI((const char*)input, inputLen, "<body");
+    if (bodyStart) {
+      const char* bodyTagEnd = (const char*)memchr(bodyStart, '>', 
+          inputEnd - (const uint8_t*)bodyStart);
+      if (bodyTagEnd) {
+        start = (const uint8_t*)(bodyTagEnd + 1);
+      }
+    }
+    const uint8_t* end = inputEnd;
+
+    for (const uint8_t* p = start; p < end; p++) {
+      char c = (char)*p;
+
+      if (inTag) {
+        // Collecting tag name
+        if (!tagNameDone) {
+          if (tagNamePos == 0 && c == '/') {
+            isClosingTag = true;
+            continue;
+          }
+          if (c == '>' || c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '/') {
+            tagName[tagNamePos] = '\0';
+            tagNameDone = true;
+          } else if (tagNamePos < (int)sizeof(tagName) - 1) {
+            tagName[tagNamePos++] = (c >= 'A' && c <= 'Z') ? (c + 32) : c;
+          }
+        }
+
+        if (c == '>') {
+          inTag = false;
+
+          // Handle skip regions
+          if (!isClosingTag) {
+            if (strcmp(tagName, "head") == 0 ||
+                strcmp(tagName, "style") == 0 ||
+                strcmp(tagName, "script") == 0) {
+              skipContent = true;
+            }
+          } else {
+            if (strcmp(tagName, "head") == 0 ||
+                strcmp(tagName, "style") == 0 ||
+                strcmp(tagName, "script") == 0) {
+              skipContent = false;
+            }
+          }
+
+          if (!skipContent) {
+            // Block-level elements produce newlines
+            if (strcmp(tagName, "p") == 0 ||
+                strcmp(tagName, "div") == 0 ||
+                strcmp(tagName, "br") == 0 ||
+                strcmp(tagName, "h1") == 0 ||
+                strcmp(tagName, "h2") == 0 ||
+                strcmp(tagName, "h3") == 0 ||
+                strcmp(tagName, "h4") == 0 ||
+                strcmp(tagName, "h5") == 0 ||
+                strcmp(tagName, "h6") == 0 ||
+                strcmp(tagName, "li") == 0 ||
+                strcmp(tagName, "tr") == 0 ||
+                strcmp(tagName, "blockquote") == 0 ||
+                strcmp(tagName, "hr") == 0) {
+              if (outPos > 0 && !lastWasNewline) {
+                output[outPos++] = '\n';
+                lastWasNewline = true;
+                lastWasSpace = false;
+              }
+            }
+          }
+
+          continue;
+        }
+        continue;
+      }
+
+      // Not in a tag
+      if (c == '<') {
+        inTag = true;
+        tagNamePos = 0;
+        tagNameDone = false;
+        isClosingTag = false;
+        continue;
+      }
+
+      if (skipContent) continue;
+
+      // Handle HTML entities
+      if (c == '&') {
+        char decoded = _decodeEntity(p, end, &p);
+        if (decoded) {
+          c = decoded;
+          // p now points to the ';' or last char of entity; loop will increment
+        }
+      }
+
+      // Handle UTF-8 multi-byte sequences (smart quotes, em dashes, accented chars, etc.)
+      // These appear as raw bytes in XHTML. Typographic chars are mapped to ASCII;
+      // accented Latin chars are preserved as UTF-8 for CP437 rendering on e-ink.
+      if ((uint8_t)c >= 0xC0) {
+        uint32_t codepoint = 0;
+        int extraBytes = 0;
+
+        if (((uint8_t)c & 0xE0) == 0xC0) {
+          // 2-byte sequence: 110xxxxx 10xxxxxx
+          codepoint = (uint8_t)c & 0x1F;
+          extraBytes = 1;
+        } else if (((uint8_t)c & 0xF0) == 0xE0) {
+          // 3-byte sequence: 1110xxxx 10xxxxxx 10xxxxxx
+          codepoint = (uint8_t)c & 0x0F;
+          extraBytes = 2;
+        } else if (((uint8_t)c & 0xF8) == 0xF0) {
+          // 4-byte sequence: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+          codepoint = (uint8_t)c & 0x07;
+          extraBytes = 3;
+        }
+
+        // Read continuation bytes
+        bool valid = true;
+        for (int b = 0; b < extraBytes && p + 1 + b < end; b++) {
+          uint8_t cb = *(p + 1 + b);
+          if ((cb & 0xC0) != 0x80) { valid = false; break; }
+          codepoint = (codepoint << 6) | (cb & 0x3F);
+        }
+
+        if (valid && extraBytes > 0) {
+          p += extraBytes;  // Skip continuation bytes (loop increments past lead byte)
+
+          // Map Unicode codepoints to displayable equivalents
+          // Typographic chars → ASCII, accented chars → preserved as UTF-8
+          char mapped = 0;
+          switch (codepoint) {
+            case 0x2018: case 0x2019: mapped = '\''; break;  // Smart single quotes
+            case 0x201C: case 0x201D: mapped = '"';  break;  // Smart double quotes
+            case 0x2013: case 0x2014: mapped = '-';  break;  // En/em dash
+            case 0x2026:             mapped = '.';  break;  // Ellipsis
+            case 0x2022:             mapped = '*';  break;  // Bullet
+            case 0x00A0:             mapped = ' ';  break;  // Non-breaking space
+            case 0x00AB: case 0x00BB: mapped = '"'; break;  // Guillemets
+            case 0x2032:             mapped = '\''; break;  // Prime
+            case 0x2033:             mapped = '"';  break;  // Double prime
+            case 0x2010: case 0x2011: mapped = '-'; break;  // Hyphens
+            case 0x2012:             mapped = '-';  break;  // Figure dash
+            case 0x2015:             mapped = '-';  break;  // Horizontal bar
+            case 0x2039: case 0x203A: mapped = '\''; break; // Single guillemets
+            default:
+              if (codepoint >= 0x20 && codepoint < 0x7F) {
+                mapped = (char)codepoint;  // Basic ASCII range
+              } else if (unicodeToCP437(codepoint)) {
+                // Accented character that the e-ink font can render via CP437.
+                // Preserve as UTF-8 in the output; the text reader will decode
+                // and map to CP437 at render time.
+                if (codepoint <= 0x7FF) {
+                  output[outPos++] = 0xC0 | (codepoint >> 6);
+                  output[outPos++] = 0x80 | (codepoint & 0x3F);
+                } else if (codepoint <= 0xFFFF) {
+                  output[outPos++] = 0xE0 | (codepoint >> 12);
+                  output[outPos++] = 0x80 | ((codepoint >> 6) & 0x3F);
+                  output[outPos++] = 0x80 | (codepoint & 0x3F);
+                }
+                lastWasNewline = false;
+                lastWasSpace = false;
+                continue;  // Already wrote to output
+              } else {
+                continue;  // Skip unmappable characters
+              }
+              break;
+          }
+          c = mapped;
+        } else {
+          continue;  // Skip malformed UTF-8
+        }
+      } else if ((uint8_t)c >= 0x80) {
+        // Stray continuation byte (0x80-0xBF) — skip
+        continue;
+      }
+
+      // Whitespace collapsing
+      if (c == '\n' || c == '\r') {
+        if (!lastWasNewline && outPos > 0) {
+          output[outPos++] = '\n';
+          lastWasNewline = true;
+          lastWasSpace = false;
+        }
+        continue;
+      }
+
+      if (c == ' ' || c == '\t') {
+        if (!lastWasSpace && !lastWasNewline && outPos > 0) {
+          output[outPos++] = ' ';
+          lastWasSpace = true;
+        }
+        continue;
+      }
+
+      // Regular character
+      output[outPos++] = c;
+      lastWasNewline = false;
+      lastWasSpace = false;
+    }
+
+    // Trim trailing whitespace
+    while (outPos > 0 && (output[outPos-1] == '\n' || output[outPos-1] == ' ')) {
+      outPos--;
+    }
+
+    output[outPos] = '\0';
+    *outLen = outPos;
+    return output;
+  }
+
+  // ----------------------------------------------------------
+  // Decode an HTML entity starting at '&'.
+  // Advances *pos to the last character consumed.
+  // Returns the decoded character, or '&' if not recognized.
+  // ----------------------------------------------------------
+  static char _decodeEntity(const uint8_t* p, const uint8_t* end,
+                             const uint8_t** outPos) {
+    // Look for ';' within a reasonable range
+    const uint8_t* semi = p + 1;
+    int maxLen = 10;
+    while (semi < end && semi < p + maxLen && *semi != ';') semi++;
+
+    if (*semi != ';' || semi >= end) {
+      *outPos = p;  // Not an entity, return '&' literal
+      return '&';
+    }
+
+    int entityLen = semi - p - 1;  // Length between & and ;
+    const char* entity = (const char*)(p + 1);
+
+    *outPos = semi;  // Skip past ';'
+
+    // Named entities
+    if (entityLen == 3 && strncmp(entity, "amp", 3) == 0) return '&';
+    if (entityLen == 2 && strncmp(entity, "lt", 2) == 0) return '<';
+    if (entityLen == 2 && strncmp(entity, "gt", 2) == 0) return '>';
+    if (entityLen == 4 && strncmp(entity, "quot", 4) == 0) return '"';
+    if (entityLen == 4 && strncmp(entity, "apos", 4) == 0) return '\'';
+    if (entityLen == 4 && strncmp(entity, "nbsp", 4) == 0) return ' ';
+    if (entityLen == 5 && strncmp(entity, "mdash", 5) == 0) return '-';
+    if (entityLen == 5 && strncmp(entity, "ndash", 5) == 0) return '-';
+    if (entityLen == 6 && strncmp(entity, "hellip", 6) == 0) return '.';
+    if (entityLen == 5 && strncmp(entity, "lsquo", 5) == 0) return '\'';
+    if (entityLen == 5 && strncmp(entity, "rsquo", 5) == 0) return '\'';
+    if (entityLen == 5 && strncmp(entity, "ldquo", 5) == 0) return '"';
+    if (entityLen == 5 && strncmp(entity, "rdquo", 5) == 0) return '"';
+
+    // Common accented character entities → CP437 bytes for built-in font
+    if (entityLen == 6 && strncmp(entity, "eacute", 6) == 0) return (char)0x82;  // é
+    if (entityLen == 6 && strncmp(entity, "egrave", 6) == 0) return (char)0x8A;  // è
+    if (entityLen == 5 && strncmp(entity, "ecirc", 5) == 0) return (char)0x88;   // ê
+    if (entityLen == 4 && strncmp(entity, "euml", 4) == 0) return (char)0x89;    // ë
+    if (entityLen == 6 && strncmp(entity, "agrave", 6) == 0) return (char)0x85;  // à
+    if (entityLen == 6 && strncmp(entity, "aacute", 6) == 0) return (char)0xA0;  // á
+    if (entityLen == 5 && strncmp(entity, "acirc", 5) == 0) return (char)0x83;   // â
+    if (entityLen == 4 && strncmp(entity, "auml", 4) == 0) return (char)0x84;    // ä
+    if (entityLen == 6 && strncmp(entity, "ccedil", 6) == 0) return (char)0x87;  // ç
+    if (entityLen == 6 && strncmp(entity, "iacute", 6) == 0) return (char)0xA1;  // í
+    if (entityLen == 5 && strncmp(entity, "icirc", 5) == 0) return (char)0x8C;   // î
+    if (entityLen == 4 && strncmp(entity, "iuml", 4) == 0) return (char)0x8B;    // ï
+    if (entityLen == 6 && strncmp(entity, "igrave", 6) == 0) return (char)0x8D;  // ì
+    if (entityLen == 6 && strncmp(entity, "oacute", 6) == 0) return (char)0xA2;  // ó
+    if (entityLen == 5 && strncmp(entity, "ocirc", 5) == 0) return (char)0x93;   // ô
+    if (entityLen == 4 && strncmp(entity, "ouml", 4) == 0) return (char)0x94;    // ö
+    if (entityLen == 6 && strncmp(entity, "ograve", 6) == 0) return (char)0x95;  // ò
+    if (entityLen == 6 && strncmp(entity, "uacute", 6) == 0) return (char)0xA3;  // ú
+    if (entityLen == 5 && strncmp(entity, "ucirc", 5) == 0) return (char)0x96;   // û
+    if (entityLen == 4 && strncmp(entity, "uuml", 4) == 0) return (char)0x81;    // ü
+    if (entityLen == 6 && strncmp(entity, "ugrave", 6) == 0) return (char)0x97;  // ù
+    if (entityLen == 6 && strncmp(entity, "ntilde", 6) == 0) return (char)0xA4;  // ñ
+    if (entityLen == 6 && strncmp(entity, "Eacute", 6) == 0) return (char)0x90;  // É
+    if (entityLen == 6 && strncmp(entity, "Ccedil", 6) == 0) return (char)0x80;  // Ç
+    if (entityLen == 6 && strncmp(entity, "Ntilde", 6) == 0) return (char)0xA5;  // Ñ
+    if (entityLen == 4 && strncmp(entity, "Auml", 4) == 0) return (char)0x8E;    // Ä
+    if (entityLen == 4 && strncmp(entity, "Ouml", 4) == 0) return (char)0x99;    // Ö
+    if (entityLen == 4 && strncmp(entity, "Uuml", 4) == 0) return (char)0x9A;    // Ü
+    if (entityLen == 5 && strncmp(entity, "szlig", 5) == 0) return (char)0xE1;   // ß
+
+    // Numeric entities: &#NNN; or &#xHH;
+    if (entityLen >= 2 && entity[0] == '#') {
+      int codepoint = 0;
+      if (entity[1] == 'x' || entity[1] == 'X') {
+        // Hex
+        for (int i = 2; i < entityLen; i++) {
+          char ch = entity[i];
+          if (ch >= '0' && ch <= '9') codepoint = codepoint * 16 + (ch - '0');
+          else if (ch >= 'a' && ch <= 'f') codepoint = codepoint * 16 + (ch - 'a' + 10);
+          else if (ch >= 'A' && ch <= 'F') codepoint = codepoint * 16 + (ch - 'A' + 10);
+        }
+      } else {
+        // Decimal
+        for (int i = 1; i < entityLen; i++) {
+          char ch = entity[i];
+          if (ch >= '0' && ch <= '9') codepoint = codepoint * 10 + (ch - '0');
+        }
+      }
+      // Map to displayable character (best effort)
+      if (codepoint >= 32 && codepoint < 127) return (char)codepoint;
+      if (codepoint == 160) return ' ';   // non-breaking space
+      // Try CP437 mapping for accented characters.
+      // The byte value will be passed through to the built-in font.
+      uint8_t cp437 = unicodeToCP437(codepoint);
+      if (cp437) return (char)cp437;
+      // Unknown codepoint > 127: skip it
+      return ' ';
+    }
+
+    // Unknown entity - output as space
+    return ' ';
+  }
+
+  // ----------------------------------------------------------
+  // Find a tag in XML data (case-sensitive, e.g., "<manifest").
+  // Returns pointer to '<' of found tag, or nullptr.
+  // ----------------------------------------------------------
+  static const char* _findTag(const char* data, int dataLen, const char* tag) {
+    int tagLen = strlen(tag);
+    const char* end = data + dataLen - tagLen;
+    for (const char* p = data; p <= end; p++) {
+      if (memcmp(p, tag, tagLen) == 0) return p;
+    }
+    return nullptr;
+  }
+
+  // ----------------------------------------------------------
+  // Find a tag case-insensitively (for <body>, <BODY>, etc.).
+  // ----------------------------------------------------------
+  static const char* _findTagCI(const char* data, int dataLen, const char* tag) {
+    int tagLen = strlen(tag);
+    const char* end = data + dataLen - tagLen;
+    for (const char* p = data; p <= end; p++) {
+      if (strncasecmp(p, tag, tagLen) == 0) return p;
+    }
+    return nullptr;
+  }
+
+  // ----------------------------------------------------------
+  // Extract an attribute value from a region of XML.
+  // Scans for attr="value" and copies value to outBuf.
+  // ----------------------------------------------------------
+  static bool _extractAttribute(const char* data, int dataLen,
+                                 const char* attrName, char* outBuf, int outBufSize) {
+    int nameLen = strlen(attrName);
+    const char* end = data + dataLen;
+    for (const char* p = data; p < end - nameLen - 2; p++) {
+      if (strncmp(p, attrName, nameLen) == 0 && p[nameLen] == '=') {
+        p += nameLen + 1;
+        char quote = *p;
+        if (quote != '"' && quote != '\'') continue;
+        p++;
+        const char* valEnd = (const char*)memchr(p, quote, end - p);
+        if (!valEnd) continue;
+        int valLen = valEnd - p;
+        if (valLen >= outBufSize) valLen = outBufSize - 1;
+        memcpy(outBuf, p, valLen);
+        outBuf[valLen] = '\0';
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // ----------------------------------------------------------
+  // Extract an attribute value from within a single tag string.
+  // (More targeted version for parsing <item id="x" href="y"/>)
+  // ----------------------------------------------------------
+  static bool _extractAttributeFromTag(const char* tag, int tagLen,
+                                        const char* attrName,
+                                        char* outBuf, int outBufSize) {
+    return _extractAttribute(tag, tagLen, attrName, outBuf, outBufSize);
+  }
+
+  // ----------------------------------------------------------
+  // Extract text content between <tagName>...</tagName>.
+  // Works for simple cases like <dc:title>The Iliad</dc:title>.
+  // ----------------------------------------------------------
+  static bool _extractTagContent(const char* data, int dataLen,
+                                  const char* tagName, char* outBuf, int outBufSize) {
+    // Build open tag pattern: "<dc:title" (without >)
+    char openTag[64];
+    snprintf(openTag, sizeof(openTag), "<%s", tagName);
+
+    const char* start = _findTag(data, dataLen, openTag);
+    if (!start) return false;
+
+    // Find the > that closes the opening tag
+    const char* end = data + dataLen;
+    const char* contentStart = (const char*)memchr(start, '>', end - start);
+    if (!contentStart) return false;
+    contentStart++;  // Skip past '>'
+
+    // Find closing tag
+    char closeTag[64];
+    snprintf(closeTag, sizeof(closeTag), "</%s>", tagName);
+    const char* contentEnd = _findTag(contentStart, end - contentStart, closeTag);
+    if (!contentEnd) return false;
+
+    int len = contentEnd - contentStart;
+    if (len >= outBufSize) len = outBufSize - 1;
+    memcpy(outBuf, contentStart, len);
+    outBuf[len] = '\0';
+    return true;
+  }
+
+  // ----------------------------------------------------------
+  // Get directory portion of a path.
+  // "OEBPS/content.opf" -> "OEBPS/"
+  // "content.opf" -> ""
+  // ----------------------------------------------------------
+  static void _getDirectory(const char* path, char* dirBuf, int dirBufSize) {
+    const char* lastSlash = strrchr(path, '/');
+    if (lastSlash) {
+      int len = lastSlash - path + 1;  // Include trailing /
+      if (len >= dirBufSize) len = dirBufSize - 1;
+      memcpy(dirBuf, path, len);
+      dirBuf[len] = '\0';
+    } else {
+      dirBuf[0] = '\0';
+    }
+  }
+
+  // ----------------------------------------------------------
+  // Free the chapter paths array allocated by _parseOpf().
+  // ----------------------------------------------------------
+  static void _freeChapterPaths(char** paths, int count) {
+    if (paths) {
+      for (int i = 0; i < count; i++) {
+        if (paths[i]) free(paths[i]);
+      }
+      free(paths);
+    }
+  }
+};

examples/companion_radio/ui-new/M4BMetadata.h

@@ -0,0 +1,651 @@
+#pragma once
+
+// =============================================================================
+// M4BMetadata.h - Lightweight MP4/M4B atom parser for metadata extraction
+//
+// Walks the MP4 atom (box) tree to extract:
+//   - Title     (moov/udta/meta/ilst/©nam)
+//   - Author    (moov/udta/meta/ilst/©ART)
+//   - Cover art (moov/udta/meta/ilst/covr) - JPEG offset+size within file
+//   - Duration  (moov/mvhd timescale + duration)
+//   - Chapter markers (moov/udta/chpl) - Nero-style chapter list
+//
+// Designed for embedded use: no dynamic allocation, reads directly from SD
+// via Arduino File API, uses a small stack buffer for atom headers.
+//
+// Usage:
+//   M4BMetadata meta;
+//   File f = SD.open("/audiobooks/mybook.m4b");
+//   if (meta.parse(f)) {
+//     Serial.printf("Title: %s\n", meta.title);
+//     Serial.printf("Author: %s\n", meta.author);
+//     if (meta.hasCoverArt) {
+//       // JPEG data is at meta.coverOffset, meta.coverSize bytes
+//     }
+//   }
+//   f.close();
+// =============================================================================
+
+#include <SD.h>
+
+// Maximum metadata string lengths (including null terminator)
+#define M4B_MAX_TITLE    128
+#define M4B_MAX_AUTHOR   64
+#define M4B_MAX_CHAPTERS 100
+
+struct M4BChapter {
+  uint32_t startMs;    // Chapter start time in milliseconds
+  char     name[48];   // Chapter title (truncated to fit)
+};
+
+class M4BMetadata {
+public:
+  // Extracted metadata
+  char     title[M4B_MAX_TITLE];
+  char     author[M4B_MAX_AUTHOR];
+  bool     hasCoverArt;
+  uint32_t coverOffset;   // Byte offset of JPEG/PNG data within file
+  uint32_t coverSize;     // Size of cover image data in bytes
+  uint8_t  coverFormat;   // 13=JPEG, 14=PNG (from MP4 well-known type)
+  uint32_t durationMs;    // Total duration in milliseconds
+  uint32_t sampleRate;    // Audio sample rate (from audio stsd)
+  uint32_t bitrate;       // Approximate bitrate in bps
+
+  // Chapter data
+  M4BChapter chapters[M4B_MAX_CHAPTERS];
+  int        chapterCount;
+
+  M4BMetadata() { clear(); }
+
+  void clear() {
+    title[0] = '\0';
+    author[0] = '\0';
+    hasCoverArt = false;
+    coverOffset = 0;
+    coverSize = 0;
+    coverFormat = 0;
+    durationMs = 0;
+    sampleRate = 44100;
+    bitrate = 0;
+    chapterCount = 0;
+  }
+
+  // Parse an open file. Returns true if at least title or duration was found.
+  // File position is NOT preserved — caller should seek as needed afterward.
+  bool parse(File& file) {
+    clear();
+    if (!file || file.size() < 8) return false;
+
+    _fileSize = file.size();
+
+    // Walk top-level atoms looking for 'moov'
+    uint32_t pos = 0;
+    while (pos < _fileSize) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      if (hdr.type == ATOM_MOOV) {
+        parseMoov(file, hdr.dataOffset, hdr.dataOffset + hdr.dataSize);
+        break;  // moov found and parsed, we're done
+      }
+
+      // Skip to next top-level atom
+      pos += hdr.size;
+      if (hdr.size == 0) break;  // size=0 means "extends to EOF"
+    }
+
+    return (title[0] != '\0' || durationMs > 0);
+  }
+
+  // Get chapter index for a given playback position (milliseconds).
+  // Returns -1 if no chapters or position is before first chapter.
+  int getChapterForPosition(uint32_t positionMs) const {
+    if (chapterCount == 0) return -1;
+    int ch = 0;
+    for (int i = 1; i < chapterCount; i++) {
+      if (chapters[i].startMs > positionMs) break;
+      ch = i;
+    }
+    return ch;
+  }
+
+  // Get the start position of the next chapter after the given position.
+  // Returns 0 if no next chapter.
+  uint32_t getNextChapterMs(uint32_t positionMs) const {
+    for (int i = 0; i < chapterCount; i++) {
+      if (chapters[i].startMs > positionMs) return chapters[i].startMs;
+    }
+    return 0;
+  }
+
+  // Get the start position of the current or previous chapter.
+  uint32_t getPrevChapterMs(uint32_t positionMs) const {
+    uint32_t prev = 0;
+    for (int i = 0; i < chapterCount; i++) {
+      if (chapters[i].startMs >= positionMs) break;
+      prev = chapters[i].startMs;
+    }
+    return prev;
+  }
+
+private:
+  uint32_t _fileSize;
+
+  // MP4 atom type codes (big-endian FourCC)
+  static constexpr uint32_t ATOM_MOOV = 0x6D6F6F76;  // 'moov'
+  static constexpr uint32_t ATOM_MVHD = 0x6D766864;  // 'mvhd'
+  static constexpr uint32_t ATOM_UDTA = 0x75647461;  // 'udta'
+  static constexpr uint32_t ATOM_META = 0x6D657461;  // 'meta'
+  static constexpr uint32_t ATOM_ILST = 0x696C7374;  // 'ilst'
+  static constexpr uint32_t ATOM_NAM  = 0xA96E616D;  // '©nam'
+  static constexpr uint32_t ATOM_ART  = 0xA9415254;  // '©ART'
+  static constexpr uint32_t ATOM_COVR = 0x636F7672;  // 'covr'
+  static constexpr uint32_t ATOM_DATA = 0x64617461;  // 'data'
+  static constexpr uint32_t ATOM_CHPL = 0x6368706C;  // 'chpl' (Nero chapters)
+  static constexpr uint32_t ATOM_TRAK = 0x7472616B;  // 'trak'
+  static constexpr uint32_t ATOM_MDIA = 0x6D646961;  // 'mdia'
+  static constexpr uint32_t ATOM_MDHD = 0x6D646864;  // 'mdhd'
+  static constexpr uint32_t ATOM_HDLR = 0x68646C72;  // 'hdlr'
+
+  struct AtomHeader {
+    uint32_t type;
+    uint64_t size;        // Total atom size including header
+    uint32_t dataOffset;  // File offset where data begins (after header)
+    uint64_t dataSize;    // size - header_length
+  };
+
+  // Read a 32-bit big-endian value from file at current position
+  static uint32_t readU32BE(File& file) {
+    uint8_t buf[4];
+    file.read(buf, 4);
+    return ((uint32_t)buf[0] << 24) | ((uint32_t)buf[1] << 16) |
+           ((uint32_t)buf[2] << 8)  | buf[3];
+  }
+
+  // Read a 64-bit big-endian value
+  static uint64_t readU64BE(File& file) {
+    uint32_t hi = readU32BE(file);
+    uint32_t lo = readU32BE(file);
+    return ((uint64_t)hi << 32) | lo;
+  }
+
+  // Read a 16-bit big-endian value
+  static uint16_t readU16BE(File& file) {
+    uint8_t buf[2];
+    file.read(buf, 2);
+    return ((uint16_t)buf[0] << 8) | buf[1];
+  }
+
+  // Read atom header at given file offset
+  bool readAtomHeader(File& file, uint32_t offset, AtomHeader& hdr) {
+    if (offset + 8 > _fileSize) return false;
+
+    file.seek(offset);
+    uint32_t size32 = readU32BE(file);
+    hdr.type = readU32BE(file);
+
+    if (size32 == 1) {
+      // 64-bit extended size
+      if (offset + 16 > _fileSize) return false;
+      hdr.size = readU64BE(file);
+      hdr.dataOffset = offset + 16;
+      hdr.dataSize = (hdr.size > 16) ? hdr.size - 16 : 0;
+    } else if (size32 == 0) {
+      // Atom extends to end of file
+      hdr.size = _fileSize - offset;
+      hdr.dataOffset = offset + 8;
+      hdr.dataSize = hdr.size - 8;
+    } else {
+      hdr.size = size32;
+      hdr.dataOffset = offset + 8;
+      hdr.dataSize = (size32 > 8) ? size32 - 8 : 0;
+    }
+
+    return true;
+  }
+
+  // Parse the moov container atom
+  void parseMoov(File& file, uint32_t start, uint32_t end) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      switch (hdr.type) {
+        case ATOM_MVHD:
+          parseMvhd(file, hdr.dataOffset, (uint32_t)hdr.dataSize);
+          break;
+        case ATOM_UDTA:
+          parseUdta(file, hdr.dataOffset, hdr.dataOffset + (uint32_t)hdr.dataSize);
+          break;
+        case ATOM_TRAK:
+          break;
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // Parse mvhd (movie header) for duration
+  void parseMvhd(File& file, uint32_t offset, uint32_t size) {
+    file.seek(offset);
+    uint8_t version = file.read();
+
+    if (version == 0) {
+      file.seek(offset + 4);   // skip version(1) + flags(3)
+      /* create_time */ readU32BE(file);
+      /* modify_time */ readU32BE(file);
+      uint32_t timescale = readU32BE(file);
+      uint32_t duration = readU32BE(file);
+      if (timescale > 0) {
+        durationMs = (uint32_t)((uint64_t)duration * 1000 / timescale);
+      }
+    } else if (version == 1) {
+      file.seek(offset + 4);
+      /* create_time */ readU64BE(file);
+      /* modify_time */ readU64BE(file);
+      uint32_t timescale = readU32BE(file);
+      uint64_t duration = readU64BE(file);
+      if (timescale > 0) {
+        durationMs = (uint32_t)(duration * 1000 / timescale);
+      }
+    }
+  }
+
+  // Parse udta container — contains meta and/or chpl
+  void parseUdta(File& file, uint32_t start, uint32_t end) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      if (hdr.type == ATOM_META) {
+        parseMeta(file, hdr.dataOffset + 4,
+                  hdr.dataOffset + (uint32_t)hdr.dataSize);
+      } else if (hdr.type == ATOM_CHPL) {
+        parseChpl(file, hdr.dataOffset, (uint32_t)hdr.dataSize);
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // Parse meta container — contains hdlr + ilst
+  void parseMeta(File& file, uint32_t start, uint32_t end) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      if (hdr.type == ATOM_ILST) {
+        parseIlst(file, hdr.dataOffset, hdr.dataOffset + (uint32_t)hdr.dataSize);
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // Parse ilst (iTunes metadata list) — contains ©nam, ©ART, covr etc.
+  void parseIlst(File& file, uint32_t start, uint32_t end) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      switch (hdr.type) {
+        case ATOM_NAM:
+          extractTextData(file, hdr.dataOffset,
+                          hdr.dataOffset + (uint32_t)hdr.dataSize,
+                          title, M4B_MAX_TITLE);
+          break;
+        case ATOM_ART:
+          extractTextData(file, hdr.dataOffset,
+                          hdr.dataOffset + (uint32_t)hdr.dataSize,
+                          author, M4B_MAX_AUTHOR);
+          break;
+        case ATOM_COVR:
+          extractCoverData(file, hdr.dataOffset,
+                           hdr.dataOffset + (uint32_t)hdr.dataSize);
+          break;
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // Extract text from a 'data' sub-atom within an ilst entry.
+  void extractTextData(File& file, uint32_t start, uint32_t end,
+                       char* dest, int maxLen) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      if (hdr.type == ATOM_DATA && hdr.dataSize > 8) {
+        uint32_t textOffset = hdr.dataOffset + 8;
+        uint32_t textLen = (uint32_t)hdr.dataSize - 8;
+        if (textLen > (uint32_t)(maxLen - 1)) textLen = maxLen - 1;
+
+        file.seek(textOffset);
+        file.read((uint8_t*)dest, textLen);
+        dest[textLen] = '\0';
+        return;
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // Extract cover art location from 'data' sub-atom within covr.
+  void extractCoverData(File& file, uint32_t start, uint32_t end) {
+    uint32_t pos = start;
+    while (pos < end) {
+      AtomHeader hdr;
+      if (!readAtomHeader(file, pos, hdr)) break;
+      if (hdr.size < 8) break;
+
+      if (hdr.type == ATOM_DATA && hdr.dataSize > 8) {
+        file.seek(hdr.dataOffset);
+        uint32_t typeIndicator = readU32BE(file);
+        uint8_t wellKnownType = typeIndicator & 0xFF;
+
+        coverOffset = hdr.dataOffset + 8;
+        coverSize = (uint32_t)hdr.dataSize - 8;
+        coverFormat = wellKnownType;  // 13=JPEG, 14=PNG
+        hasCoverArt = (coverSize > 0);
+
+        Serial.printf("M4B: Cover art found - %s, %u bytes at offset %u\n",
+                      wellKnownType == 13 ? "JPEG" :
+                      wellKnownType == 14 ? "PNG" : "unknown",
+                      coverSize, coverOffset);
+        return;
+      }
+
+      pos += (uint32_t)hdr.size;
+    }
+  }
+
+  // =====================================================================
+  // ID3v2 Parser for MP3 files
+  // =====================================================================
+public:
+  // Parse ID3v2 tags from an MP3 file. Extracts title (TIT2), artist
+  // (TPE1), and cover art (APIC). Fills the same metadata fields as
+  // the M4B parser so decodeCoverArt() works unchanged.
+  bool parseID3v2(File& file) {
+    clear();
+    if (!file || file.size() < 10) return false;
+
+    file.seek(0);
+    uint8_t hdr[10];
+    if (file.read(hdr, 10) != 10) return false;
+
+    // Verify "ID3" magic
+    if (hdr[0] != 'I' || hdr[1] != 'D' || hdr[2] != '3') {
+      Serial.println("ID3: No ID3v2 header found");
+      return false;
+    }
+
+    uint8_t versionMajor = hdr[3];  // 3 = ID3v2.3, 4 = ID3v2.4
+    bool v24 = (versionMajor == 4);
+    bool hasExtHeader = (hdr[5] & 0x40) != 0;
+
+    // Tag size is syncsafe integer (4 x 7-bit bytes)
+    uint32_t tagSize = ((uint32_t)(hdr[6] & 0x7F) << 21) |
+                       ((uint32_t)(hdr[7] & 0x7F) << 14) |
+                       ((uint32_t)(hdr[8] & 0x7F) << 7)  |
+                       (hdr[9] & 0x7F);
+
+    uint32_t tagEnd = 10 + tagSize;
+    if (tagEnd > file.size()) tagEnd = file.size();
+
+    Serial.printf("ID3: v2.%d, %u bytes\n", versionMajor, tagSize);
+
+    // Skip extended header if present
+    uint32_t pos = 10;
+    if (hasExtHeader && pos + 4 < tagEnd) {
+      file.seek(pos);
+      uint32_t extSize;
+      if (v24) {
+        uint8_t eb[4];
+        file.read(eb, 4);
+        extSize = ((uint32_t)(eb[0] & 0x7F) << 21) |
+                  ((uint32_t)(eb[1] & 0x7F) << 14) |
+                  ((uint32_t)(eb[2] & 0x7F) << 7)  |
+                  (eb[3] & 0x7F);
+      } else {
+        extSize = readU32BE(file) + 4;
+      }
+      pos += extSize;
+    }
+
+    // Walk ID3v2 frames
+    bool foundTitle = false, foundArtist = false, foundCover = false;
+
+    while (pos + 10 < tagEnd) {
+      file.seek(pos);
+      uint8_t fhdr[10];
+      if (file.read(fhdr, 10) != 10) break;
+
+      if (fhdr[0] == 0) break;
+
+      char frameId[5] = { (char)fhdr[0], (char)fhdr[1],
+                          (char)fhdr[2], (char)fhdr[3], '\0' };
+
+      uint32_t frameSize;
+      if (v24) {
+        frameSize = ((uint32_t)(fhdr[4] & 0x7F) << 21) |
+                    ((uint32_t)(fhdr[5] & 0x7F) << 14) |
+                    ((uint32_t)(fhdr[6] & 0x7F) << 7)  |
+                    (fhdr[7] & 0x7F);
+      } else {
+        frameSize = ((uint32_t)fhdr[4] << 24) | ((uint32_t)fhdr[5] << 16) |
+                    ((uint32_t)fhdr[6] << 8)  | fhdr[7];
+      }
+
+      if (frameSize == 0 || pos + 10 + frameSize > tagEnd) break;
+
+      uint32_t dataStart = pos + 10;
+
+      // --- TIT2 (Title) ---
+      if (!foundTitle && strcmp(frameId, "TIT2") == 0 && frameSize > 1) {
+        id3ExtractText(file, dataStart, frameSize, title, M4B_MAX_TITLE);
+        foundTitle = (title[0] != '\0');
+      }
+      // --- TPE1 (Artist/Author) ---
+      if (!foundArtist && strcmp(frameId, "TPE1") == 0 && frameSize > 1) {
+        id3ExtractText(file, dataStart, frameSize, author, M4B_MAX_AUTHOR);
+        foundArtist = (author[0] != '\0');
+      }
+      // --- APIC (Attached Picture) ---
+      if (!foundCover && strcmp(frameId, "APIC") == 0 && frameSize > 20) {
+        id3ExtractAPIC(file, dataStart, frameSize);
+        foundCover = hasCoverArt;
+      }
+
+      pos = dataStart + frameSize;
+
+      // Early exit once we have everything
+      if (foundTitle && foundArtist && foundCover) break;
+    }
+
+    if (foundTitle) Serial.printf("ID3: Title: %s\n", title);
+    if (foundArtist) Serial.printf("ID3: Author: %s\n", author);
+    return (foundTitle || foundCover);
+  }
+
+private:
+  // Extract text from a TIT2/TPE1 frame.
+  // Format: encoding(1) + text data
+  void id3ExtractText(File& file, uint32_t offset, uint32_t size,
+                      char* dest, int maxLen) {
+    file.seek(offset);
+    uint8_t encoding = file.read();
+    uint32_t textLen = size - 1;
+    if (textLen == 0) return;
+
+    if (encoding == 0 || encoding == 3) {
+      // ISO-8859-1 or UTF-8 — read directly
+      uint32_t readLen = (textLen < (uint32_t)(maxLen - 1))
+                         ? textLen : (uint32_t)(maxLen - 1);
+      file.read((uint8_t*)dest, readLen);
+      dest[readLen] = '\0';
+      // Strip trailing nulls
+      while (readLen > 0 && dest[readLen - 1] == '\0') readLen--;
+      dest[readLen] = '\0';
+    }
+    else if (encoding == 1 || encoding == 2) {
+      // UTF-16 (with or without BOM) — crude ASCII extraction
+      // Static buffer to avoid stack overflow (loopTask has limited stack)
+      static uint8_t u16buf[128];
+      uint32_t readLen = (textLen > sizeof(u16buf)) ? sizeof(u16buf) : textLen;
+      file.read(u16buf, readLen);
+
+      uint32_t srcStart = 0;
+      // Skip BOM if present
+      if (readLen >= 2 && ((u16buf[0] == 0xFF && u16buf[1] == 0xFE) ||
+                           (u16buf[0] == 0xFE && u16buf[1] == 0xFF))) {
+        srcStart = 2;
+      }
+      bool littleEndian = (srcStart >= 2 && u16buf[0] == 0xFF);
+
+      int dstIdx = 0;
+      for (uint32_t i = srcStart; i + 1 < readLen && dstIdx < maxLen - 1; i += 2) {
+        uint8_t lo = littleEndian ? u16buf[i] : u16buf[i + 1];
+        uint8_t hi = littleEndian ? u16buf[i + 1] : u16buf[i];
+        if (lo == 0 && hi == 0) break;  // null terminator
+        if (hi == 0 && lo >= 0x20 && lo < 0x7F) {
+          dest[dstIdx++] = (char)lo;
+        } else {
+          dest[dstIdx++] = '?';
+        }
+      }
+      dest[dstIdx] = '\0';
+    }
+  }
+
+  // Extract APIC (cover art) frame.
+  // Format: encoding(1) + MIME(null-term) + picType(1) + desc(null-term) + imageData
+  void id3ExtractAPIC(File& file, uint32_t offset, uint32_t frameSize) {
+    file.seek(offset);
+    uint8_t encoding = file.read();
+
+    // Read MIME type (null-terminated ASCII)
+    char mime[32] = {0};
+    int mimeLen = 0;
+    while (mimeLen < 31) {
+      int b = file.read();
+      if (b < 0) return;   // Read error
+      if (b == 0) break;   // Null terminator = end of MIME string
+      mime[mimeLen++] = (char)b;
+    }
+    mime[mimeLen] = '\0';
+
+    // Picture type (1 byte)
+    uint8_t picType = file.read();
+    (void)picType;
+
+    // Skip description (null-terminated, encoding-dependent)
+    if (encoding == 0 || encoding == 3) {
+      // Single-byte null terminator
+      while (true) {
+        int b = file.read();
+        if (b < 0) return;   // Read error
+        if (b == 0) break;   // Null terminator
+      }
+    } else {
+      // UTF-16: double-null terminator
+      while (true) {
+        int b1 = file.read();
+        int b2 = file.read();
+        if (b1 < 0 || b2 < 0) return;  // Read error
+        if (b1 == 0 && b2 == 0) break;  // Double-null terminator
+      }
+    }
+
+    // Everything from here to end of frame is image data
+    uint32_t imgOffset = file.position();
+    uint32_t imgEnd = offset + frameSize;
+    if (imgOffset >= imgEnd) return;
+
+    uint32_t imgSize = imgEnd - imgOffset;
+
+    // Determine format from MIME type
+    bool isJpeg = (strstr(mime, "jpeg") || strstr(mime, "jpg"));
+    bool isPng  = (strstr(mime, "png") != nullptr);
+
+    // Also detect by magic bytes if MIME is generic
+    if (!isJpeg && !isPng && imgSize > 4) {
+      file.seek(imgOffset);
+      uint8_t magic[4];
+      file.read(magic, 4);
+      if (magic[0] == 0xFF && magic[1] == 0xD8) isJpeg = true;
+      else if (magic[0] == 0x89 && magic[1] == 'P' &&
+               magic[2] == 'N'  && magic[3] == 'G') isPng = true;
+    }
+
+    coverOffset = imgOffset;
+    coverSize = imgSize;
+    coverFormat = isJpeg ? 13 : (isPng ? 14 : 0);
+    hasCoverArt = (imgSize > 100 && (isJpeg || isPng));
+
+    if (hasCoverArt) {
+      Serial.printf("ID3: Cover %s, %u bytes\n",
+                    isJpeg ? "JPEG" : "PNG", imgSize);
+    }
+  }
+
+  // Parse Nero-style chapter list (chpl atom).
+  void parseChpl(File& file, uint32_t offset, uint32_t size) {
+    if (size < 9) return;
+
+    file.seek(offset);
+    uint8_t version = file.read();
+    file.read();  // flags byte 1
+    file.read();  // flags byte 2
+    file.read();  // flags byte 3
+
+    file.read();  // reserved
+
+    uint32_t count;
+    if (version == 1) {
+      count = readU32BE(file);
+    } else {
+      count = file.read();
+    }
+
+    if (count > M4B_MAX_CHAPTERS) count = M4B_MAX_CHAPTERS;
+
+    chapterCount = 0;
+    for (uint32_t i = 0; i < count; i++) {
+      if (!file.available()) break;
+
+      uint64_t timestamp = readU64BE(file);
+      uint32_t startMs = (uint32_t)(timestamp / 10000);  // 100ns -> ms
+
+      uint8_t nameLen = file.read();
+      if (nameLen == 0 || !file.available()) break;
+
+      M4BChapter& ch = chapters[chapterCount];
+      ch.startMs = startMs;
+
+      uint8_t readLen = (nameLen < sizeof(ch.name) - 1) ? nameLen : sizeof(ch.name) - 1;
+      file.read((uint8_t*)ch.name, readLen);
+      ch.name[readLen] = '\0';
+
+      if (nameLen > readLen) {
+        file.seek(file.position() + (nameLen - readLen));
+      }
+
+      chapterCount++;
+    }
+
+    Serial.printf("M4B: Found %d chapters\n", chapterCount);
+  }
+};

examples/companion_radio/ui-new/ModemManager.h

@@ -0,0 +1,255 @@
+#pragma once
+
+// =============================================================================
+// ModemManager - A7682E 4G Modem Driver for T-Deck Pro (V1.1 4G variant)
+//
+// Runs AT commands on a dedicated FreeRTOS task (Core 0, priority 1) to never
+// block the mesh radio loop.  Communicates with main loop via lock-free queues.
+//
+// Supports: SMS send/receive, voice call dial/answer/hangup/DTMF
+//
+// Guard: HAS_4G_MODEM (defined only for the 4G build environment)
+// =============================================================================
+
+#ifdef HAS_4G_MODEM
+
+#ifndef MODEM_MANAGER_H
+#define MODEM_MANAGER_H
+
+#include <Arduino.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <freertos/queue.h>
+#include <freertos/semphr.h>
+#include "variant.h"
+#include "ApnDatabase.h"
+
+// ---------------------------------------------------------------------------
+// Modem pins (from variant.h, always defined for reference)
+//   MODEM_POWER_EN  41   Board 6609 enable
+//   MODEM_PWRKEY    40   Power key toggle
+//   MODEM_RST        9   Reset (shared with I2S BCLK on audio board)
+//   MODEM_RI         7   Ring indicator (shared with I2S DOUT on audio)
+//   MODEM_DTR        8   Data terminal ready (shared with I2S LRC on audio)
+//   MODEM_RX        10   UART RX (shared with PIN_PERF_POWERON)
+//   MODEM_TX        11   UART TX
+// ---------------------------------------------------------------------------
+
+// SMS field limits
+#define SMS_PHONE_LEN    20
+#define SMS_BODY_LEN    161   // 160 chars + null
+
+// Task configuration
+#define MODEM_TASK_PRIORITY   1       // Below mesh (default loop = priority 1 on core 1)
+#define MODEM_TASK_STACK_SIZE 6144    // Increased for call handling
+#define MODEM_TASK_CORE       0       // Run on core 0 (mesh runs on core 1)
+
+// Queue sizes
+#define MODEM_SEND_QUEUE_SIZE  4
+#define MODEM_RECV_QUEUE_SIZE  8
+#define MODEM_CALL_CMD_QUEUE_SIZE  4
+#define MODEM_CALL_EVT_QUEUE_SIZE  4
+
+// ---------------------------------------------------------------------------
+// Modem state machine
+// ---------------------------------------------------------------------------
+enum class ModemState {
+  OFF,
+  POWERING_ON,
+  INITIALIZING,
+  REGISTERING,
+  READY,
+  ERROR,
+  SENDING_SMS,
+  // Voice call states
+  DIALING,        // ATD sent, waiting for connect/carrier
+  RINGING_IN,     // Incoming call detected (RING URC)
+  IN_CALL         // Voice call active
+};
+
+// ---------------------------------------------------------------------------
+// SMS structures (unchanged)
+// ---------------------------------------------------------------------------
+
+// Outgoing SMS (queued from main loop to modem task)
+struct SMSOutgoing {
+  char phone[SMS_PHONE_LEN];
+  char body[SMS_BODY_LEN];
+};
+
+// Incoming SMS (queued from modem task to main loop)
+struct SMSIncoming {
+  char phone[SMS_PHONE_LEN];
+  char body[SMS_BODY_LEN];
+  uint32_t timestamp;   // epoch seconds (from modem RTC or millis-based)
+};
+
+// ---------------------------------------------------------------------------
+// Voice call structures
+// ---------------------------------------------------------------------------
+
+// Commands from main loop → modem task
+enum class CallCmd : uint8_t {
+  DIAL,           // Initiate outgoing call
+  ANSWER,         // Answer incoming call
+  HANGUP,         // End active call or reject incoming
+  DTMF,           // Send DTMF tone during call
+  SET_VOLUME      // Set speaker volume
+};
+
+struct CallCommand {
+  CallCmd cmd;
+  char phone[SMS_PHONE_LEN];   // Used by DIAL
+  char dtmf;                    // Used by DTMF (single digit: 0-9, *, #)
+  uint8_t volume;               // Used by SET_VOLUME (0-5)
+};
+
+// Events from modem task → main loop
+enum class CallEventType : uint8_t {
+  INCOMING,       // Incoming call ringing (+CLIP parsed)
+  CONNECTED,      // Call answered / outgoing connected
+  ENDED,          // Call ended (local hangup, remote hangup, or no carrier)
+  MISSED,         // Incoming call ended before answer
+  BUSY,           // Outgoing call got busy signal
+  NO_ANSWER,      // Outgoing call not answered
+  DIAL_FAILED     // ATD command failed
+};
+
+struct CallEvent {
+  CallEventType type;
+  char phone[SMS_PHONE_LEN];   // Caller/callee number (from +CLIP or dial)
+  uint32_t duration;            // Call duration in seconds (for ENDED)
+};
+
+// ---------------------------------------------------------------------------
+// ModemManager class
+// ---------------------------------------------------------------------------
+
+class ModemManager {
+public:
+  void begin();
+  void shutdown();
+
+  // --- SMS API (unchanged) ---
+  bool sendSMS(const char* phone, const char* body);
+  bool recvSMS(SMSIncoming& out);
+
+  // --- Voice Call API ---
+  bool dialCall(const char* phone);          // Queue outgoing call
+  bool answerCall();                          // Answer incoming call
+  bool hangupCall();                          // End active / reject incoming
+  bool sendDTMF(char digit);                  // Send DTMF during call
+  bool setCallVolume(uint8_t level);          // Set volume 0-5
+  bool pollCallEvent(CallEvent& out);         // Poll from main loop
+
+  // --- State queries (lock-free reads) ---
+  ModemState getState() const { return _state; }
+  int  getSignalBars() const;       // 0-5
+  int  getCSQ() const { return _csq; }
+  bool isReady() const { return _state == ModemState::READY; }
+  bool isInCall() const { return _state == ModemState::IN_CALL; }
+  bool isRinging() const { return _state == ModemState::RINGING_IN; }
+  bool isDialing() const { return _state == ModemState::DIALING; }
+  bool isCallActive() const {
+    return _state == ModemState::IN_CALL ||
+           _state == ModemState::DIALING ||
+           _state == ModemState::RINGING_IN;
+  }
+  const char* getOperator() const { return _operator; }
+  const char* getCallPhone() const { return _callPhone; }
+  uint32_t getCallStartTime() const { return _callStartTime; }
+
+  // --- Device info (populated during init) ---
+  const char* getIMEI() const { return _imei; }
+  const char* getIMSI() const { return _imsi; }
+  const char* getAPN() const { return _apn; }
+  const char* getAPNSource() const { return _apnSource; }  // "auto", "network", "user", "none"
+
+  // --- APN configuration ---
+  // Set APN manually (overrides auto-detection). Persists to SD.
+  void setAPN(const char* apn);
+  // Load user-configured APN from SD card. Returns true if found.
+  static bool loadAPNConfig(char* apnOut, int maxLen);
+  // Save user-configured APN to SD card.
+  static void saveAPNConfig(const char* apn);
+
+  // Pause/resume polling — used by web reader to avoid Core 0 contention
+  // during WiFi TLS handshakes.  While paused, the task skips AT commands
+  // (SMS poll, CSQ poll) but still drains URCs and handles call commands
+  // so incoming calls aren't missed.
+  void pausePolling()  { _paused = true; }
+  void resumePolling() { _paused = false; }
+  bool isPaused() const { return _paused; }
+
+  static const char* stateToString(ModemState s);
+
+  // Persistent enable/disable config (SD file /sms/modem.cfg)
+  static bool loadEnabledConfig();
+  static void saveEnabledConfig(bool enabled);
+
+private:
+  volatile ModemState _state = ModemState::OFF;
+  volatile int _csq = 99;    // 99 = unknown
+  volatile bool _paused = false;  // Suppresses AT polling when true
+  char _operator[24] = {0};
+
+  // Device identity (populated during Phase 2 init)
+  char _imei[20] = {0};      // IMEI from AT+GSN
+  char _imsi[20] = {0};      // IMSI from AT+CIMI (for APN lookup)
+  char _apn[64] = {0};       // Active APN
+  char _apnSource[8] = {0};  // "auto", "network", "user", "none"
+
+  // Call state (written by modem task, read by main loop)
+  char _callPhone[SMS_PHONE_LEN] = {0};  // Current call number
+  volatile uint32_t _callStartTime = 0;    // millis() when call connected
+
+  TaskHandle_t _taskHandle = nullptr;
+
+  // SMS queues
+  QueueHandle_t _sendQueue = nullptr;
+  QueueHandle_t _recvQueue = nullptr;
+
+  // Call queues
+  QueueHandle_t _callCmdQueue = nullptr;   // main loop → modem task
+  QueueHandle_t _callEvtQueue = nullptr;   // modem task → main loop
+
+  SemaphoreHandle_t _uartMutex = nullptr;
+
+  // URC line buffer (accumulated between AT commands)
+  static const int URC_BUF_SIZE = 256;
+  char _urcBuf[URC_BUF_SIZE];
+  int  _urcPos = 0;
+
+  // UART AT command helpers (called only from modem task)
+  bool modemPowerOn();
+  bool sendAT(const char* cmd, const char* expect, uint32_t timeout_ms = 2000);
+  bool waitResponse(const char* expect, uint32_t timeout_ms, char* buf = nullptr, size_t bufLen = 0);
+  void pollCSQ();
+  void pollIncomingSMS();
+  bool doSendSMS(const char* phone, const char* body);
+
+  // URC (unsolicited result code) handling
+  void drainURCs();                // Read available UART data, process complete lines
+  void processURCLine(const char* line);  // Handle a single URC line
+
+  // APN resolution (called from modem task during init)
+  void resolveAPN();              // Auto-detect APN from network/IMSI/user config
+
+  // Call control (called from modem task)
+  bool doDialCall(const char* phone);
+  bool doAnswerCall();
+  bool doHangup();
+  bool doSendDTMF(char digit);
+  bool doSetVolume(uint8_t level);
+  void queueCallEvent(CallEventType type, const char* phone = nullptr, uint32_t duration = 0);
+
+  // FreeRTOS task
+  static void taskEntry(void* param);
+  void taskLoop();
+};
+
+// Global singleton
+extern ModemManager modemManager;
+
+#endif // MODEM_MANAGER_H
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/SMSContacts.cpp

@@ -0,0 +1,8 @@
+#ifdef HAS_4G_MODEM
+
+#include "SMSContacts.h"
+
+// Global singleton
+SMSContactStore smsContacts;
+
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/SMSContacts.h

@@ -0,0 +1,176 @@
+#pragma once
+
+// =============================================================================
+// SMSContacts - Phone-to-name lookup for SMS contacts (4G variant)
+//
+// Stores contacts in /sms/contacts.txt on SD card.
+// Format: one contact per line as "phone=Display Name"
+//
+// Completely separate from mesh ContactInfo / IdentityStore.
+//
+// Guard: HAS_4G_MODEM
+// =============================================================================
+
+#ifdef HAS_4G_MODEM
+
+#ifndef SMS_CONTACTS_H
+#define SMS_CONTACTS_H
+
+#include <Arduino.h>
+#include <SD.h>
+
+#define SMS_CONTACT_NAME_LEN   24
+#define SMS_CONTACT_MAX        30
+#define SMS_CONTACTS_FILE      "/sms/contacts.txt"
+
+struct SMSContact {
+  char phone[20];   // matches SMS_PHONE_LEN
+  char name[SMS_CONTACT_NAME_LEN];
+  bool valid;
+};
+
+class SMSContactStore {
+public:
+  void begin() {
+    _count = 0;
+    memset(_contacts, 0, sizeof(_contacts));
+    load();
+  }
+
+  // Look up a name by phone number. Returns nullptr if not found.
+  const char* lookup(const char* phone) const {
+    for (int i = 0; i < _count; i++) {
+      if (_contacts[i].valid && strcmp(_contacts[i].phone, phone) == 0) {
+        return _contacts[i].name;
+      }
+    }
+    return nullptr;
+  }
+
+  // Fill buf with display name if found, otherwise copy phone number.
+  // Returns true if a name was found.
+  bool displayName(const char* phone, char* buf, size_t bufLen) const {
+    const char* name = lookup(phone);
+    if (name && name[0]) {
+      strncpy(buf, name, bufLen - 1);
+      buf[bufLen - 1] = '\0';
+      return true;
+    }
+    strncpy(buf, phone, bufLen - 1);
+    buf[bufLen - 1] = '\0';
+    return false;
+  }
+
+  // Add or update a contact. Returns true on success.
+  bool set(const char* phone, const char* name) {
+    // Update existing
+    for (int i = 0; i < _count; i++) {
+      if (_contacts[i].valid && strcmp(_contacts[i].phone, phone) == 0) {
+        strncpy(_contacts[i].name, name, SMS_CONTACT_NAME_LEN - 1);
+        _contacts[i].name[SMS_CONTACT_NAME_LEN - 1] = '\0';
+        save();
+        return true;
+      }
+    }
+    // Add new
+    if (_count >= SMS_CONTACT_MAX) return false;
+    strncpy(_contacts[_count].phone, phone, sizeof(_contacts[_count].phone) - 1);
+    _contacts[_count].phone[sizeof(_contacts[_count].phone) - 1] = '\0';
+    strncpy(_contacts[_count].name, name, SMS_CONTACT_NAME_LEN - 1);
+    _contacts[_count].name[SMS_CONTACT_NAME_LEN - 1] = '\0';
+    _contacts[_count].valid = true;
+    _count++;
+    save();
+    return true;
+  }
+
+  // Remove a contact by phone number
+  bool remove(const char* phone) {
+    for (int i = 0; i < _count; i++) {
+      if (_contacts[i].valid && strcmp(_contacts[i].phone, phone) == 0) {
+        for (int j = i; j < _count - 1; j++) {
+          _contacts[j] = _contacts[j + 1];
+        }
+        _count--;
+        memset(&_contacts[_count], 0, sizeof(SMSContact));
+        save();
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // Accessors for list browsing
+  int count() const { return _count; }
+  const SMSContact& get(int index) const { return _contacts[index]; }
+
+  // Check if a contact exists
+  bool exists(const char* phone) const { return lookup(phone) != nullptr; }
+
+private:
+  SMSContact _contacts[SMS_CONTACT_MAX];
+  int _count = 0;
+
+  void load() {
+    File f = SD.open(SMS_CONTACTS_FILE, FILE_READ);
+    if (!f) {
+      Serial.println("[SMSContacts] No contacts file, starting fresh");
+      return;
+    }
+
+    char line[64];
+    while (f.available() && _count < SMS_CONTACT_MAX) {
+      int pos = 0;
+      while (f.available() && pos < (int)sizeof(line) - 1) {
+        char c = f.read();
+        if (c == '\n' || c == '\r') break;
+        line[pos++] = c;
+      }
+      line[pos] = '\0';
+      if (pos == 0) continue;
+      // Consume trailing CR/LF
+      while (f.available()) {
+        int pk = f.peek();
+        if (pk == '\n' || pk == '\r') { f.read(); continue; }
+        break;
+      }
+
+      // Parse "phone=name"
+      char* eq = strchr(line, '=');
+      if (!eq) continue;
+      *eq = '\0';
+      const char* phone = line;
+      const char* name = eq + 1;
+      if (strlen(phone) == 0 || strlen(name) == 0) continue;
+
+      strncpy(_contacts[_count].phone, phone, sizeof(_contacts[_count].phone) - 1);
+      strncpy(_contacts[_count].name, name, SMS_CONTACT_NAME_LEN - 1);
+      _contacts[_count].valid = true;
+      _count++;
+    }
+    f.close();
+    Serial.printf("[SMSContacts] Loaded %d contacts\n", _count);
+  }
+
+  void save() {
+    if (!SD.exists("/sms")) SD.mkdir("/sms");
+    File f = SD.open(SMS_CONTACTS_FILE, FILE_WRITE);
+    if (!f) {
+      Serial.println("[SMSContacts] Failed to write contacts file");
+      return;
+    }
+    for (int i = 0; i < _count; i++) {
+      if (!_contacts[i].valid) continue;
+      f.print(_contacts[i].phone);
+      f.print('=');
+      f.println(_contacts[i].name);
+    }
+    f.close();
+  }
+};
+
+// Global singleton
+extern SMSContactStore smsContacts;
+
+#endif // SMS_CONTACTS_H
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/SMSStore.cpp

@@ -0,0 +1,196 @@
+#ifdef HAS_4G_MODEM
+
+#include "SMSStore.h"
+#include <Mesh.h>   // For MESH_DEBUG_PRINTLN
+#include "target.h" // For SDCARD_CS macro
+
+// Global singleton
+SMSStore smsStore;
+
+void SMSStore::begin() {
+  // Ensure SMS directory exists
+  if (!SD.exists(SMS_DIR)) {
+    SD.mkdir(SMS_DIR);
+    MESH_DEBUG_PRINTLN("[SMSStore] created %s", SMS_DIR);
+  }
+  _ready = true;
+  MESH_DEBUG_PRINTLN("[SMSStore] ready");
+}
+
+void SMSStore::phoneToFilename(const char* phone, char* out, size_t outLen) {
+  // Convert phone number to safe filename: strip non-alphanumeric, prefix with dir
+  // e.g. "+1234567890" -> "/sms/p1234567890.sms"
+  char safe[SMS_PHONE_LEN];
+  int j = 0;
+  for (int i = 0; phone[i] && j < SMS_PHONE_LEN - 1; i++) {
+    char c = phone[i];
+    if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+      safe[j++] = c;
+    }
+  }
+  safe[j] = '\0';
+  snprintf(out, outLen, "%s/p%s.sms", SMS_DIR, safe);
+}
+
+bool SMSStore::saveMessage(const char* phone, const char* body, bool isSent, uint32_t timestamp) {
+  if (!_ready) return false;
+
+  char filepath[64];
+  phoneToFilename(phone, filepath, sizeof(filepath));
+
+  // Build record
+  SMSRecord rec;
+  memset(&rec, 0, sizeof(rec));
+  rec.timestamp = timestamp;
+  rec.isSent = isSent ? 1 : 0;
+  rec.bodyLen = strlen(body);
+  if (rec.bodyLen >= SMS_BODY_LEN) rec.bodyLen = SMS_BODY_LEN - 1;
+  strncpy(rec.phone, phone, SMS_PHONE_LEN - 1);
+  strncpy(rec.body, body, SMS_BODY_LEN - 1);
+
+  // Append to file
+  File f = SD.open(filepath, FILE_APPEND);
+  if (!f) {
+    // Try creating
+    f = SD.open(filepath, FILE_WRITE);
+    if (!f) {
+      MESH_DEBUG_PRINTLN("[SMSStore] can't open %s", filepath);
+      return false;
+    }
+  }
+
+  size_t written = f.write((uint8_t*)&rec, sizeof(rec));
+  f.close();
+
+  // Release SD CS
+  digitalWrite(SDCARD_CS, HIGH);
+
+  return written == sizeof(rec);
+}
+
+int SMSStore::loadConversations(SMSConversation* out, int maxCount) {
+  if (!_ready) return 0;
+
+  File dir = SD.open(SMS_DIR);
+  if (!dir || !dir.isDirectory()) return 0;
+
+  int count = 0;
+  File entry;
+  while ((entry = dir.openNextFile()) && count < maxCount) {
+    const char* name = entry.name();
+    // Only process .sms files
+    if (!strstr(name, ".sms")) { entry.close(); continue; }
+
+    size_t fileSize = entry.size();
+    if (fileSize < sizeof(SMSRecord)) { entry.close(); continue; }
+
+    int numRecords = fileSize / sizeof(SMSRecord);
+
+    // Read the last record for preview
+    SMSRecord lastRec;
+    entry.seek(fileSize - sizeof(SMSRecord));
+    if (entry.read((uint8_t*)&lastRec, sizeof(SMSRecord)) != sizeof(SMSRecord)) {
+      entry.close();
+      continue;
+    }
+
+    SMSConversation& conv = out[count];
+    memset(&conv, 0, sizeof(SMSConversation));
+    strncpy(conv.phone, lastRec.phone, SMS_PHONE_LEN - 1);
+    strncpy(conv.preview, lastRec.body, 39);
+    conv.preview[39] = '\0';
+    conv.lastTimestamp = lastRec.timestamp;
+    conv.messageCount = numRecords;
+    conv.unreadCount = 0;  // TODO: track read state
+    conv.valid = true;
+
+    count++;
+    entry.close();
+  }
+  dir.close();
+
+  // Release SD CS
+  digitalWrite(SDCARD_CS, HIGH);
+
+  // Sort by most recent (simple bubble sort, small N)
+  for (int i = 0; i < count - 1; i++) {
+    for (int j = 0; j < count - 1 - i; j++) {
+      if (out[j].lastTimestamp < out[j + 1].lastTimestamp) {
+        SMSConversation tmp = out[j];
+        out[j] = out[j + 1];
+        out[j + 1] = tmp;
+      }
+    }
+  }
+
+  return count;
+}
+
+int SMSStore::loadMessages(const char* phone, SMSMessage* out, int maxCount) {
+  if (!_ready) return 0;
+
+  char filepath[64];
+  phoneToFilename(phone, filepath, sizeof(filepath));
+
+  File f = SD.open(filepath, FILE_READ);
+  if (!f) return 0;
+
+  size_t fileSize = f.size();
+  int numRecords = fileSize / sizeof(SMSRecord);
+
+  // Load from end of file (most recent N messages), in chronological order
+  int startIdx = numRecords > maxCount ? numRecords - maxCount : 0;
+
+  // Read chronologically (oldest first) for chat-style display
+  SMSRecord rec;
+  int outIdx = 0;
+  for (int i = startIdx; i < numRecords && outIdx < maxCount; i++) {
+    f.seek(i * sizeof(SMSRecord));
+    if (f.read((uint8_t*)&rec, sizeof(SMSRecord)) != sizeof(SMSRecord)) continue;
+
+    out[outIdx].timestamp = rec.timestamp;
+    out[outIdx].isSent = rec.isSent != 0;
+    out[outIdx].valid = true;
+    strncpy(out[outIdx].phone, rec.phone, SMS_PHONE_LEN - 1);
+    strncpy(out[outIdx].body, rec.body, SMS_BODY_LEN - 1);
+    outIdx++;
+  }
+
+  f.close();
+
+  digitalWrite(SDCARD_CS, HIGH);
+
+  return outIdx;
+}
+
+bool SMSStore::deleteConversation(const char* phone) {
+  if (!_ready) return false;
+
+  char filepath[64];
+  phoneToFilename(phone, filepath, sizeof(filepath));
+
+  bool ok = SD.remove(filepath);
+
+  digitalWrite(SDCARD_CS, HIGH);
+
+  return ok;
+}
+
+int SMSStore::getMessageCount(const char* phone) {
+  if (!_ready) return 0;
+
+  char filepath[64];
+  phoneToFilename(phone, filepath, sizeof(filepath));
+
+  File f = SD.open(filepath, FILE_READ);
+  if (!f) return 0;
+
+  int count = f.size() / sizeof(SMSRecord);
+  f.close();
+
+  digitalWrite(SDCARD_CS, HIGH);
+
+  return count;
+}
+
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/SMSStore.h

@@ -0,0 +1,87 @@
+#pragma once
+
+// =============================================================================
+// SMSStore - SD card backed SMS message storage
+//
+// Stores sent and received messages in /sms/ on the SD card.
+// Each conversation is a separate file named by phone number (sanitised).
+// Messages are appended as fixed-size records for simple random access.
+//
+// Guard: HAS_4G_MODEM
+// =============================================================================
+
+#ifdef HAS_4G_MODEM
+
+#ifndef SMS_STORE_H
+#define SMS_STORE_H
+
+#include <Arduino.h>
+#include <SD.h>
+
+#define SMS_PHONE_LEN    20
+#define SMS_BODY_LEN    161
+#define SMS_MAX_CONVERSATIONS 20
+#define SMS_DIR          "/sms"
+
+// Fixed-size on-disk record (256 bytes, easy alignment)
+struct SMSRecord {
+  uint32_t timestamp;           // epoch seconds
+  uint8_t  isSent;              // 1=sent, 0=received
+  uint8_t  reserved[2];
+  uint8_t  bodyLen;             // actual length of body
+  char     phone[SMS_PHONE_LEN]; // 20
+  char     body[SMS_BODY_LEN];   // 161
+  uint8_t  padding[256 - 4 - 3 - 1 - SMS_PHONE_LEN - SMS_BODY_LEN];
+};
+
+// In-memory message for UI
+struct SMSMessage {
+  uint32_t timestamp;
+  bool     isSent;
+  bool     valid;
+  char     phone[SMS_PHONE_LEN];
+  char     body[SMS_BODY_LEN];
+};
+
+// Conversation summary for inbox view
+struct SMSConversation {
+  char     phone[SMS_PHONE_LEN];
+  char     preview[40];         // last message preview
+  uint32_t lastTimestamp;
+  int      messageCount;
+  int      unreadCount;
+  bool     valid;
+};
+
+class SMSStore {
+public:
+  void begin();
+  bool isReady() const { return _ready; }
+
+  // Save a message (sent or received)
+  bool saveMessage(const char* phone, const char* body, bool isSent, uint32_t timestamp);
+
+  // Load conversation list (sorted by most recent)
+  int loadConversations(SMSConversation* out, int maxCount);
+
+  // Load messages for a specific phone number (chronological, oldest first)
+  int loadMessages(const char* phone, SMSMessage* out, int maxCount);
+
+  // Delete all messages for a phone number
+  bool deleteConversation(const char* phone);
+
+  // Get total message count for a phone number
+  int getMessageCount(const char* phone);
+
+private:
+  bool _ready = false;
+
+  // Convert phone number to safe filename
+  void phoneToFilename(const char* phone, char* out, size_t outLen);
+};
+
+// Global singleton
+extern SMSStore smsStore;
+
+#endif // SMS_STORE_H
+#endif // HAS_4G_MODEM

examples/companion_radio/ui-new/Touchinput.h

@@ -0,0 +1,128 @@
+#pragma once
+
+// =============================================================================
+// TouchInput - Minimal CST328/CST3530 touch driver for T-Deck Pro
+//
+// Uses raw I2C reads on the shared Wire bus. No external library needed.
+// Protocol confirmed via raw serial capture from actual hardware:
+//
+//   Register 0xD000, 7 bytes:
+//   buf[0]: event flags (0xAB = idle/no touch, other = active touch)
+//   buf[1]: X coordinate high data
+//   buf[2]: Y coordinate high data
+//   buf[3]: X low nibble (bits 7:4) | Y low nibble (bits 3:0)
+//   buf[4]: pressure
+//   buf[5]: touch count (& 0x7F), typically 0x01 for single touch
+//   buf[6]: 0xAB always (check byte, ignore)
+//
+//   Coordinate formula:
+//     x = (buf[1] << 4) | ((buf[3] >> 4) & 0x0F)   → 0..239
+//     y = (buf[2] << 4) | (buf[3] & 0x0F)           → 0..319
+//
+// Hardware: CST328 at 0x1A, INT=GPIO12, RST=GPIO38 (V1.1)
+//
+// Guard: HAS_TOUCHSCREEN
+// =============================================================================
+
+#ifdef HAS_TOUCHSCREEN
+
+#ifndef TOUCH_INPUT_H
+#define TOUCH_INPUT_H
+
+#include <Arduino.h>
+#include <Wire.h>
+
+class TouchInput {
+public:
+  static const uint8_t TOUCH_ADDR = 0x1A;
+
+  TouchInput(TwoWire* wire = &Wire)
+    : _wire(wire), _intPin(-1), _initialized(false), _debugCount(0), _lastPoll(0) {}
+
+  bool begin(int intPin) {
+    _intPin = intPin;
+    pinMode(_intPin, INPUT);
+
+    // Verify the touch controller is present on the bus
+    _wire->beginTransmission(TOUCH_ADDR);
+    uint8_t err = _wire->endTransmission();
+    if (err != 0) {
+      Serial.printf("[Touch] CST328 not found at 0x%02X (err=%d)\n", TOUCH_ADDR, err);
+      return false;
+    }
+
+    Serial.printf("[Touch] CST328 found at 0x%02X, INT=GPIO%d\n", TOUCH_ADDR, _intPin);
+    _initialized = true;
+    return true;
+  }
+
+  bool isReady() const { return _initialized; }
+
+  // Poll for touch. Returns true if a finger is down, fills x and y.
+  // Coordinates are in physical display space (0-239 X, 0-319 Y).
+  // NOTE: CST328 INT pin is pulse-based, not level. We cannot rely on
+  // digitalRead(INT) for touch state. Instead, always read and check buf[0].
+  bool getPoint(int16_t &x, int16_t &y) {
+    if (!_initialized) return false;
+
+    // Rate limit: poll at most every 20ms (50 Hz) to avoid I2C bus congestion
+    unsigned long now = millis();
+    if (now - _lastPoll < 20) return false;
+    _lastPoll = now;
+
+    uint8_t buf[7];
+    memset(buf, 0, sizeof(buf));
+
+    // Write register address 0xD000
+    _wire->beginTransmission(TOUCH_ADDR);
+    _wire->write(0xD0);
+    _wire->write(0x00);
+    if (_wire->endTransmission(false) != 0) return false;
+
+    // Read 7 bytes of touch data
+    uint8_t received = _wire->requestFrom(TOUCH_ADDR, (uint8_t)7);
+    if (received < 7) return false;
+    for (int i = 0; i < 7; i++) buf[i] = _wire->read();
+
+    // buf[0] == 0xAB means idle (no touch active)
+    if (buf[0] == 0xAB) return false;
+
+    // buf[0] == 0x00 can appear on finger-up transition — ignore
+    if (buf[0] == 0x00) return false;
+
+    // Touch count from buf[5]
+    uint8_t count = buf[5] & 0x7F;
+    if (count == 0 || count > 5) return false;
+
+    // Parse coordinates (CST226/CST328 format confirmed by hardware capture)
+    //   x = (buf[1] << 4) | high nibble of buf[3]
+    //   y = (buf[2] << 4) | low nibble of buf[3]
+    int16_t tx = ((int16_t)buf[1] << 4) | ((buf[3] >> 4) & 0x0F);
+    int16_t ty = ((int16_t)buf[2] << 4) | (buf[3] & 0x0F);
+
+    // Sanity check (panel is 240x320)
+    if (tx < 0 || tx > 260 || ty < 0 || ty > 340) return false;
+
+    // Debug: log first 20 touch events with parsed coordinates
+    if (_debugCount < 50) {
+      Serial.printf("[Touch] Raw: %02X %02X %02X %02X %02X %02X %02X → x=%d y=%d\n",
+                    buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6],
+                    tx, ty);
+      _debugCount++;
+    }
+
+    x = tx;
+    y = ty;
+    return true;
+  }
+
+private:
+  TwoWire* _wire;
+  int _intPin;
+  bool _initialized;
+  int _debugCount;
+  unsigned long _lastPoll;
+};
+
+#endif // TOUCH_INPUT_H
+#endif // HAS_TOUCHSCREEN

examples/companion_radio/ui-new/UITask.h

@@ -22,6 +22,14 @@
 #include "../AbstractUITask.h"
 #include "../NodePrefs.h"
 
+#ifdef HAS_4G_MODEM
+  #include "SMSScreen.h"
+#endif
+
+#ifdef MECK_WEB_READER
+  #include "WebReaderScreen.h"
+#endif
+
 class UITask : public AbstractUITask {
   DisplayDriver* _display;
   SensorManager* _sensors;
@@ -32,6 +40,7 @@ class UITask : public AbstractUITask {
   GenericVibration vibration;
 #endif
   unsigned long _next_refresh, _auto_off;
+  unsigned long _kb_flash_off_at;          // Keyboard flash turn-off timer
   NodePrefs* _node_prefs;
   char _alert[80];
   unsigned long _alert_expiry;
@@ -51,6 +60,19 @@ class UITask : public AbstractUITask {
   UIScreen* splash;
   UIScreen* home;
   UIScreen* msg_preview;
+  UIScreen* channel_screen;  // Channel message history screen
+  UIScreen* contacts_screen; // Contacts list screen
+  UIScreen* text_reader;     // *** NEW: Text reader screen ***
+  UIScreen* notes_screen;    // Notes editor screen
+  UIScreen* settings_screen; // Settings/onboarding screen
+  UIScreen* audiobook_screen; // Audiobook player screen (null if not available)
+#ifdef HAS_4G_MODEM
+  UIScreen* sms_screen;      // SMS messaging screen (4G variant only)
+#endif
+  UIScreen* repeater_admin;   // Repeater admin screen
+#ifdef MECK_WEB_READER
+  UIScreen* web_reader;       // Web reader screen (lazy-init, WiFi required)
+#endif
   UIScreen* curr;
 
   void userLedHandler();
@@ -67,27 +89,101 @@ public:
 
   UITask(mesh::MainBoard* board, BaseSerialInterface* serial) : AbstractUITask(board, serial), _display(NULL), _sensors(NULL) {
     next_batt_chck = _next_refresh = 0;
+    _kb_flash_off_at = 0;
     ui_started_at = 0;
     curr = NULL;
   }
   void begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* node_prefs);
 
-  void gotoHomeScreen() { setCurrScreen(home); }
-  void showAlert(const char* text, int duration_millis);
+  void gotoHomeScreen();
+  void gotoChannelScreen();  // Navigate to channel message screen
+  void gotoContactsScreen(); // Navigate to contacts list
+  void gotoTextReader();     // *** NEW: Navigate to text reader ***
+  void gotoNotesScreen();    // Navigate to notes editor
+  void gotoSettingsScreen(); // Navigate to settings
+  void gotoOnboarding();     // Navigate to settings in onboarding mode
+  void gotoAudiobookPlayer(); // Navigate to audiobook player
+  void gotoRepeaterAdmin(int contactIdx);  // Navigate to repeater admin
+#ifdef MECK_WEB_READER
+  void gotoWebReader();         // Navigate to web reader (browser)
+#endif
+#ifdef HAS_4G_MODEM
+  void gotoSMSScreen();
+  bool isOnSMSScreen() const { return curr == sms_screen; }
+  SMSScreen* getSMSScreen() const { return (SMSScreen*)sms_screen; }
+#endif
+  void showAlert(const char* text, int duration_millis) override;
+  void forceRefresh() override { _next_refresh = 100; }
+  // Wake display and extend auto-off timer. Call this when handling keys
+  // outside of injectKey() to prevent display auto-off during direct input.
+  void keepAlive() {
+    if (_display != NULL && !_display->isOn()) _display->turnOn();
+    _auto_off = millis() + 15000;  // matches AUTO_OFF_MILLIS default
+  }
   int  getMsgCount() const { return _msgcount; }
+  int  getUnreadMsgCount() const;  // Per-channel unread tracking (standalone)
   bool hasDisplay() const { return _display != NULL; }
   bool isButtonPressed() const;
+  bool isOnChannelScreen() const { return curr == channel_screen; }
+  bool isOnContactsScreen() const { return curr == contacts_screen; }
+  bool isOnTextReader() const { return curr == text_reader; }  // *** NEW ***
+  bool isOnNotesScreen() const { return curr == notes_screen; }
+  bool isOnSettingsScreen() const { return curr == settings_screen; }
+  bool isOnAudiobookPlayer() const { return curr == audiobook_screen; }
+  bool isOnRepeaterAdmin() const { return curr == repeater_admin; }
+#ifdef MECK_WEB_READER
+  bool isOnWebReader() const { return curr == web_reader; }
+#endif
+
+#ifdef MECK_AUDIO_VARIANT
+  // Check if audio is playing/paused in the background (for status indicators)
+  bool isAudioPlayingInBackground() const;
+  bool isAudioPausedInBackground() const;
+#endif
+  uint8_t getChannelScreenViewIdx() const;
 
   void toggleBuzzer();
   bool getGPSState();
   void toggleGPS();
 
+  // Check if home screen is in an editing mode (e.g. UTC offset editor)
+  bool isEditingHomeScreen() const;
+
+  // Inject a key press from external source (e.g., keyboard)
+  void injectKey(char c);
+  
+  // Add a sent message to the channel screen history
+  void addSentChannelMessage(uint8_t channel_idx, const char* sender, const char* text) override;
+
+  // Mark channel as read when BLE companion app syncs messages
+  void markChannelReadFromBLE(uint8_t channel_idx) override;
+
+  // Repeater admin callbacks
+  void onAdminLoginResult(bool success, uint8_t permissions, uint32_t server_time) override;
+  void onAdminCliResponse(const char* from_name, const char* text) override;
+  void onAdminTelemetryResult(const uint8_t* data, uint8_t len) override;
+  
+  // Get current screen for checking state
+  UIScreen* getCurrentScreen() const { return curr; }
+  UIScreen* getMsgPreviewScreen() const { return msg_preview; }
+  UIScreen* getTextReaderScreen() const { return text_reader; }  // *** NEW ***
+  UIScreen* getNotesScreen() const { return notes_screen; }
+  UIScreen* getContactsScreen() const { return contacts_screen; }
+  UIScreen* getChannelScreen() const { return channel_screen; }
+  UIScreen* getSettingsScreen() const { return settings_screen; }
+  UIScreen* getAudiobookScreen() const { return audiobook_screen; }
+  void setAudiobookScreen(UIScreen* s) { audiobook_screen = s; }
+  UIScreen* getRepeaterAdminScreen() const { return repeater_admin; }
+#ifdef MECK_WEB_READER
+  UIScreen* getWebReaderScreen() const { return web_reader; }
+#endif
 
   // from AbstractUITask
   void msgRead(int msgcount) override;
-  void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount) override;
+  void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount,
+             const uint8_t* path = nullptr) override;
   void notify(UIEventType t = UIEventType::none) override;
   void loop() override;
 
   void shutdown(bool restart = false);
-};
+};

examples/companion_radio/ui-new/Utf8cp437.h

@@ -0,0 +1,152 @@
+#pragma once
+// =============================================================================
+// Utf8CP437.h - UTF-8 decoding and Unicode-to-CP437 mapping
+//
+// The Adafruit GFX built-in 6x8 font uses the CP437 character set for codes
+// 128-255. This header provides utilities to:
+//   1. Decode UTF-8 multi-byte sequences into Unicode codepoints
+//   2. Map Unicode codepoints to CP437 byte values for display
+//
+// Used by both EpubProcessor (at XHTML→text conversion time) and
+// TextReaderScreen (at render time for plain .txt files).
+// =============================================================================
+
+// Map a Unicode codepoint to its CP437 equivalent byte.
+// Returns the CP437 byte (0x80-0xFF) for supported accented characters,
+// the codepoint itself for ASCII (0x20-0x7E), or 0 if unmappable.
+inline uint8_t unicodeToCP437(uint32_t cp) {
+  // ASCII passthrough
+  if (cp >= 0x20 && cp < 0x7F) return (uint8_t)cp;
+
+  switch (cp) {
+    // Uppercase accented
+    case 0x00C7: return 0x80;  // Ç
+    case 0x00C9: return 0x90;  // É
+    case 0x00C4: return 0x8E;  // Ä
+    case 0x00C5: return 0x8F;  // Å
+    case 0x00C6: return 0x92;  // Æ
+    case 0x00D6: return 0x99;  // Ö
+    case 0x00DC: return 0x9A;  // Ü
+    case 0x00D1: return 0xA5;  // Ñ
+
+    // Lowercase accented
+    case 0x00E9: return 0x82;  // é
+    case 0x00E2: return 0x83;  // â
+    case 0x00E4: return 0x84;  // ä
+    case 0x00E0: return 0x85;  // à
+    case 0x00E5: return 0x86;  // å
+    case 0x00E7: return 0x87;  // ç
+    case 0x00EA: return 0x88;  // ê
+    case 0x00EB: return 0x89;  // ë
+    case 0x00E8: return 0x8A;  // è
+    case 0x00EF: return 0x8B;  // ï
+    case 0x00EE: return 0x8C;  // î
+    case 0x00EC: return 0x8D;  // ì
+    case 0x00E6: return 0x91;  // æ
+    case 0x00F4: return 0x93;  // ô
+    case 0x00F6: return 0x94;  // ö
+    case 0x00F2: return 0x95;  // ò
+    case 0x00FB: return 0x96;  // û
+    case 0x00F9: return 0x97;  // ù
+    case 0x00FF: return 0x98;  // ÿ
+    case 0x00FC: return 0x81;  // ü
+    case 0x00E1: return 0xA0;  // á
+    case 0x00ED: return 0xA1;  // í
+    case 0x00F3: return 0xA2;  // ó
+    case 0x00FA: return 0xA3;  // ú
+    case 0x00F1: return 0xA4;  // ñ
+
+    // Currency / symbols
+    case 0x00A2: return 0x9B;  // ¢
+    case 0x00A3: return 0x9C;  // £
+    case 0x00A5: return 0x9D;  // ¥
+    case 0x00BF: return 0xA8;  // ¿
+    case 0x00A1: return 0xAD;  // ¡
+    case 0x00AB: return 0xAE;  // «
+    case 0x00BB: return 0xAF;  // »
+    case 0x00B0: return 0xF8;  // °
+    case 0x00B1: return 0xF1;  // ±
+    case 0x00B5: return 0xE6;  // µ
+    case 0x00DF: return 0xE1;  // ß
+
+    // Typographic (smart quotes, dashes, etc.)
+    case 0x2018: case 0x2019: return '\'';  // Smart single quotes
+    case 0x201C: case 0x201D: return '"';   // Smart double quotes
+    case 0x2013: case 0x2014: return '-';   // En/em dash
+    case 0x2010: case 0x2011: case 0x2012: case 0x2015: return '-'; // Hyphens/bars
+    case 0x2026: return 0xFD;              // Ellipsis (CP437 has no …, use ²? no, skip)
+    case 0x2022: return 0x07;              // Bullet → CP437 bullet
+    case 0x00A0: return ' ';               // Non-breaking space
+    case 0x2039: case 0x203A: return '\''; // Single guillemets
+    case 0x2032: return '\'';              // Prime
+    case 0x2033: return '"';               // Double prime
+
+    default: return 0;  // Unmappable
+  }
+}
+
+// Decode a single UTF-8 character from a byte buffer.
+// Returns the Unicode codepoint and advances *pos past the full sequence.
+// If the sequence is invalid, returns 0xFFFD (replacement char) and advances by 1.
+//
+// buf:    input buffer
+// bufLen: total buffer length
+// pos:    pointer to current position (updated on return)
+inline uint32_t decodeUtf8Char(const char* buf, int bufLen, int* pos) {
+  int i = *pos;
+  if (i >= bufLen) return 0;
+
+  uint8_t c = (uint8_t)buf[i];
+
+  // ASCII (single byte)
+  if (c < 0x80) {
+    *pos = i + 1;
+    return c;
+  }
+
+  // Continuation byte without lead byte — skip
+  if (c < 0xC0) {
+    *pos = i + 1;
+    return 0xFFFD;
+  }
+
+  uint32_t codepoint;
+  int extraBytes;
+
+  if ((c & 0xE0) == 0xC0) {
+    codepoint = c & 0x1F;
+    extraBytes = 1;
+  } else if ((c & 0xF0) == 0xE0) {
+    codepoint = c & 0x0F;
+    extraBytes = 2;
+  } else if ((c & 0xF8) == 0xF0) {
+    codepoint = c & 0x07;
+    extraBytes = 3;
+  } else {
+    *pos = i + 1;
+    return 0xFFFD;
+  }
+
+  // Verify we have enough bytes and they're valid continuation bytes
+  if (i + extraBytes >= bufLen) {
+    *pos = i + 1;
+    return 0xFFFD;
+  }
+
+  for (int b = 1; b <= extraBytes; b++) {
+    uint8_t cb = (uint8_t)buf[i + b];
+    if ((cb & 0xC0) != 0x80) {
+      *pos = i + 1;
+      return 0xFFFD;
+    }
+    codepoint = (codepoint << 6) | (cb & 0x3F);
+  }
+
+  *pos = i + 1 + extraBytes;
+  return codepoint;
+}
+
+// Check if a byte is a UTF-8 continuation byte (10xxxxxx)
+inline bool isUtf8Continuation(uint8_t c) {
+  return (c & 0xC0) == 0x80;
+}

examples/companion_radio/ui-new/emojipicker.h

@@ -0,0 +1,216 @@
+#pragma once
+
+// Emoji Picker with scrolling grid and scroll bar
+// 5 columns, 4 visible rows, scrollable through all 65 emoji
+// WASD navigation, Enter to select, $/Q/Backspace to cancel
+
+#include <helpers/ui/DisplayDriver.h>
+#include "EmojiSprites.h"
+
+#define EMOJI_PICKER_COLS 5
+#define EMOJI_PICKER_VISIBLE_ROWS 4
+#define EMOJI_PICKER_TOTAL_ROWS ((EMOJI_COUNT + EMOJI_PICKER_COLS - 1) / EMOJI_PICKER_COLS)
+
+static const char* EMOJI_LABELS[EMOJI_COUNT] = {
+  "Lol",    // 0  joy
+  "Like",   // 1  thumbsup
+  "Sad",    // 2  frown
+  "WiFi",   // 3  wireless
+  "Inf",    // 4  infinity
+  "Rex",    // 5  trex
+  "Skul",   // 6  skull
+  "Cros",   // 7  cross
+  "Bolt",   // 8  lightning
+  "Hat",    // 9  tophat
+  "Moto",   // 10 motorcycle
+  "Leaf",   // 11 seedling
+  "AU",     // 12 flag_au
+  "Umbr",   // 13 umbrella
+  "Eye",    // 14 nazar
+  "Glob",   // 15 globe
+  "Rad",    // 16 radioactive
+  "Cow",    // 17 cow
+  "ET",     // 18 alien
+  "Inv",    // 19 invader
+  "Dagr",   // 20 dagger
+  "Grim",   // 21 grimace
+  "Mtn",    // 22 mountain
+  "End",    // 23 end_arrow
+  "Ring",   // 24 hollow_circle
+  "Drag",   // 25 dragon
+  "Web",    // 26 globe_meridians
+  "Eggp",   // 27 eggplant
+  "Shld",   // 28 shield
+  "Gogl",   // 29 goggles
+  "Lzrd",   // 30 lizard
+  "Zany",   // 31 zany_face
+  "Roo",    // 32 kangaroo
+  "Fthr",   // 33 feather
+  "Sun",    // 34 bright
+  "Wave",   // 35 part_alt
+  "Boat",   // 36 motorboat
+  "Domi",   // 37 domino
+  "Dish",   // 38 satellite
+  "Pass",   // 39 customs
+  "Cowb",   // 40 cowboy
+  "Whl",    // 41 wheel
+  "Koal",   // 42 koala
+  "Knob",   // 43 control_knobs
+  "Pch",    // 44 peach
+  "Race",   // 45 racing_car
+  "Mous",   // 46 mouse
+  "Shrm",   // 47 mushroom
+  "Bio",    // 48 biohazard
+  "Pnda",   // 49 panda
+  "Bang",   // 50 anger
+  "DrgF",   // 51 dragon_face
+  "Pagr",   // 52 pager
+  "Bee",    // 53 bee
+  "Bulb",   // 54 bulb
+  "Cat",    // 55 cat
+  "Flur",   // 56 fleur
+  "Moon",   // 57 moon
+  "Cafe",   // 58 coffee
+  "Toth",   // 59 tooth
+  "Prtz",   // 60 pretzel
+  "Abac",   // 61 abacus
+  "Moai",   // 62 moai
+  "Hiii",   // 63 tipping
+  "Hedg",   // 64 hedgehog
+};
+
+struct EmojiPicker {
+  int cursor;
+  int scrollRow;
+  
+  EmojiPicker() : cursor(0), scrollRow(0) {}
+  
+  void reset() { cursor = 0; scrollRow = 0; }
+  
+  void ensureVisible() {
+    int cursorRow = cursor / EMOJI_PICKER_COLS;
+    if (cursorRow < scrollRow) scrollRow = cursorRow;
+    else if (cursorRow >= scrollRow + EMOJI_PICKER_VISIBLE_ROWS)
+      scrollRow = cursorRow - EMOJI_PICKER_VISIBLE_ROWS + 1;
+    int maxScroll = EMOJI_PICKER_TOTAL_ROWS - EMOJI_PICKER_VISIBLE_ROWS;
+    if (maxScroll < 0) maxScroll = 0;
+    if (scrollRow > maxScroll) scrollRow = maxScroll;
+    if (scrollRow < 0) scrollRow = 0;
+  }
+  
+  // Returns emoji escape byte, 0xFF for cancel, 0 for no action
+  uint8_t handleInput(char key) {
+    int row = cursor / EMOJI_PICKER_COLS;
+    int col = cursor % EMOJI_PICKER_COLS;
+    
+    switch (key) {
+      case 'w': case 'W': case 0xF2:
+        if (row > 0) cursor -= EMOJI_PICKER_COLS;
+        break;
+      case 's': case 'S': case 0xF1:
+        if (cursor + EMOJI_PICKER_COLS < EMOJI_COUNT)
+          cursor += EMOJI_PICKER_COLS;
+        else if (row < EMOJI_PICKER_TOTAL_ROWS - 1)
+          cursor = EMOJI_COUNT - 1;
+        break;
+      case 'a': case 'A':
+        if (cursor > 0) cursor--;
+        break;
+      case 'd': case 'D':
+        if (cursor + 1 < EMOJI_COUNT) cursor++;
+        break;
+      case '\r':
+        ensureVisible();
+        return (uint8_t)(EMOJI_ESCAPE_START + cursor);
+      case '\b': case 'q': case 'Q': case KB_KEY_EMOJI:
+        return 0xFF;
+      default:
+        return 0;
+    }
+    ensureVisible();
+    return 0;
+  }
+  
+  void draw(DisplayDriver& display) {
+    display.setTextSize(1);
+    display.setCursor(0, 0);
+    display.setColor(DisplayDriver::GREEN);
+    display.print("Select Emoji");
+    
+    display.setColor(DisplayDriver::LIGHT);
+    display.drawRect(0, 11, display.width(), 1);
+    
+    display.setTextSize(0);
+    
+    int startY = 14;
+    int scrollBarW = 4;
+    int gridW = display.width() - scrollBarW - 1;
+    int cellW = gridW / EMOJI_PICKER_COLS;
+    int footerHeight = 14;
+    int gridH = display.height() - startY - footerHeight;
+    int cellH = gridH / EMOJI_PICKER_VISIBLE_ROWS;
+    
+    for (int vr = 0; vr < EMOJI_PICKER_VISIBLE_ROWS; vr++) {
+      int absRow = scrollRow + vr;
+      if (absRow >= EMOJI_PICKER_TOTAL_ROWS) break;
+      
+      for (int col = 0; col < EMOJI_PICKER_COLS; col++) {
+        int idx = absRow * EMOJI_PICKER_COLS + col;
+        if (idx >= EMOJI_COUNT) break;
+        
+        int cx = col * cellW;
+        int cy = startY + vr * cellH;
+        
+        if (idx == cursor) {
+          display.setColor(DisplayDriver::LIGHT);
+          display.drawRect(cx, cy, cellW, cellH);
+          display.drawRect(cx + 1, cy + 1, cellW - 2, cellH - 2);
+        }
+        
+        display.setColor(DisplayDriver::LIGHT);
+        const uint8_t* sprite = (const uint8_t*)pgm_read_ptr(&EMOJI_SPRITES_LG[idx]);
+        if (sprite) {
+          int spriteX = cx + (cellW - EMOJI_LG_W) / 2;
+          int spriteY = cy + 1;
+          display.drawXbm(spriteX, spriteY, sprite, EMOJI_LG_W, EMOJI_LG_H);
+        }
+        
+        display.setColor(DisplayDriver::YELLOW);
+        uint16_t labelW = display.getTextWidth(EMOJI_LABELS[idx]);
+        int labelX = cx + (cellW - (int)labelW) / 2;
+        if (labelX < cx) labelX = cx;
+        display.setCursor(labelX, cy + 14);
+        display.print(EMOJI_LABELS[idx]);
+      }
+    }
+    
+    // Scroll bar
+    int sbX = display.width() - scrollBarW;
+    display.setColor(DisplayDriver::LIGHT);
+    display.drawRect(sbX, startY, scrollBarW, gridH);
+    
+    if (EMOJI_PICKER_TOTAL_ROWS > EMOJI_PICKER_VISIBLE_ROWS) {
+      int thumbH = (EMOJI_PICKER_VISIBLE_ROWS * gridH) / EMOJI_PICKER_TOTAL_ROWS;
+      if (thumbH < 4) thumbH = 4;
+      int maxScroll = EMOJI_PICKER_TOTAL_ROWS - EMOJI_PICKER_VISIBLE_ROWS;
+      int thumbY = startY + (scrollRow * (gridH - thumbH)) / maxScroll;
+      for (int y = thumbY + 1; y < thumbY + thumbH - 1; y++)
+        display.drawRect(sbX + 1, y, scrollBarW - 2, 1);
+    } else {
+      for (int y = startY + 1; y < startY + gridH - 1; y++)
+        display.drawRect(sbX + 1, y, scrollBarW - 2, 1);
+    }
+    
+    // Footer
+    display.setTextSize(1);
+    int footerY = display.height() - 12;
+    display.setColor(DisplayDriver::LIGHT);
+    display.drawRect(0, footerY - 2, display.width(), 1);
+    display.setCursor(0, footerY);
+    display.setColor(DisplayDriver::YELLOW);
+    display.print("WASD:Nav Ent:Pick");
+    const char* ct = "$:Back";
+    display.setCursor(display.width() - display.getTextWidth(ct) - 2, footerY);
+    display.print(ct);
+  }
+};

examples/companion_radio/ui-new/webreaderdeps.cpp

@@ -0,0 +1,16 @@
+// WebReaderDeps.cpp
+// -----------------------------------------------------------------------
+// PlatformIO library dependency finder (LDF) hint file.
+//
+// The web reader's WiFi/HTTP includes live in WebReaderScreen.h (header-only),
+// but PlatformIO's LDF can't always trace framework library dependencies
+// through conditional #include chains in headers. This .cpp file exposes
+// the includes at the top level where the scanner reliably finds them.
+//
+// No actual code here — just #include directives for the dependency finder.
+// -----------------------------------------------------------------------
+#ifdef MECK_WEB_READER
+  #include <WiFi.h>
+  #include <HTTPClient.h>
+  #include <WiFiClientSecure.h>
+#endif

platformio.ini

@@ -27,6 +27,7 @@ build_flags = -w -DNDEBUG -DRADIOLIB_STATIC_ONLY=1 -DRADIOLIB_GODMODE=1
   -D LORA_FREQ=869.525
   -D LORA_BW=250
   -D LORA_SF=11
+  -D ENABLE_ADVERT_ON_BOOT=1
   -D ENABLE_PRIVATE_KEY_IMPORT=1   ; NOTE: comment these out for more secure firmware
   -D ENABLE_PRIVATE_KEY_EXPORT=1
   -D RADIOLIB_EXCLUDE_CC1101=1
@@ -58,6 +59,7 @@ platform = platformio/espressif32@6.11.0
 monitor_filters = esp32_exception_decoder
 extra_scripts = merge-bin.py
 build_flags = ${arduino_base.build_flags}
+  -D ESP32_PLATFORM
 ;  -D ESP32_CPU_FREQ=80          ; change it to your need
 build_src_filter = ${arduino_base.build_src_filter}
 
@@ -67,10 +69,10 @@ lib_deps =
   file://arch/esp32/AsyncElegantOTA
 
 ; esp32c6 uses arduino framework 3.x
-; WARNING: experimental. pioarduino on esp32c6 needs work - it's not considered stable and has issues.
+; WARNING: experimental. May not work as stable as other platforms.
 [esp32c6_base]
 extends = esp32_base
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.12/platform-espressif32.zip
+platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.13-1/platform-espressif32.zip
 
 ; ----------------- NRF52 ---------------------
 
@@ -79,7 +81,7 @@ extends = arduino_base
 platform = nordicnrf52
 platform_packages =
   framework-arduinoadafruitnrf52 @ 1.10700.0
-extra_scripts = 
+extra_scripts =
   create-uf2.py
   arch/nrf52/extra_scripts/patch_bluefruit.py
 build_flags = ${arduino_base.build_flags}
@@ -147,4 +149,4 @@ lib_deps =
   adafruit/Adafruit_VL53L0X @ ^1.2.4
   stevemarple/MicroNMEA @ ^2.0.6
   adafruit/Adafruit BME680 Library @ ^2.0.4
-  adafruit/Adafruit BMP085 Library @ ^1.2.4
+  adafruit/Adafruit BMP085 Library @ ^1.2.4

src/helpers/BaseChatMesh.h

@@ -58,9 +58,9 @@ class BaseChatMesh : public mesh::Mesh {
 
   friend class ContactsIterator;
 
-  ContactInfo contacts[MAX_CONTACTS];
+  ContactInfo* contacts;
   int num_contacts;
-  int sort_array[MAX_CONTACTS];
+  int* sort_array;
   int matching_peer_indexes[MAX_SEARCH_RESULTS];
   unsigned long txt_send_timeout;
 #ifdef MAX_GROUP_CHANNELS
@@ -78,6 +78,8 @@ protected:
   BaseChatMesh(mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::PacketManager& mgr, mesh::MeshTables& tables)
       : mesh::Mesh(radio, ms, rng, rtc, mgr, tables)
   { 
+    contacts = NULL;
+    sort_array = NULL;
     num_contacts = 0;
   #ifdef MAX_GROUP_CHANNELS
     memset(channels, 0, sizeof(channels));
@@ -90,6 +92,19 @@ protected:
 
   void bootstrapRTCfromContacts();
   void resetContacts() { num_contacts = 0; }
+
+  // Must be called from begin() before loadContacts/bootstrapRTCfromContacts.
+  // Deferred from constructor because PSRAM is not available during global init.
+  void initContacts() {
+    if (contacts != NULL) return;  // already initialized
+  #if defined(ESP32) && defined(BOARD_HAS_PSRAM)
+    contacts = (ContactInfo*)ps_calloc(MAX_CONTACTS, sizeof(ContactInfo));
+    sort_array = (int*)ps_calloc(MAX_CONTACTS, sizeof(int));
+  #else
+    contacts = new ContactInfo[MAX_CONTACTS]();
+    sort_array = new int[MAX_CONTACTS]();
+  #endif
+  }
   void populateContactFromAdvert(ContactInfo& ci, const mesh::Identity& id, const AdvertDataParser& parser, uint32_t timestamp);
   ContactInfo* allocateContactSlot(); // helper to find slot for new contact
 
@@ -169,4 +184,4 @@ public:
   int findChannelIdx(const mesh::GroupChannel& ch);
 
   void loop();
-};
+};

src/helpers/esp32/SerialBLEInterface.cpp

@@ -147,15 +147,21 @@ void SerialBLEInterface::enable() {
 }
 
 void SerialBLEInterface::disable() {
+  bool wasEnabled = _isEnabled;
   _isEnabled = false;
 
   BLE_DEBUG_PRINTLN("SerialBLEInterface::disable");
 
-  pServer->getAdvertising()->stop();
-  pServer->disconnect(last_conn_id);
-  pService->stop();
+  // Only try BLE operations if we were previously enabled
+  // (avoids accessing dead BLE objects after btStop/mem_release)
+  if (wasEnabled && pServer) {
+    pServer->getAdvertising()->stop();
+    pServer->disconnect(last_conn_id);
+    pService->stop();
+  }
   oldDeviceConnected = deviceConnected = false;
   adv_restart_time = 0;
+  clearBuffers();
 }
 
 size_t SerialBLEInterface::writeFrame(const uint8_t src[], size_t len) {
@@ -186,6 +192,8 @@ bool SerialBLEInterface::isWriteBusy() const {
 }
 
 size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
+  if (!_isEnabled) return 0;  // BLE disabled — skip all BLE operations
+
   if (send_queue_len > 0   // first, check send queue
     && millis() >= _last_write + BLE_WRITE_MIN_INTERVAL    // space the writes apart
   ) {
@@ -249,4 +257,4 @@ size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
 
 bool SerialBLEInterface::isConnected() const {
   return deviceConnected;  //pServer != NULL && pServer->getConnectedCount() > 0;
-}
+}

src/helpers/esp32/SerialBLEInterface.h

@@ -88,4 +88,4 @@ public:
 #else
   #define BLE_DEBUG_PRINT(...) {}
   #define BLE_DEBUG_PRINTLN(...) {}
-#endif
+#endif

src/helpers/ui/GxEPDDisplay.cpp

@@ -84,6 +84,10 @@ void GxEPDDisplay::startFrame(Color bkg) {
 void GxEPDDisplay::setTextSize(int sz) {
   display_crc.update<int>(sz);
   switch(sz) {
+    case 0:  // Tiny - built-in 6x8 pixel font
+      display.setFont(NULL);
+      display.setTextSize(1);
+      break;
     case 1:  // Small - use 9pt (was 9pt)
       display.setFont(&FreeSans9pt7b);
       break;

variants/lilygo_tdeck_pro/CPUPowerManager.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <Arduino.h>
+
+// CPU Frequency Scaling for ESP32-S3
+//
+// Typical current draw (CPU only, rough):
+//   240 MHz  ~70-80 mA
+//   160 MHz  ~50-60 mA
+//    80 MHz  ~30-40 mA
+//
+// SPI peripherals and UART use their own clock dividers from the APB clock,
+// so LoRa, e-ink, and GPS serial all work fine at 80MHz.
+
+#ifdef ESP32
+
+#ifndef CPU_FREQ_IDLE
+#define CPU_FREQ_IDLE   80     // MHz — normal mesh listening
+#endif
+
+#ifndef CPU_FREQ_BOOST
+#define CPU_FREQ_BOOST  240    // MHz — heavy processing
+#endif
+
+#ifndef CPU_BOOST_TIMEOUT_MS
+#define CPU_BOOST_TIMEOUT_MS  10000  // 10 seconds
+#endif
+
+class CPUPowerManager {
+public:
+  CPUPowerManager() : _boosted(false), _boost_started(0) {}
+
+  void begin() {
+    setCpuFrequencyMhz(CPU_FREQ_IDLE);
+    _boosted = false;
+    MESH_DEBUG_PRINTLN("CPU power: idle at %d MHz", CPU_FREQ_IDLE);
+  }
+
+  void loop() {
+    if (_boosted && (millis() - _boost_started >= CPU_BOOST_TIMEOUT_MS)) {
+      setIdle();
+    }
+  }
+
+  void setBoost() {
+    if (!_boosted) {
+      setCpuFrequencyMhz(CPU_FREQ_BOOST);
+      _boosted = true;
+      MESH_DEBUG_PRINTLN("CPU power: boosted to %d MHz", CPU_FREQ_BOOST);
+    }
+    _boost_started = millis();
+  }
+
+  void setIdle() {
+    if (_boosted) {
+      setCpuFrequencyMhz(CPU_FREQ_IDLE);
+      _boosted = false;
+      MESH_DEBUG_PRINTLN("CPU power: idle at %d MHz", CPU_FREQ_IDLE);
+    }
+  }
+
+  bool isBoosted() const { return _boosted; }
+  uint32_t getFrequencyMHz() const { return getCpuFrequencyMhz(); }
+
+private:
+  bool _boosted;
+  unsigned long _boost_started;
+};
+
+#endif // ESP32

variants/lilygo_tdeck_pro/GPSDutyCycle.h

@@ -0,0 +1,185 @@
+#pragma once
+
+#include <Arduino.h>
+#include "variant.h"
+#include "GPSStreamCounter.h"
+
+// GPS Duty Cycle Manager
+// Controls the hardware GPS enable pin (PIN_GPS_EN) to save power.
+// When enabled, cycles between acquiring a fix and sleeping with power cut.
+//
+// States:
+//   OFF        – User has disabled GPS. Hardware power is cut.
+//   ACQUIRING  – GPS module powered on, waiting for a fix or timeout.
+//   SLEEPING   – GPS module powered off, timer counting down to next cycle.
+
+#if HAS_GPS
+
+// How long to leave GPS powered on while acquiring a fix (ms)
+#ifndef GPS_ACQUIRE_TIMEOUT_MS
+#define GPS_ACQUIRE_TIMEOUT_MS    180000   // 3 minutes
+#endif
+
+// How long to sleep between acquisition cycles (ms)
+#ifndef GPS_SLEEP_DURATION_MS
+#define GPS_SLEEP_DURATION_MS     900000   // 15 minutes
+#endif
+
+// If we get a fix quickly, power off immediately but still respect
+// a minimum on-time so the RTC can sync properly
+#ifndef GPS_MIN_ON_TIME_MS
+#define GPS_MIN_ON_TIME_MS        5000     // 5 seconds after fix
+#endif
+
+enum class GPSDutyState : uint8_t {
+  OFF = 0,       // User-disabled, hardware power off
+  ACQUIRING,     // Hardware on, waiting for fix
+  SLEEPING       // Hardware off, timer running
+};
+
+class GPSDutyCycle {
+public:
+  GPSDutyCycle() : _state(GPSDutyState::OFF), _state_entered(0),
+                   _last_fix_time(0), _got_fix(false), _time_synced(false),
+                   _stream(nullptr) {}
+
+  // Attach the stream counter so we can reset it on power cycles
+  void setStreamCounter(GPSStreamCounter* stream) { _stream = stream; }
+
+  // Call once in setup() after board.begin() and GPS serial init.
+  void begin(bool initial_enable) {
+    if (initial_enable) {
+      _powerOn();
+      _setState(GPSDutyState::ACQUIRING);
+    } else {
+      _powerOff();
+      _setState(GPSDutyState::OFF);
+    }
+  }
+
+  // Call every iteration of loop().
+  // Returns true if GPS hardware is currently powered on.
+  bool loop() {
+    switch (_state) {
+      case GPSDutyState::OFF:
+        return false;
+
+      case GPSDutyState::ACQUIRING: {
+        unsigned long elapsed = millis() - _state_entered;
+
+        if (_got_fix && elapsed >= GPS_MIN_ON_TIME_MS) {
+          MESH_DEBUG_PRINTLN("GPS duty: fix acquired, powering off for %u min",
+                             (unsigned)(GPS_SLEEP_DURATION_MS / 60000));
+          _powerOff();
+          _setState(GPSDutyState::SLEEPING);
+          return false;
+        }
+
+        if (elapsed >= GPS_ACQUIRE_TIMEOUT_MS) {
+          MESH_DEBUG_PRINTLN("GPS duty: acquire timeout (%us), sleeping",
+                             (unsigned)(GPS_ACQUIRE_TIMEOUT_MS / 1000));
+          _powerOff();
+          _setState(GPSDutyState::SLEEPING);
+          return false;
+        }
+
+        return true;
+      }
+
+      case GPSDutyState::SLEEPING: {
+        if (millis() - _state_entered >= GPS_SLEEP_DURATION_MS) {
+          MESH_DEBUG_PRINTLN("GPS duty: waking up for next acquisition cycle");
+          _got_fix = false;
+          _powerOn();
+          _setState(GPSDutyState::ACQUIRING);
+          return true;
+        }
+        return false;
+      }
+    }
+    return false;
+  }
+
+  void notifyFix() {
+    if (_state == GPSDutyState::ACQUIRING && !_got_fix) {
+      _got_fix = true;
+      _last_fix_time = millis();
+      MESH_DEBUG_PRINTLN("GPS duty: fix notification received");
+    }
+  }
+
+  void notifyTimeSync() {
+    _time_synced = true;
+  }
+
+  void enable() {
+    if (_state == GPSDutyState::OFF) {
+      _got_fix = false;
+      _powerOn();
+      _setState(GPSDutyState::ACQUIRING);
+      MESH_DEBUG_PRINTLN("GPS duty: enabled, starting acquisition");
+    }
+  }
+
+  void disable() {
+    _powerOff();
+    _setState(GPSDutyState::OFF);
+    _got_fix = false;
+    MESH_DEBUG_PRINTLN("GPS duty: disabled, power off");
+  }
+
+  void forceWake() {
+    if (_state == GPSDutyState::SLEEPING) {
+      _got_fix = false;
+      _powerOn();
+      _setState(GPSDutyState::ACQUIRING);
+      MESH_DEBUG_PRINTLN("GPS duty: forced wake for user request");
+    }
+  }
+
+  GPSDutyState getState() const { return _state; }
+  bool isHardwareOn() const { return _state == GPSDutyState::ACQUIRING; }
+  bool hadFix() const { return _got_fix; }
+  bool hasTimeSynced() const { return _time_synced; }
+
+  uint32_t sleepRemainingSecs() const {
+    if (_state != GPSDutyState::SLEEPING) return 0;
+    unsigned long elapsed = millis() - _state_entered;
+    if (elapsed >= GPS_SLEEP_DURATION_MS) return 0;
+    return (GPS_SLEEP_DURATION_MS - elapsed) / 1000;
+  }
+
+  uint32_t acquireElapsedSecs() const {
+    if (_state != GPSDutyState::ACQUIRING) return 0;
+    return (millis() - _state_entered) / 1000;
+  }
+
+private:
+  void _powerOn() {
+    #ifdef PIN_GPS_EN
+      digitalWrite(PIN_GPS_EN, GPS_EN_ACTIVE);
+      delay(10);
+    #endif
+    if (_stream) _stream->resetCounters();
+  }
+
+  void _powerOff() {
+    #ifdef PIN_GPS_EN
+      digitalWrite(PIN_GPS_EN, !GPS_EN_ACTIVE);
+    #endif
+  }
+
+  void _setState(GPSDutyState s) {
+    _state = s;
+    _state_entered = millis();
+  }
+
+  GPSDutyState _state;
+  unsigned long _state_entered;
+  unsigned long _last_fix_time;
+  bool _got_fix;
+  bool _time_synced;
+  GPSStreamCounter* _stream;
+};
+
+#endif // HAS_GPS

variants/lilygo_tdeck_pro/GPSStreamCounter.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <Arduino.h>
+
+// Transparent Stream wrapper that counts NMEA sentences (newline-delimited)
+// flowing from the GPS serial port to the MicroNMEA parser.
+//
+// Usage:  Instead of  MicroNMEALocationProvider gps(Serial2, &rtc_clock);
+//         Use:        GPSStreamCounter gpsStream(Serial2);
+//                     MicroNMEALocationProvider gps(gpsStream, &rtc_clock);
+//
+// Every read() call passes through to the underlying stream; when a '\n'
+// is seen the sentence counter increments.  This lets the UI display a
+// live "nmea" count so users can confirm the baud rate is correct and
+// the GPS module is actually sending data.
+
+class GPSStreamCounter : public Stream {
+public:
+  GPSStreamCounter(Stream& inner)
+    : _inner(inner), _sentences(0), _sentences_snapshot(0),
+      _last_snapshot(0), _sentences_per_sec(0) {}
+
+  // --- Stream read interface (passes through) ---
+  int available() override { return _inner.available(); }
+  int peek()      override { return _inner.peek(); }
+
+  int read() override {
+    int c = _inner.read();
+    if (c == '\n') {
+      _sentences++;
+    }
+    return c;
+  }
+
+  // --- Stream write interface (pass through for NMEA commands if needed) ---
+  size_t write(uint8_t b) override { return _inner.write(b); }
+
+  // --- Sentence counting API ---
+
+  // Total sentences received since boot (or last reset)
+  uint32_t getSentenceCount() const { return _sentences; }
+
+  // Sentences received per second (updated each time you call it,
+  // with a 1-second rolling window)
+  uint16_t getSentencesPerSec() {
+    unsigned long now = millis();
+    unsigned long elapsed = now - _last_snapshot;
+    if (elapsed >= 1000) {
+      uint32_t delta = _sentences - _sentences_snapshot;
+      // Scale to per-second if interval wasn't exactly 1000ms
+      _sentences_per_sec = (uint16_t)((delta * 1000UL) / elapsed);
+      _sentences_snapshot = _sentences;
+      _last_snapshot = now;
+    }
+    return _sentences_per_sec;
+  }
+
+  // Reset all counters (e.g. when GPS hardware power cycles)
+  void resetCounters() {
+    _sentences = 0;
+    _sentences_snapshot = 0;
+    _sentences_per_sec = 0;
+    _last_snapshot = millis();
+  }
+
+private:
+  Stream& _inner;
+  volatile uint32_t _sentences;
+  uint32_t _sentences_snapshot;
+  unsigned long _last_snapshot;
+  uint16_t _sentences_per_sec;
+};

variants/lilygo_tdeck_pro/TDeckBoard.cpp

@@ -1,24 +1,25 @@
 #include <Arduino.h>
 #include "variant.h"
 #include "TDeckBoard.h"
+#include <Mesh.h>  // For MESH_DEBUG_PRINTLN
 
 uint32_t deviceOnline = 0x00;
 
 void TDeckBoard::begin() {
   
-  Serial.println("TDeckBoard::begin() - starting");
+  MESH_DEBUG_PRINTLN("TDeckBoard::begin() - starting");
   
   // Enable peripheral power (keyboard, sensors, etc.) FIRST
   // This powers the BQ27220 fuel gauge and other I2C devices
   pinMode(PIN_PERF_POWERON, OUTPUT);
   digitalWrite(PIN_PERF_POWERON, HIGH);
   delay(50);  // Allow peripherals to power up before I2C init
-  Serial.println("TDeckBoard::begin() - peripheral power enabled");
+  MESH_DEBUG_PRINTLN("TDeckBoard::begin() - peripheral power enabled");
 
   // Initialize I2C with correct pins for T-Deck Pro
   Wire.begin(I2C_SDA, I2C_SCL);
   Wire.setClock(100000);  // 100kHz for reliable fuel gauge communication
-  Serial.println("TDeckBoard::begin() - I2C initialized");
+  MESH_DEBUG_PRINTLN("TDeckBoard::begin() - I2C initialized");
   
   // Now call parent class begin (after power and I2C are ready)
   ESP32Board::begin();
@@ -28,7 +29,7 @@ void TDeckBoard::begin() {
     pinMode(P_LORA_EN, OUTPUT);
     digitalWrite(P_LORA_EN, HIGH);
     delay(10);  // Allow module to power up
-    Serial.println("TDeckBoard::begin() - LoRa power enabled");
+    MESH_DEBUG_PRINTLN("TDeckBoard::begin() - LoRa power enabled");
   #endif
 
   // Enable GPS module power and initialize Serial2
@@ -37,14 +38,20 @@ void TDeckBoard::begin() {
       pinMode(PIN_GPS_EN, OUTPUT);
       digitalWrite(PIN_GPS_EN, GPS_EN_ACTIVE);  // GPS_EN_ACTIVE is 1 (HIGH)
       delay(100);  // Allow GPS to power up
-      Serial.println("TDeckBoard::begin() - GPS power enabled");
+      MESH_DEBUG_PRINTLN("TDeckBoard::begin() - GPS power enabled");
     #endif
     
     // Initialize Serial2 for GPS with correct pins
     Serial2.begin(GPS_BAUDRATE, SERIAL_8N1, GPS_RX_PIN, GPS_TX_PIN);
-    Serial.print("TDeckBoard::begin() - GPS Serial2 initialized at ");
-    Serial.print(GPS_BAUDRATE);
-    Serial.println(" baud");
+    MESH_DEBUG_PRINTLN("TDeckBoard::begin() - GPS Serial2 initialized at %d baud", GPS_BAUDRATE);
+  #endif
+
+  // Disable 4G modem power (only present on 4G version, not audio version)
+  // This turns off the red status LED on the modem module
+  #ifdef MODEM_POWER_EN
+    pinMode(MODEM_POWER_EN, OUTPUT);
+    digitalWrite(MODEM_POWER_EN, LOW);  // Cut power to modem
+    MESH_DEBUG_PRINTLN("TDeckBoard::begin() - 4G modem power disabled");
   #endif
 
   // Configure user button
@@ -65,15 +72,14 @@ void TDeckBoard::begin() {
     rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1);
   }
   
-  // Test BQ27220 communication
+  // Test BQ27220 communication and configure design capacity
   #if HAS_BQ27220
     uint16_t voltage = getBattMilliVolts();
-    Serial.print("TDeckBoard::begin() - Battery voltage: ");
-    Serial.print(voltage);
-    Serial.println(" mV");
+    MESH_DEBUG_PRINTLN("TDeckBoard::begin() - Battery voltage: %d mV", voltage);
+    configureFuelGauge();
   #endif
   
-  Serial.println("TDeckBoard::begin() - complete");
+  MESH_DEBUG_PRINTLN("TDeckBoard::begin() - complete");
 }
 
 uint16_t TDeckBoard::getBattMilliVolts() {
@@ -81,13 +87,13 @@ uint16_t TDeckBoard::getBattMilliVolts() {
     Wire.beginTransmission(BQ27220_I2C_ADDR);
     Wire.write(BQ27220_REG_VOLTAGE);
     if (Wire.endTransmission(false) != 0) {
-      Serial.println("BQ27220: I2C error reading voltage");
+      MESH_DEBUG_PRINTLN("BQ27220: I2C error reading voltage");
       return 0;
     }
     
     uint8_t count = Wire.requestFrom((uint8_t)BQ27220_I2C_ADDR, (uint8_t)2);
     if (count != 2) {
-      Serial.println("BQ27220: Read error - wrong byte count");
+      MESH_DEBUG_PRINTLN("BQ27220: Read error - wrong byte count");
       return 0;
     }
     
@@ -118,4 +124,357 @@ uint8_t TDeckBoard::getBatteryPercent() {
   #else
     return 0;
   #endif
+}
+
+// ---- BQ27220 extended register helpers ----
+
+#if HAS_BQ27220
+// Read a 16-bit register from BQ27220. Returns 0 on I2C error.
+static uint16_t bq27220_read16(uint8_t reg) {
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(reg);
+  if (Wire.endTransmission(false) != 0) return 0;
+  if (Wire.requestFrom((uint8_t)BQ27220_I2C_ADDR, (uint8_t)2) != 2) return 0;
+  uint16_t val = Wire.read();
+  val |= (Wire.read() << 8);
+  return val;
+}
+
+// Read a single byte from BQ27220 register.
+static uint8_t bq27220_read8(uint8_t reg) {
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(reg);
+  if (Wire.endTransmission(false) != 0) return 0;
+  if (Wire.requestFrom((uint8_t)BQ27220_I2C_ADDR, (uint8_t)1) != 1) return 0;
+  return Wire.read();
+}
+
+// Write a 16-bit subcommand to BQ27220 Control register (0x00).
+// Subcommands control unsealing, config mode, sealing, etc.
+static bool bq27220_writeControl(uint16_t subcmd) {
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(0x00);                    // Control register
+  Wire.write(subcmd & 0xFF);           // LSB first
+  Wire.write((subcmd >> 8) & 0xFF);    // MSB
+  return Wire.endTransmission() == 0;
+}
+#endif
+
+// ---- BQ27220 Design Capacity configuration ----
+// The BQ27220 ships with a 3000 mAh default. The T-Deck Pro uses a 1400 mAh
+// cell. This function checks on boot and writes the correct value via the
+// MAC Data Memory interface if needed. The value persists in battery-backed
+// RAM, so this typically only writes once (or after a full battery disconnect).
+//
+// Procedure follows TI TRM SLUUBD4A Section 6.1:
+//   1. Unseal  →  2. Full Access  →  3. Enter CFG_UPDATE
+//   4. Write Design Capacity via MAC  →  5. Exit CFG_UPDATE  →  6. Seal
+
+bool TDeckBoard::configureFuelGauge(uint16_t designCapacity_mAh) {
+#if HAS_BQ27220
+  // Read current design capacity from standard command register
+  uint16_t currentDC = bq27220_read16(BQ27220_REG_DESIGN_CAP);
+  Serial.printf("BQ27220: Design Capacity = %d mAh (target %d)\n", currentDC, designCapacity_mAh);
+
+  if (currentDC == designCapacity_mAh) {
+    // Design Capacity correct, but check if Full Charge Capacity is sane.
+    // After a Design Capacity change, FCC may still hold the old factory
+    // value (e.g. 3000 mAh) until a RESET forces reinitialization.
+    uint16_t fcc = bq27220_read16(BQ27220_REG_FULL_CAP);
+    Serial.printf("BQ27220: Design Capacity already correct, FCC=%d mAh\n", fcc);
+    if (fcc >= designCapacity_mAh * 3 / 2) {
+      // FCC is >=150% of design — stale from factory defaults.
+      // The gauge derives FCC from Design Energy (not just Design Capacity).
+      // Design Energy = capacity × nominal voltage (3.7V for LiPo).
+      // If Design Energy still reflects 3000 mAh, FCC stays at 3000.
+      // Fix: enter CFG_UPDATE and write correct Design Energy.
+      Serial.printf("BQ27220: FCC %d >> DC %d, updating Design Energy\n",
+                    fcc, designCapacity_mAh);
+
+      uint16_t designEnergy = (uint16_t)((uint32_t)designCapacity_mAh * 37 / 10);
+      Serial.printf("BQ27220: Target Design Energy = %d mWh\n", designEnergy);
+
+      // Unseal
+      bq27220_writeControl(0x0414); delay(2);
+      bq27220_writeControl(0x3672); delay(2);
+      // Full Access
+      bq27220_writeControl(0xFFFF); delay(2);
+      bq27220_writeControl(0xFFFF); delay(2);
+      // Enter CFG_UPDATE
+      bq27220_writeControl(0x0090);
+      bool ready = false;
+      for (int i = 0; i < 50; i++) {
+        delay(20);
+        uint16_t opSt = bq27220_read16(BQ27220_REG_OP_STATUS);
+        if (opSt & 0x0400) { ready = true; break; }
+      }
+      if (ready) {
+        // Design Energy is at data memory address 0x92A1 (2 bytes after DC at 0x929F)
+        // Read old values for checksum calculation
+        Wire.beginTransmission(BQ27220_I2C_ADDR);
+        Wire.write(0x3E); Wire.write(0xA1); Wire.write(0x92);
+        Wire.endTransmission();
+        delay(10);
+        uint8_t oldMSB = bq27220_read8(0x40);
+        uint8_t oldLSB = bq27220_read8(0x41);
+        uint8_t oldChk = bq27220_read8(0x60);
+        uint8_t dLen   = bq27220_read8(0x61);
+
+        uint8_t newMSB = (designEnergy >> 8) & 0xFF;
+        uint8_t newLSB = designEnergy & 0xFF;
+        uint8_t temp = (255 - oldChk - oldMSB - oldLSB);
+        uint8_t newChk = 255 - ((temp + newMSB + newLSB) & 0xFF);
+
+        Serial.printf("BQ27220: DE old=0x%02X%02X new=0x%02X%02X chk=0x%02X\n",
+                      oldMSB, oldLSB, newMSB, newLSB, newChk);
+
+        // Write new Design Energy
+        Wire.beginTransmission(BQ27220_I2C_ADDR);
+        Wire.write(0x3E); Wire.write(0xA1); Wire.write(0x92);
+        Wire.write(newMSB); Wire.write(newLSB);
+        Wire.endTransmission();
+        delay(5);
+        // Write checksum
+        Wire.beginTransmission(BQ27220_I2C_ADDR);
+        Wire.write(0x60); Wire.write(newChk); Wire.write(dLen);
+        Wire.endTransmission();
+        delay(10);
+
+        // Exit CFG_UPDATE with reinit
+        bq27220_writeControl(0x0091);
+        delay(200);
+        Serial.println("BQ27220: Design Energy updated, exited CFG_UPDATE");
+      } else {
+        Serial.println("BQ27220: Failed to enter CFG_UPDATE for DE fix");
+        bq27220_writeControl(0x0092);  // Exit cleanly
+      }
+
+      // Seal
+      bq27220_writeControl(0x0030);
+      delay(5);
+
+      fcc = bq27220_read16(BQ27220_REG_FULL_CAP);
+      Serial.printf("BQ27220: FCC after Design Energy update: %d mAh\n", fcc);
+    }
+    return true;
+  }
+
+  Serial.printf("BQ27220: Updating Design Capacity from %d to %d mAh\n", currentDC, designCapacity_mAh);
+
+  // Step 1: Unseal (default unseal keys)
+  bq27220_writeControl(0x0414);
+  delay(2);
+  bq27220_writeControl(0x3672);
+  delay(2);
+
+  // Step 2: Enter Full Access mode
+  bq27220_writeControl(0xFFFF);
+  delay(2);
+  bq27220_writeControl(0xFFFF);
+  delay(2);
+
+  // Step 3: Enter CFG_UPDATE mode
+  bq27220_writeControl(0x0090);
+
+  // Wait for CFGUPMODE bit (bit 10) in OperationStatus register
+  bool cfgReady = false;
+  for (int i = 0; i < 50; i++) {
+    delay(20);
+    uint16_t opStatus = bq27220_read16(BQ27220_REG_OP_STATUS);
+    Serial.printf("BQ27220: OperationStatus = 0x%04X (attempt %d)\n", opStatus, i);
+    if (opStatus & 0x0400) {  // CFGUPMODE is bit 10
+      cfgReady = true;
+      break;
+    }
+  }
+  if (!cfgReady) {
+    Serial.println("BQ27220: ERROR - Timeout waiting for CFGUPDATE mode");
+    bq27220_writeControl(0x0092);  // Try to exit cleanly
+    bq27220_writeControl(0x0030);  // Re-seal
+    return false;
+  }
+  Serial.println("BQ27220: Entered CFGUPDATE mode");
+
+  // Step 4: Write Design Capacity via MAC Data Memory interface
+  // Design Capacity mAh lives at data memory address 0x929F
+
+  // 4a. Select the data memory block by writing address to 0x3E-0x3F
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(0x3E);   // MACDataControl register
+  Wire.write(0x9F);   // Address low byte
+  Wire.write(0x92);   // Address high byte
+  Wire.endTransmission();
+  delay(10);
+
+  // 4b. Read old data (MSB, LSB) and checksum for differential update
+  uint8_t oldMSB     = bq27220_read8(0x40);
+  uint8_t oldLSB     = bq27220_read8(0x41);
+  uint8_t oldChksum  = bq27220_read8(0x60);
+  uint8_t dataLen    = bq27220_read8(0x61);
+
+  Serial.printf("BQ27220: Old DC bytes=0x%02X 0x%02X chk=0x%02X len=%d\n",
+                     oldMSB, oldLSB, oldChksum, dataLen);
+
+  // 4c. Compute new values (BQ27220 stores big-endian in data memory)
+  uint8_t newMSB = (designCapacity_mAh >> 8) & 0xFF;
+  uint8_t newLSB = designCapacity_mAh & 0xFF;
+
+  // Differential checksum: remove old bytes, add new bytes
+  uint8_t temp = (255 - oldChksum - oldMSB - oldLSB);
+  uint8_t newChksum = 255 - ((temp + newMSB + newLSB) & 0xFF);
+
+  Serial.printf("BQ27220: New DC bytes=0x%02X 0x%02X chk=0x%02X\n",
+                     newMSB, newLSB, newChksum);
+
+  // 4d. Write address + new data as a single block transaction
+  //     BQ27220 MAC requires: [0x3E] [addr_lo] [addr_hi] [data...]
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(0x3E);    // Start at MACDataControl
+  Wire.write(0x9F);    // Address low byte
+  Wire.write(0x92);    // Address high byte
+  Wire.write(newMSB);  // Data byte 0 (at 0x40)
+  Wire.write(newLSB);  // Data byte 1 (at 0x41)
+  uint8_t writeResult = Wire.endTransmission();
+  Serial.printf("BQ27220: Write block result = %d\n", writeResult);
+
+  // 4e. Write updated checksum and length
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(0x60);
+  Wire.write(newChksum);
+  Wire.write(dataLen);
+  writeResult = Wire.endTransmission();
+  Serial.printf("BQ27220: Write checksum result = %d\n", writeResult);
+  delay(10);
+
+  // 4f. Verify the write took effect before exiting config mode
+  //     Re-read the block to confirm
+  Wire.beginTransmission(BQ27220_I2C_ADDR);
+  Wire.write(0x3E);
+  Wire.write(0x9F);
+  Wire.write(0x92);
+  Wire.endTransmission();
+  delay(10);
+  uint8_t verMSB = bq27220_read8(0x40);
+  uint8_t verLSB = bq27220_read8(0x41);
+  Serial.printf("BQ27220: Verify in CFGUPDATE: DC bytes=0x%02X 0x%02X (%d mAh)\n",
+                     verMSB, verLSB, (verMSB << 8) | verLSB);
+
+  // Step 4g: Also update Design Energy (address 0x92A1) while in CFG_UPDATE.
+  // Design Energy = capacity × 3.7V (nominal LiPo voltage).
+  // The gauge uses both DC and DE to compute Full Charge Capacity.
+  {
+    uint16_t designEnergy = (uint16_t)((uint32_t)designCapacity_mAh * 37 / 10);
+    Wire.beginTransmission(BQ27220_I2C_ADDR);
+    Wire.write(0x3E); Wire.write(0xA1); Wire.write(0x92);
+    Wire.endTransmission();
+    delay(10);
+    uint8_t deOldMSB = bq27220_read8(0x40);
+    uint8_t deOldLSB = bq27220_read8(0x41);
+    uint8_t deOldChk = bq27220_read8(0x60);
+    uint8_t deLen    = bq27220_read8(0x61);
+
+    uint8_t deNewMSB = (designEnergy >> 8) & 0xFF;
+    uint8_t deNewLSB = designEnergy & 0xFF;
+    uint8_t deTemp = (255 - deOldChk - deOldMSB - deOldLSB);
+    uint8_t deNewChk = 255 - ((deTemp + deNewMSB + deNewLSB) & 0xFF);
+
+    Serial.printf("BQ27220: Design Energy: old=%d new=%d mWh\n",
+                  (deOldMSB << 8) | deOldLSB, designEnergy);
+
+    Wire.beginTransmission(BQ27220_I2C_ADDR);
+    Wire.write(0x3E); Wire.write(0xA1); Wire.write(0x92);
+    Wire.write(deNewMSB); Wire.write(deNewLSB);
+    Wire.endTransmission();
+    delay(5);
+    Wire.beginTransmission(BQ27220_I2C_ADDR);
+    Wire.write(0x60); Wire.write(deNewChk); Wire.write(deLen);
+    Wire.endTransmission();
+    delay(10);
+  }
+
+  // Step 5: Exit CFG_UPDATE (with reinit to apply changes immediately)
+  bq27220_writeControl(0x0091);  // EXIT_CFG_UPDATE_REINIT
+  Serial.println("BQ27220: Sent EXIT_CFG_UPDATE_REINIT, waiting...");
+  delay(200);  // Allow gauge to reinitialize
+
+  // Verify
+  uint16_t verifyDC = bq27220_read16(BQ27220_REG_DESIGN_CAP);
+  Serial.printf("BQ27220: Design Capacity now reads %d mAh (expected %d)\n",
+                     verifyDC, designCapacity_mAh);
+
+  uint16_t newFCC = bq27220_read16(BQ27220_REG_FULL_CAP);
+  Serial.printf("BQ27220: Full Charge Capacity: %d mAh\n", newFCC);
+
+  if (verifyDC == designCapacity_mAh) {
+    Serial.println("BQ27220: Configuration SUCCESS");
+  } else {
+    Serial.println("BQ27220: Configuration FAILED");
+  }
+
+  // Step 6: Seal the device
+  bq27220_writeControl(0x0030);
+  delay(5);
+
+  return verifyDC == designCapacity_mAh;
+#else
+  return false;
+#endif
+}
+
+int16_t TDeckBoard::getAvgCurrent() {
+  #if HAS_BQ27220
+    return (int16_t)bq27220_read16(BQ27220_REG_AVG_CURRENT);
+  #else
+    return 0;
+  #endif
+}
+
+int16_t TDeckBoard::getAvgPower() {
+  #if HAS_BQ27220
+    return (int16_t)bq27220_read16(BQ27220_REG_AVG_POWER);
+  #else
+    return 0;
+  #endif
+}
+
+uint16_t TDeckBoard::getTimeToEmpty() {
+  #if HAS_BQ27220
+    return bq27220_read16(BQ27220_REG_TIME_TO_EMPTY);
+  #else
+    return 0xFFFF;
+  #endif
+}
+
+uint16_t TDeckBoard::getRemainingCapacity() {
+  #if HAS_BQ27220
+    return bq27220_read16(BQ27220_REG_REMAIN_CAP);
+  #else
+    return 0;
+  #endif
+}
+
+uint16_t TDeckBoard::getFullChargeCapacity() {
+  #if HAS_BQ27220
+    return bq27220_read16(BQ27220_REG_FULL_CAP);
+  #else
+    return 0;
+  #endif
+}
+
+uint16_t TDeckBoard::getDesignCapacity() {
+  #if HAS_BQ27220
+    return bq27220_read16(BQ27220_REG_DESIGN_CAP);
+  #else
+    return 0;
+  #endif
+}
+
+int16_t TDeckBoard::getBattTemperature() {
+  #if HAS_BQ27220
+    uint16_t raw = bq27220_read16(BQ27220_REG_TEMPERATURE);
+    // BQ27220 returns 0.1°K, convert to 0.1°C (273.1K = 0°C)
+    return (int16_t)(raw - 2731);
+  #else
+    return 0;
+  #endif
 }

variants/lilygo_tdeck_pro/TDeckBoard.h

@@ -7,15 +7,35 @@
 #include <driver/rtc_io.h>
 
 // BQ27220 Fuel Gauge Registers
-#define BQ27220_REG_VOLTAGE 0x08
-#define BQ27220_REG_CURRENT 0x0C
-#define BQ27220_REG_SOC 0x2C
+#define BQ27220_REG_TEMPERATURE    0x06  // Temperature (0.1°K)
+#define BQ27220_REG_VOLTAGE        0x08
+#define BQ27220_REG_CURRENT        0x0C  // Instantaneous current (mA, signed)
+#define BQ27220_REG_SOC            0x2C
+#define BQ27220_REG_REMAIN_CAP     0x10  // Remaining capacity (mAh)
+#define BQ27220_REG_FULL_CAP       0x12  // Full charge capacity (mAh)
+#define BQ27220_REG_AVG_CURRENT    0x14  // Average current (mA, signed)
+#define BQ27220_REG_TIME_TO_EMPTY  0x16  // Minutes until empty
+#define BQ27220_REG_AVG_POWER      0x24  // Average power (mW, signed)
+#define BQ27220_REG_DESIGN_CAP     0x3C  // Design capacity (mAh, read-only standard cmd)
+#define BQ27220_REG_OP_STATUS      0x3A  // Operation status
 #define BQ27220_I2C_ADDR 0x55
 
+// T-Deck Pro battery capacity (all variants use 1400 mAh cell)
+#ifndef BQ27220_DESIGN_CAPACITY_MAH
+#define BQ27220_DESIGN_CAPACITY_MAH  1400
+#endif
+
 class TDeckBoard : public ESP32Board {
 public:
   void begin();
 
+  void powerOff() override {
+    // Stop Bluetooth before power off
+    btStop();
+    // Don't call parent or enterDeepSleep - let normal shutdown continue
+    // Display will show "hibernating..." text
+  }
+
   void enterDeepSleep(uint32_t secs, int pin_wake_btn) {
     esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
 
@@ -45,6 +65,30 @@ public:
   // Read state of charge percentage from BQ27220
   uint8_t getBatteryPercent();
 
+  // Read average current in mA (negative = discharging, positive = charging)
+  int16_t getAvgCurrent();
+
+  // Read average power in mW (negative = discharging, positive = charging)
+  int16_t getAvgPower();
+
+  // Read time-to-empty in minutes (0xFFFF if charging/unavailable)
+  uint16_t getTimeToEmpty();
+
+  // Read remaining capacity in mAh
+  uint16_t getRemainingCapacity();
+
+  // Read full charge capacity in mAh (learned value, may need cycling to update)
+  uint16_t getFullChargeCapacity();
+
+  // Read design capacity in mAh (the configured battery size)
+  uint16_t getDesignCapacity();
+
+  // Read battery temperature in 0.1°C units (e.g., 256 = 25.6°C)
+  int16_t getBattTemperature();
+
+  // Configure BQ27220 design capacity (checks on boot, writes only if wrong)
+  bool configureFuelGauge(uint16_t designCapacity_mAh = BQ27220_DESIGN_CAPACITY_MAH);
+
   const char* getManufacturerName() const {
     return "LilyGo T-Deck Pro";
   }

variants/lilygo_tdeck_pro/Tca8418keyboard.h

@@ -0,0 +1,329 @@
+#pragma once
+
+#include <Arduino.h>
+#include <Wire.h>
+
+// TCA8418 Register addresses
+#define TCA8418_REG_CFG         0x01
+#define TCA8418_REG_INT_STAT    0x02
+#define TCA8418_REG_KEY_LCK_EC  0x03
+#define TCA8418_REG_KEY_EVENT_A 0x04
+#define TCA8418_REG_KP_GPIO1    0x1D
+#define TCA8418_REG_KP_GPIO2    0x1E
+#define TCA8418_REG_KP_GPIO3    0x1F
+#define TCA8418_REG_DEBOUNCE    0x29
+#define TCA8418_REG_GPI_EM1     0x20
+#define TCA8418_REG_GPI_EM2     0x21
+#define TCA8418_REG_GPI_EM3     0x22
+
+// Key codes for special keys
+#define KB_KEY_NONE      0
+#define KB_KEY_BACKSPACE '\b'
+#define KB_KEY_ENTER     '\r'
+#define KB_KEY_SPACE     ' '
+#define KB_KEY_EMOJI     0x01   // Non-printable code for $ key (emoji picker)
+
+class TCA8418Keyboard {
+private:
+  uint8_t _addr;
+  TwoWire* _wire;
+  bool _initialized;
+  bool _shiftActive;   // Sticky shift (one-shot or held)
+  bool _shiftConsumed; // Was shift active for the last returned key
+  bool _shiftHeld;     // Shift key physically held down
+  bool _shiftUsedWhileHeld; // Was shift consumed by any key while held
+  bool _altActive;     // Sticky alt (one-shot)
+  bool _symActive;     // Sticky sym (one-shot)
+  unsigned long _lastShiftTime;  // For Shift+key combos
+
+  uint8_t readReg(uint8_t reg) {
+    _wire->beginTransmission(_addr);
+    _wire->write(reg);
+    _wire->endTransmission();
+    _wire->requestFrom(_addr, (uint8_t)1);
+    return _wire->available() ? _wire->read() : 0;
+  }
+
+  void writeReg(uint8_t reg, uint8_t val) {
+    _wire->beginTransmission(_addr);
+    _wire->write(reg);
+    _wire->write(val);
+    _wire->endTransmission();
+  }
+
+  // Map raw key codes to characters (from working reader firmware)
+  char getKeyChar(uint8_t keyCode) {
+    switch (keyCode) {
+      // Row 1 - QWERTYUIOP
+      case 10: return 'q';   // Q (was 97 on different hardware)
+      case 9:  return 'w';
+      case 8:  return 'e';
+      case 7:  return 'r';
+      case 6:  return 't';
+      case 5:  return 'y';
+      case 4:  return 'u';
+      case 3:  return 'i';
+      case 2:  return 'o';
+      case 1:  return 'p';
+      
+      // Row 2 - ASDFGHJKL + Backspace
+      case 20: return 'a';   // A (was 98 on different hardware)
+      case 19: return 's';
+      case 18: return 'd';
+      case 17: return 'f';
+      case 16: return 'g';
+      case 15: return 'h';
+      case 14: return 'j';
+      case 13: return 'k';
+      case 12: return 'l';
+      case 11: return '\b'; // Backspace
+      
+      // Row 3 - Alt ZXCVBNM Sym Enter
+      case 30: return 0;    // Alt - handled separately
+      case 29: return 'z';
+      case 28: return 'x';
+      case 27: return 'c';
+      case 26: return 'v';
+      case 25: return 'b';
+      case 24: return 'n';
+      case 23: return 'm';
+      case 22: return 0;    // Symbol key - handled separately
+      case 21: return '\r'; // Enter
+      
+      // Row 4 - Shift Mic Space Sym Shift
+      case 35: return 0;    // Left shift - handled separately
+      case 34: return 0;    // Mic
+      case 33: return ' ';  // Space
+      case 32: return 0;    // Sym - handled separately
+      case 31: return 0;    // Right shift - handled separately
+      
+      default: return 0;
+    }
+  }
+
+  // Map key with Alt modifier - same as Sym for this keyboard
+  char getAltChar(uint8_t keyCode) {
+    return getSymChar(keyCode);  // Alt does same as Sym
+  }
+
+  // Map key with Sym modifier - based on actual T-Deck Pro keyboard silk-screen
+  char getSymChar(uint8_t keyCode) {
+    switch (keyCode) {
+      // Row 1: Q W E R T Y U I O P
+      case 10: return '#';  // Q -> #
+      case 9:  return '1';  // W -> 1
+      case 8:  return '2';  // E -> 2
+      case 7:  return '3';  // R -> 3
+      case 6:  return '(';  // T -> (
+      case 5:  return ')';  // Y -> )
+      case 4:  return '_';  // U -> _
+      case 3:  return '-';  // I -> -
+      case 2:  return '+';  // O -> +
+      case 1:  return '@';  // P -> @
+      
+      // Row 2: A S D F G H J K L
+      case 20: return '*';  // A -> *
+      case 19: return '4';  // S -> 4
+      case 18: return '5';  // D -> 5
+      case 17: return '6';  // F -> 6
+      case 16: return '/';  // G -> /
+      case 15: return ':';  // H -> :
+      case 14: return ';';  // J -> ;
+      case 13: return '\''; // K -> '
+      case 12: return '"';  // L -> "
+      
+      // Row 3: Z X C V B N M
+      case 29: return '7';  // Z -> 7
+      case 28: return '8';  // X -> 8
+      case 27: return '9';  // C -> 9
+      case 26: return '?';  // V -> ?
+      case 25: return '!';  // B -> !
+      case 24: return ',';  // N -> ,
+      case 23: return '.';  // M -> .
+      
+      // Row 4: Mic key -> 0
+      case 34: return '0';  // Mic -> 0
+      
+      default: return 0;
+    }
+  }
+
+public:
+  TCA8418Keyboard(uint8_t addr = 0x34, TwoWire* wire = &Wire) 
+    : _addr(addr), _wire(wire), _initialized(false), 
+      _shiftActive(false), _shiftConsumed(false), _shiftHeld(false), _shiftUsedWhileHeld(false), _altActive(false), _symActive(false), _lastShiftTime(0) {}
+
+  bool begin() {
+    // Check if device responds
+    _wire->beginTransmission(_addr);
+    if (_wire->endTransmission() != 0) {
+      Serial.println("TCA8418: Device not found");
+      return false;
+    }
+
+    // Configure keyboard matrix (8 rows x 10 cols)
+    writeReg(TCA8418_REG_KP_GPIO1, 0xFF);  // Rows 0-7 as keypad
+    writeReg(TCA8418_REG_KP_GPIO2, 0xFF);  // Cols 0-7 as keypad
+    writeReg(TCA8418_REG_KP_GPIO3, 0x03);  // Cols 8-9 as keypad
+
+    // Enable keypad with FIFO overflow detection
+    writeReg(TCA8418_REG_CFG, 0x11);  // KE_IEN + INT_CFG
+
+    // Set debounce
+    writeReg(TCA8418_REG_DEBOUNCE, 0x03);
+
+    // Clear any pending interrupts
+    writeReg(TCA8418_REG_INT_STAT, 0x1F);
+
+    // Flush the FIFO
+    while (readReg(TCA8418_REG_KEY_LCK_EC) & 0x0F) {
+      readReg(TCA8418_REG_KEY_EVENT_A);
+    }
+
+    _initialized = true;
+    Serial.println("TCA8418: Keyboard initialized OK");
+    return true;
+  }
+
+  // Read a key press - returns character or 0 if no key
+  char readKey() {
+    if (!_initialized) return 0;
+
+    // Check for key events in FIFO
+    uint8_t keyCount = readReg(TCA8418_REG_KEY_LCK_EC) & 0x0F;
+    if (keyCount == 0) return 0;
+
+    // Read key event from FIFO
+    uint8_t keyEvent = readReg(TCA8418_REG_KEY_EVENT_A);
+
+    // Bit 7: 1 = press, 0 = release
+    bool pressed = (keyEvent & 0x80) != 0;
+    uint8_t keyCode = keyEvent & 0x7F;
+
+    // Clear interrupt
+    writeReg(TCA8418_REG_INT_STAT, 0x1F);
+
+    Serial.printf("KB raw: event=0x%02X code=%d pressed=%d count=%d\n", 
+                  keyEvent, keyCode, pressed, keyCount);
+
+    // Track shift release (before the general release-ignore)
+    if (!pressed && (keyCode == 35 || keyCode == 31)) {
+      _shiftHeld = false;
+      // If shift was used while held (e.g. cursor nav), clear it completely
+      // so the next bare keypress isn't treated as shifted.
+      // If shift was NOT used (tap-then-release), keep _shiftActive for one-shot.
+      if (_shiftUsedWhileHeld) {
+        _shiftActive = false;
+      }
+      _shiftUsedWhileHeld = false;
+      return 0;
+    }
+
+    // Only act on key press, not release
+    if (!pressed || keyCode == 0) {
+      return 0;
+    }
+
+    // Handle modifier keys - set sticky state and return 0
+    if (keyCode == 35 || keyCode == 31) {  // Shift keys
+      _shiftActive = true;
+      _shiftHeld = true;
+      _shiftUsedWhileHeld = false;
+      _lastShiftTime = millis();
+      Serial.println("KB: Shift activated");
+      return 0;
+    }
+    if (keyCode == 30) {  // Alt key
+      _altActive = true;
+      Serial.println("KB: Alt activated");
+      return 0;
+    }
+    if (keyCode == 32) {  // Sym key (bottom row)
+      _symActive = true;
+      Serial.println("KB: Sym activated");
+      return 0;
+    }
+    
+    // Handle dedicated $ key (key code 22, next to M)
+    // Bare press = emoji picker, Sym+$ = literal '$'
+    if (keyCode == 22) {
+      if (_symActive) {
+        _symActive = false;
+        Serial.println("KB: Sym+$ -> '$'");
+        return '$';
+      }
+      Serial.println("KB: $ key -> emoji");
+      return KB_KEY_EMOJI;
+    }
+    
+    // Handle Mic key - always produces '0' (silk-screened on key)
+    // Sym+Mic also produces '0' (consumes sym so it doesn't leak)
+    if (keyCode == 34) {
+      _symActive = false;
+      Serial.println("KB: Mic -> '0'");
+      return '0';
+    }
+
+    // Get the character
+    char c = 0;
+    
+    if (_altActive) {
+      c = getAltChar(keyCode);
+      _altActive = false;  // Reset sticky alt
+      if (c != 0) {
+        Serial.printf("KB: Alt+key -> '%c'\n", c);
+        return c;
+      }
+    }
+    
+    if (_symActive) {
+      c = getSymChar(keyCode);
+      _symActive = false;  // Reset sticky sym
+      if (c != 0) {
+        Serial.printf("KB: Sym+key -> '%c'\n", c);
+        return c;
+      }
+    }
+    
+    c = getKeyChar(keyCode);
+    
+    if (c != 0 && _shiftActive) {
+      // Apply shift - uppercase letters
+      if (c >= 'a' && c <= 'z') {
+        c = c - 'a' + 'A';
+      }
+      // Track that shift was used while physically held
+      if (_shiftHeld) {
+        _shiftUsedWhileHeld = true;
+      }
+      // Only clear shift if it's one-shot (tap), not held down
+      if (!_shiftHeld) {
+        _shiftActive = false;
+      }
+      _shiftConsumed = true; // Record that shift was active for this key
+    } else {
+      _shiftConsumed = false;
+    }
+    
+    if (c != 0) {
+      Serial.printf("KB: code %d -> '%c' (0x%02X)\n", keyCode, c >= 32 ? c : '?', c);
+    } else {
+      Serial.printf("KB: code %d -> UNMAPPED\n", keyCode);
+    }
+    
+    return c;
+  }
+
+  bool isReady() const { return _initialized; }
+  
+  // Check if shift was pressed within the last N milliseconds
+  bool wasShiftRecentlyPressed(unsigned long withinMs = 500) const {
+    return (millis() - _lastShiftTime) < withinMs;
+  }
+  
+  // Check if shift was active when the most recent key was produced
+  // (immune to e-ink refresh timing unlike wasShiftRecentlyPressed)
+  bool wasShiftConsumed() const {
+    return _shiftConsumed;
+  }
+};

variants/lilygo_tdeck_pro/platformio.ini

@@ -80,6 +80,7 @@ build_flags =
   -D PIN_DISPLAY_BL=45
   -D PIN_USER_BTN=0
   -D CST328_PIN_RST=38
+  -D ARDUINO_LOOP_STACK_SIZE=32768
 build_src_filter = ${esp32_base.build_src_filter}
   +<../variants/LilyGo_TDeck_Pro>
   +<helpers/sensors/*.cpp>
@@ -90,14 +91,73 @@ lib_deps =
   adafruit/Adafruit GFX Library@^1.11.0
   bakercp/CRC32@^2.0.0
 
-[env:LilyGo_TDeck_Pro_companion_radio_usb]
+; ---------------------------------------------------------------------------
+; Meck unified builds — one codebase, three variants via build flags
+; ---------------------------------------------------------------------------
+
+; Audio + BLE companion (audio-player hardware with BLE phone bridging)
+; MAX_CONTACTS=500 is near BLE protocol ceiling (MAX_CONTACTS/2 sent as uint8_t, max 510)
+[env:meck_audio_ble]
 extends = LilyGo_TDeck_Pro
 build_flags =
   ${LilyGo_TDeck_Pro.build_flags}
   -I examples/companion_radio/ui-new
-  -D MAX_CONTACTS=350
-  -D MAX_GROUP_CHANNELS=40
+  -D MAX_CONTACTS=500
+  -D MAX_GROUP_CHANNELS=20
+  -D BLE_PIN_CODE=123456
   -D OFFLINE_QUEUE_SIZE=256
+  -D MECK_AUDIO_VARIANT
+  -D MECK_WEB_READER=1
+build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
+  +<helpers/esp32/*.cpp>
+  +<helpers/ui/MomentaryButton.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-new/*.cpp>
+  +<helpers/ui/GxEPDDisplay.cpp>
+lib_deps =
+  ${LilyGo_TDeck_Pro.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+  https://github.com/schreibfaul1/ESP32-audioI2S.git#2.0.6
+  bitbank2/JPEGDEC
+
+; Audio standalone (audio-player hardware, no BLE/WiFi — maximum battery life)
+; No MECK_WEB_READER: WiFi power draw conflicts with zero-radio-power design.
+; Contacts and sort arrays allocated in PSRAM — 1500 contacts uses ~290KB of 8MB.
+[env:meck_audio_standalone]
+extends = LilyGo_TDeck_Pro
+build_flags =
+  ${LilyGo_TDeck_Pro.build_flags}
+  -I examples/companion_radio/ui-new
+  -D MAX_CONTACTS=1500
+  -D MAX_GROUP_CHANNELS=20
+  -D OFFLINE_QUEUE_SIZE=256
+  -D MECK_AUDIO_VARIANT
+build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
+  +<helpers/esp32/*.cpp>
+  +<helpers/ui/MomentaryButton.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-new/*.cpp>
+  +<helpers/ui/GxEPDDisplay.cpp>
+lib_deps =
+  ${LilyGo_TDeck_Pro.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+  https://github.com/schreibfaul1/ESP32-audioI2S.git#2.0.6
+  bitbank2/JPEGDEC
+
+; 4G + BLE companion (4G modem hardware, no audio — GPIO conflict with PCM5102A)
+; MAX_CONTACTS=500 is near BLE protocol ceiling (MAX_CONTACTS/2 sent as uint8_t, max 510)
+[env:meck_4g_ble]
+extends = LilyGo_TDeck_Pro
+build_flags =
+  ${LilyGo_TDeck_Pro.build_flags}
+  -I examples/companion_radio/ui-new
+  -D MAX_CONTACTS=500
+  -D MAX_GROUP_CHANNELS=20
+  -D BLE_PIN_CODE=123456
+  -D OFFLINE_QUEUE_SIZE=256
+  -D HAS_4G_MODEM=1
+  -D MECK_WEB_READER=1
+  -D FIRMWARE_VERSION='"Meck v0.9.5.4G"'
 build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
@@ -108,15 +168,22 @@ lib_deps =
   ${LilyGo_TDeck_Pro.lib_deps}
   densaugeo/base64 @ ~1.4.0
 
-[env:LilyGo_TDeck_Pro_companion_radio_ble]
+; 4G standalone (4G modem hardware, no BLE — maximum battery + cellular features)
+; No BLE_PIN_CODE: BLE never initializes, saving ~30KB heap + radio power.
+; MECK_WEB_READER enabled: works better without BLE (no teardown dance needed,
+; more free heap from boot). WiFi-first with cellular PPP fallback (future).
+; Contacts and sort arrays allocated in PSRAM — 1500 contacts uses ~290KB of 8MB.
+[env:meck_4g_standalone]
 extends = LilyGo_TDeck_Pro
 build_flags =
   ${LilyGo_TDeck_Pro.build_flags}
   -I examples/companion_radio/ui-new
-  -D MAX_CONTACTS=350
-  -D MAX_GROUP_CHANNELS=40
-  -D BLE_PIN_CODE=234567
+  -D MAX_CONTACTS=1500
+  -D MAX_GROUP_CHANNELS=20
   -D OFFLINE_QUEUE_SIZE=256
+  -D HAS_4G_MODEM=1
+  -D MECK_WEB_READER=1
+  -D FIRMWARE_VERSION='"Meck v0.9.5.4G.SA"'
 build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
@@ -125,22 +192,4 @@ build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
   +<helpers/ui/GxEPDDisplay.cpp>
 lib_deps =
   ${LilyGo_TDeck_Pro.lib_deps}
-  densaugeo/base64 @ ~1.4.0
-
-[env:LilyGo_TDeck_Pro_repeater]
-extends = LilyGo_TDeck_Pro
-build_flags =
-  ${LilyGo_TDeck_Pro.build_flags}
-  -D ADVERT_NAME='"TDeck Pro Repeater"'
-  -D ADVERT_LAT=0.0
-  -D ADVERT_LON=0.0
-  -D ADMIN_PASSWORD='"password"'
-  -D MAX_NEIGHBOURS=50
-  -D NO_OTA=1
-build_src_filter = ${LilyGo_TDeck_Pro.build_src_filter}
-  +<../examples/simple_repeater>
-  +<helpers/ui/GxEPDDisplay.cpp>
-lib_deps =
-  ${LilyGo_TDeck_Pro.lib_deps}
-  me-no-dev/AsyncTCP @ ^1.1.1
-  me-no-dev/ESPAsyncWebServer @ ^1.2.3
+  densaugeo/base64 @ ~1.4.0

variants/lilygo_tdeck_pro/target.cpp

@@ -17,12 +17,13 @@ ESP32RTCClock fallback_clock;
 AutoDiscoverRTCClock rtc_clock(fallback_clock);
 
 #if HAS_GPS
-  MicroNMEALocationProvider gps(Serial2, &rtc_clock);
+  // Wrap Serial2 with a sentence counter so the UI can show NMEA throughput.
+  // MicroNMEALocationProvider reads through this wrapper transparently.
+  GPSStreamCounter gpsStream(Serial2);
+  MicroNMEALocationProvider gps(gpsStream, &rtc_clock);
   EnvironmentSensorManager sensors(gps);
-  #pragma message "GPS enabled - using EnvironmentSensorManager with MicroNMEALocationProvider"
 #else
   SensorManager sensors;
-  #pragma message "GPS disabled - using basic SensorManager"
 #endif
 
 #ifdef DISPLAY_CLASS
@@ -31,38 +32,37 @@ AutoDiscoverRTCClock rtc_clock(fallback_clock);
 #endif
 
 bool radio_init() {
-  Serial.println("radio_init() - starting");
+  MESH_DEBUG_PRINTLN("radio_init() - starting");
   
   // NOTE: board.begin() is called by main.cpp setup() before radio_init()
   // I2C is already initialized there with correct pins
   
   fallback_clock.begin();
-  Serial.println("radio_init() - fallback_clock started");
+  MESH_DEBUG_PRINTLN("radio_init() - fallback_clock started");
   
   // Wire already initialized in board.begin() - just use it for RTC
   rtc_clock.begin(Wire);
-  Serial.println("radio_init() - rtc_clock started");
-
-  // Debug GPS status
-  #if HAS_GPS
-    Serial.println("radio_init() - HAS_GPS is defined");
-    Serial.print("radio_init() - gps object address: ");
-    Serial.println((uint32_t)&gps, HEX);
-  #else
-    Serial.println("radio_init() - HAS_GPS is NOT defined");
-  #endif
+  MESH_DEBUG_PRINTLN("radio_init() - rtc_clock started");
 
 #if defined(P_LORA_SCLK)
-  Serial.println("radio_init() - initializing LoRa SPI...");
+  MESH_DEBUG_PRINTLN("radio_init() - initializing LoRa SPI...");
   loraSpi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI, P_LORA_NSS);
-  Serial.println("radio_init() - SPI initialized, calling radio.std_init()...");
+  MESH_DEBUG_PRINTLN("radio_init() - SPI initialized, calling radio.std_init()...");
   bool result = radio.std_init(&loraSpi);
-  Serial.print("radio_init() - radio.std_init() returned: ");
-  Serial.println(result ? "SUCCESS" : "FAILED");
+  if (result) {
+    radio.setPreambleLength(32);
+    MESH_DEBUG_PRINTLN("radio_init() - preamble set to 32 symbols");
+  }
+  MESH_DEBUG_PRINTLN("radio_init() - radio.std_init() returned: %s", result ? "SUCCESS" : "FAILED");
   return result;
 #else
-  Serial.println("radio_init() - calling radio.std_init() without custom SPI...");
-  return radio.std_init();
+  MESH_DEBUG_PRINTLN("radio_init() - calling radio.std_init() without custom SPI...");
+  bool result = radio.std_init();
+  if (result) {
+    radio.setPreambleLength(32);
+    MESH_DEBUG_PRINTLN("radio_init() - preamble set to 32 symbols");
+  }
+  return result;
 #endif
 }
 
@@ -84,4 +84,8 @@ void radio_set_tx_power(uint8_t dbm) {
 mesh::LocalIdentity radio_new_identity() {
   RadioNoiseListener rng(radio);
   return mesh::LocalIdentity(&rng);
+}
+
+void radio_reset_agc() {
+  radio.setRxBoostedGainMode(true);
 }

variants/lilygo_tdeck_pro/target.h

@@ -18,6 +18,7 @@
 #if HAS_GPS
   #include "helpers/sensors/EnvironmentSensorManager.h"
   #include "helpers/sensors/MicroNMEALocationProvider.h"
+  #include "GPSStreamCounter.h"
 #else
   #include <helpers/SensorManager.h>
 #endif
@@ -27,6 +28,7 @@ extern WRAPPER_CLASS radio_driver;
 extern AutoDiscoverRTCClock rtc_clock;
 
 #if HAS_GPS
+  extern GPSStreamCounter gpsStream;
   extern EnvironmentSensorManager sensors;
 #else
   extern SensorManager sensors;
@@ -41,4 +43,5 @@ bool radio_init();
 uint32_t radio_get_rng_seed();
 void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
 void radio_set_tx_power(uint8_t dbm);
-mesh::LocalIdentity radio_new_identity();
+mesh::LocalIdentity radio_new_identity();
+void radio_reset_agc();

variants/lilygo_techo_lite/TechoBoard.cpp

@@ -1,31 +0,0 @@
-#include <Arduino.h>
-#include <Wire.h>
-
-#include "TechoBoard.h"
-
-#ifdef LILYGO_TECHO
-
-void TechoBoard::begin() {
-  NRF52Board::begin();
-
-  Wire.begin();
-
-  pinMode(SX126X_POWER_EN, OUTPUT);
-  digitalWrite(SX126X_POWER_EN, HIGH);
-  delay(10);   // give sx1262 some time to power up
-}
-
-uint16_t TechoBoard::getBattMilliVolts() {
-  int adcvalue = 0;
-
-  analogReference(AR_INTERNAL_3_0);
-  analogReadResolution(12);
-  delay(10);
-
-  // ADC range is 0..3000mV and resolution is 12-bit (0..4095)
-  adcvalue = analogRead(PIN_VBAT_READ);
-  // Convert the raw value to compensated mv, taking the resistor-
-  // divider into account (providing the actual LIPO voltage)
-  return (uint16_t)((float)adcvalue * REAL_VBAT_MV_PER_LSB);
-}
-#endif

variants/lilygo_techo_lite/TechoBoard.h

@@ -1,44 +0,0 @@
-#pragma once
-
-#include <MeshCore.h>
-#include <Arduino.h>
-#include <helpers/NRF52Board.h>
-
-// built-ins
-#define VBAT_MV_PER_LSB   (0.73242188F)   // 3.0V ADC range and 12-bit ADC resolution = 3000mV/4096
-
-#define VBAT_DIVIDER      (0.5F)          // 150K + 150K voltage divider on VBAT
-#define VBAT_DIVIDER_COMP (2.0F)          // Compensation factor for the VBAT divider
-
-#define PIN_VBAT_READ     (4)
-#define REAL_VBAT_MV_PER_LSB (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
-
-class TechoBoard : public NRF52BoardOTA {
-public:
-  TechoBoard() : NRF52BoardOTA("TECHO_OTA") {}
-  void begin();
-  uint16_t getBattMilliVolts() override;
-
-  const char* getManufacturerName() const override {
-    return "LilyGo T-Echo";
-  }
-
-  void powerOff() override {
-    #ifdef LED_RED
-    digitalWrite(LED_RED, LOW);
-    #endif
-    #ifdef LED_GREEN
-    digitalWrite(LED_GREEN, LOW);
-    #endif
-    #ifdef LED_BLUE
-    digitalWrite(LED_BLUE, LOW);
-    #endif
-    #ifdef DISP_BACKLIGHT
-    digitalWrite(DISP_BACKLIGHT, LOW);
-    #endif
-    #ifdef PIN_PWR_EN
-    digitalWrite(PIN_PWR_EN, LOW);
-    #endif
-    sd_power_system_off();
-  }
-};

variants/lilygo_techo_lite/platformio.ini

@@ -1,98 +0,0 @@
-[LilyGo_T-Echo-Lite]
-extends = nrf52_base
-board = t-echo
-board_build.ldscript = boards/nrf52840_s140_v6.ld
-build_flags = ${nrf52_base.build_flags}
-  -I variants/lilygo_techo_lite
-  -I src/helpers/nrf52
-  -I lib/nrf52/s140_nrf52_6.1.1_API/include
-  -I lib/nrf52/s140_nrf52_6.1.1_API/include/nrf52
-  -D LILYGO_TECHO
-  -D RADIO_CLASS=CustomSX1262
-  -D WRAPPER_CLASS=CustomSX1262Wrapper
-  -D LORA_TX_POWER=22
-  -D SX126X_POWER_EN=30
-  -D SX126X_CURRENT_LIMIT=140
-  -D SX126X_RX_BOOSTED_GAIN=1
-  -D P_LORA_TX_LED=LED_GREEN
-  -D DISABLE_DIAGNOSTIC_OUTPUT
-  -D ENV_INCLUDE_GPS=1
-  -D GPS_BAUD_RATE=9600
-  -D PIN_GPS_EN=GPS_EN
-  -D DISPLAY_CLASS=GxEPDDisplay
-  -D EINK_DISPLAY_MODEL=GxEPD2_122_T61
-  -D EINK_SCALE_X=1.5f
-  -D EINK_SCALE_Y=2.0f
-  -D EINK_X_OFFSET=0
-  -D EINK_Y_OFFSET=10
-  -D DISPLAY_ROTATION=4
-  -D AUTO_OFF_MILLIS=0
-build_src_filter = ${nrf52_base.build_src_filter}
-  +<helpers/*.cpp>
-  +<TechoBoard.cpp>
-  +<helpers/sensors/EnvironmentSensorManager.cpp>
-  +<helpers/ui/GxEPDDisplay.cpp>
-  +<helpers/ui/MomentaryButton.cpp>
-  +<../variants/lilygo_techo_lite>
-lib_deps =
-  ${nrf52_base.lib_deps}
-  stevemarple/MicroNMEA @ ^2.0.6
-  adafruit/Adafruit BME280 Library @ ^2.3.0
-  https://github.com/SoulOfNoob/GxEPD2.git
-  bakercp/CRC32 @ ^2.0.0
-debug_tool = jlink
-upload_protocol = nrfutil
-
-[env:LilyGo_T-Echo-Lite_repeater]
-extends = LilyGo_T-Echo-Lite
-build_src_filter = ${LilyGo_T-Echo-Lite.build_src_filter}
-  +<../examples/simple_repeater>
-build_flags =
-  ${LilyGo_T-Echo-Lite.build_flags}
-  -D ADVERT_NAME='"T-Echo-Lite Repeater"'
-  -D ADVERT_LAT=0.0
-  -D ADVERT_LON=0.0
-  -D ADMIN_PASSWORD='"password"'
-  -D MAX_NEIGHBOURS=50
-;  -D MESH_PACKET_LOGGING=1
-;  -D MESH_DEBUG=1
-
-[env:LilyGo_T-Echo-Lite_room_server]
-extends = LilyGo_T-Echo-Lite
-build_src_filter = ${LilyGo_T-Echo-Lite.build_src_filter}
-  +<../examples/simple_room_server>
-build_flags =
-  ${LilyGo_T-Echo-Lite.build_flags}
-  -D ADVERT_NAME='"T-Echo-Lite Room"'
-  -D ADVERT_LAT=0.0
-  -D ADVERT_LON=0.0
-  -D ADMIN_PASSWORD='"password"'
-;  -D MESH_PACKET_LOGGING=1
-;  -D MESH_DEBUG=1
-
-[env:LilyGo_T-Echo-Lite_companion_radio_ble]
-extends = LilyGo_T-Echo-Lite
-board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
-board_upload.maximum_size = 712704
-build_flags =
-  ${LilyGo_T-Echo-Lite.build_flags}
-  -I src/helpers/ui
-  -I examples/companion_radio/ui-new
-  -D MAX_CONTACTS=350
-  -D MAX_GROUP_CHANNELS=40
-  ; -D QSPIFLASH=1
-  -D BLE_PIN_CODE=123456
-  ; -D BLE_DEBUG_LOGGING=1
-  -D OFFLINE_QUEUE_SIZE=256
-  -D UI_RECENT_LIST_SIZE=9
-  -D UI_SENSORS_PAGE=1
-  ; -D MESH_PACKET_LOGGING=1
-  ; -D MESH_DEBUG=1
-  -D AUTO_SHUTDOWN_MILLIVOLTS=3300
-build_src_filter = ${LilyGo_T-Echo-Lite.build_src_filter}
-  +<helpers/nrf52/SerialBLEInterface.cpp>
-  +<../examples/companion_radio/*.cpp>
-  +<../examples/companion_radio/ui-new/*.cpp>
-lib_deps =
-  ${LilyGo_T-Echo-Lite.lib_deps}
-  densaugeo/base64 @ ~1.4.0

variants/lilygo_techo_lite/target.cpp

@@ -1,52 +0,0 @@
-#include <Arduino.h>
-#include "target.h"
-#include <helpers/ArduinoHelpers.h>
-#include <helpers/sensors/MicroNMEALocationProvider.h>
-
-TechoBoard board;
-
-RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
-
-WRAPPER_CLASS radio_driver(radio, board);
-
-VolatileRTCClock fallback_clock;
-AutoDiscoverRTCClock rtc_clock(fallback_clock);
-
-#ifdef ENV_INCLUDE_GPS
-MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock);
-EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea);
-#else
-EnvironmentSensorManager sensors = EnvironmentSensorManager();
-#endif
-
-#ifdef DISPLAY_CLASS
-  DISPLAY_CLASS display;
-  MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
-#endif
-
-bool radio_init() {
-  rtc_clock.begin(Wire);
-
-  return radio.std_init(&SPI);
-}
-
-uint32_t radio_get_rng_seed() {
-  return radio.random(0x7FFFFFFF);
-}
-
-void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
-  radio.setFrequency(freq);
-  radio.setSpreadingFactor(sf);
-  radio.setBandwidth(bw);
-  radio.setCodingRate(cr);
-}
-
-void radio_set_tx_power(uint8_t dbm) {
-  radio.setOutputPower(dbm);
-}
-
-mesh::LocalIdentity radio_new_identity() {
-  RadioNoiseListener rng(radio);
-  return mesh::LocalIdentity(&rng);  // create new random identity
-}
-

variants/lilygo_techo_lite/target.h

@@ -1,31 +0,0 @@
-#pragma once
-
-#define RADIOLIB_STATIC_ONLY 1
-#include <RadioLib.h>
-#include <helpers/radiolib/RadioLibWrappers.h>
-#include <TechoBoard.h>
-#include <helpers/radiolib/CustomSX1262Wrapper.h>
-#include <helpers/AutoDiscoverRTCClock.h>
-#include <helpers/SensorManager.h>
-#include <helpers/sensors/EnvironmentSensorManager.h>
-#include <helpers/sensors/LocationProvider.h>
-#ifdef DISPLAY_CLASS
-  #include <helpers/ui/GxEPDDisplay.h>
-  #include <helpers/ui/MomentaryButton.h>
-#endif
-
-extern TechoBoard board;
-extern WRAPPER_CLASS radio_driver;
-extern AutoDiscoverRTCClock rtc_clock;
-extern EnvironmentSensorManager sensors;
-
-#ifdef DISPLAY_CLASS
-  extern DISPLAY_CLASS display;
-  extern MomentaryButton user_btn;
-#endif
-
-bool radio_init();
-uint32_t radio_get_rng_seed();
-void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
-void radio_set_tx_power(uint8_t dbm);
-mesh::LocalIdentity radio_new_identity();

variants/lilygo_techo_lite/variant.cpp

@@ -1,39 +0,0 @@
-#include "variant.h"
-#include "wiring_constants.h"
-#include "wiring_digital.h"
-
-const int MISO = PIN_SPI1_MISO;
-const int MOSI = PIN_SPI1_MOSI;
-const int SCK = PIN_SPI1_SCK;
-
-const uint32_t g_ADigitalPinMap[] = {
-  0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
-  14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
-  27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
-  40, 41, 42, 43, 44, 45, 46, 47
-};
-
-void initVariant() {
-  pinMode(PIN_PWR_EN, OUTPUT);
-  digitalWrite(PIN_PWR_EN, HIGH);
-
-  pinMode(PIN_BUTTON1, INPUT_PULLUP);
-  pinMode(PIN_BUTTON2, INPUT_PULLUP);
-
-  pinMode(LED_RED, OUTPUT);
-  pinMode(LED_GREEN, OUTPUT);
-  pinMode(LED_BLUE, OUTPUT);
-  digitalWrite(LED_BLUE, HIGH);
-  digitalWrite(LED_GREEN, HIGH);
-  digitalWrite(LED_RED, HIGH);
-
-  // pinMode(PIN_TXCO, OUTPUT);
-  // digitalWrite(PIN_TXCO, HIGH);
-
-  pinMode(DISP_POWER, OUTPUT);
-  digitalWrite(DISP_POWER, LOW);
-
-  // shutdown gps
-  pinMode(GPS_EN, OUTPUT);
-  digitalWrite(GPS_EN, LOW);
-}

variants/lilygo_techo_lite/variant.h

@@ -1,158 +0,0 @@
-/*
- * variant.h
- * Copyright (C) 2023 Seeed K.K.
- * MIT License
- */
-
-#pragma once
-
-#define _PINNUM(port, pin) ((port) * 32 + (pin))
-
-#include "WVariant.h"
-
-////////////////////////////////////////////////////////////////////////////////
-// Low frequency clock source
-
-#define USE_LFXO    // 32.768 kHz crystal oscillator
-#define VARIANT_MCK (64000000ul)
-
-#define WIRE_INTERFACES_COUNT   (1)
-
-////////////////////////////////////////////////////////////////////////////////
-// Power
-
-#define PIN_PWR_EN              _PINNUM(0, 30) // RT9080_EN
-
-#define BATTERY_PIN             _PINNUM(0, 2)
-#define ADC_MULTIPLIER          (4.90F)
-
-#define ADC_RESOLUTION          (14)
-#define BATTERY_SENSE_RES       (12)
-
-#define AREF_VOLTAGE            (3.0)
-
-////////////////////////////////////////////////////////////////////////////////
-// Number of pins
-
-#define PINS_COUNT              (48)
-#define NUM_DIGITAL_PINS        (48)
-#define NUM_ANALOG_INPUTS       (1)
-#define NUM_ANALOG_OUTPUTS      (0)
-
-////////////////////////////////////////////////////////////////////////////////
-// UART pin definition
-
-#define PIN_SERIAL1_RX          PIN_GPS_TX
-#define PIN_SERIAL1_TX          PIN_GPS_RX
-////////////////////////////////////////////////////////////////////////////////
-// I2C pin definition
-
-#define PIN_WIRE_SDA            _PINNUM(0, 4) // (SDA)
-#define PIN_WIRE_SCL            _PINNUM(0, 2) // (SCL)
-
-////////////////////////////////////////////////////////////////////////////////
-// SPI pin definition
-
-#define SPI_INTERFACES_COUNT    _PINNUM(0, 2)
-
-#define PIN_SPI_MISO            _PINNUM(0, 17) // (MISO)
-#define PIN_SPI_MOSI            _PINNUM(0, 15) // (MOSI)
-#define PIN_SPI_SCK             _PINNUM(0, 13) // (SCK)
-#define PIN_SPI_NSS             (-1)
-
-////////////////////////////////////////////////////////////////////////////////
-// QSPI FLASH
-
-#define PIN_QSPI_SCK            _PINNUM(0, 4)
-#define PIN_QSPI_CS             _PINNUM(0, 12)
-#define PIN_QSPI_IO0            _PINNUM(0, 6)
-#define PIN_QSPI_IO1            _PINNUM(0, 8)
-#define PIN_QSPI_IO2            _PINNUM(1, 9)
-#define PIN_QSPI_IO3            _PINNUM(0, 26)
-
-#define EXTERNAL_FLASH_DEVICES ZD25WQ32CEIGR
-#define EXTERNAL_FLASH_USE_QSPI
-
-////////////////////////////////////////////////////////////////////////////////
-// Builtin LEDs
-
-#define LED_RED                 _PINNUM(1, 14) // LED_3
-#define LED_BLUE                _PINNUM(1, 5)  // LED_2
-#define LED_GREEN               _PINNUM(1, 7)  // LED_1
-
-//#define PIN_STATUS_LED          LED_BLUE
-#define LED_BUILTIN             (-1)
-#define LED_PIN                 LED_BUILTIN
-#define LED_STATE_ON            LOW
-
-////////////////////////////////////////////////////////////////////////////////
-// Builtin buttons
-
-#define PIN_BUTTON1             _PINNUM(0, 24) // BOOT
-#define BUTTON_PIN              PIN_BUTTON1
-#define PIN_USER_BTN            BUTTON_PIN
-
-#define PIN_BUTTON2             _PINNUM(0, 18)
-#define BUTTON_PIN2             PIN_BUTTON2
-
-#define EXTERNAL_FLASH_DEVICES MX25R1635F
-#define EXTERNAL_FLASH_USE_QSPI
-
-////////////////////////////////////////////////////////////////////////////////
-// Lora
-
-#define USE_SX1262
-#define LORA_CS                 _PINNUM(0, 11)
-#define SX126X_POWER_EN         _PINNUM(0, 30)
-#define SX126X_DIO1             _PINNUM(1, 8)
-#define SX126X_BUSY             _PINNUM(0, 14)
-#define SX126X_RESET            _PINNUM(0, 7)
-#define SX126X_RF_VC1           _PINNUM(0, 27)
-#define SX126X_RF_VC2           _PINNUM(0, 33)
-
-#define P_LORA_DIO_1            SX126X_DIO1
-#define P_LORA_NSS              LORA_CS
-#define P_LORA_RESET            SX126X_RESET
-#define P_LORA_BUSY             SX126X_BUSY
-#define P_LORA_SCLK             PIN_SPI_SCK
-#define P_LORA_MISO             PIN_SPI_MISO
-#define P_LORA_MOSI             PIN_SPI_MOSI
-
-////////////////////////////////////////////////////////////////////////////////
-// SPI1
-
-#define PIN_SPI1_MISO           (-1)            // Not used for Display
-#define PIN_SPI1_MOSI           _PINNUM(0, 20)
-#define PIN_SPI1_SCK            _PINNUM(0, 19)
-
-// GxEPD2 needs that for a panel that is not even used !
-extern const int MISO;
-extern const int MOSI;
-extern const int SCK;
-
-////////////////////////////////////////////////////////////////////////////////
-// Display
-
-// #define DISP_MISO               (-1)         // Not used for Display
-#define DISP_MOSI               _PINNUM(0, 20)
-#define DISP_SCLK               _PINNUM(0, 19)
-#define DISP_CS                 _PINNUM(0, 22)
-#define DISP_DC                 _PINNUM(0, 21)
-#define DISP_RST                _PINNUM(0, 28)
-#define DISP_BUSY               _PINNUM(0, 3)
-#define DISP_POWER              _PINNUM(1, 12)
-// #define DISP_BACKLIGHT          (-1)         // Display has no backlight
-
-#define PIN_DISPLAY_CS          DISP_CS
-#define PIN_DISPLAY_DC          DISP_DC
-#define PIN_DISPLAY_RST         DISP_RST
-#define PIN_DISPLAY_BUSY        DISP_BUSY
-
-////////////////////////////////////////////////////////////////////////////////
-// GPS
-
-#define PIN_GPS_RX              _PINNUM(1, 13) // RXD
-#define PIN_GPS_TX              _PINNUM(1, 15) // TXD
-#define GPS_EN                  _PINNUM(1, 11) // POWER_RT9080_EN
-#define PIN_GPS_STANDBY         _PINNUM(1, 10)
-#define PIN_GPS_PPS             _PINNUM(0, 29) // 1PPS