Files
Meck/variants/lilygo_t5s3_epaper_pro/variant.h

188 lines
7.3 KiB
C

#pragma once
// =============================================================================
// LilyGo T5 S3 E-Paper Pro V2 (H752-01/H752-B) - Pin Definitions for Meck
//
// 4.7" parallel e-ink (ED047TC1, 960x540, 16-grey) — NO SPI display
// GT911 capacitive touch (no physical keyboard)
// SX1262 LoRa, BQ27220+BQ25896 battery, PCF85063 RTC, PCA9535 IO expander
// =============================================================================
// Board identifier
#define LilyGo_T5S3_EPaper_Pro 1
#define T5_S3_EPAPER_PRO_V2 1
// -----------------------------------------------------------------------------
// I2C Bus — shared by GT911, PCF85063, PCA9535, BQ25896, BQ27220, TPS65185
// -----------------------------------------------------------------------------
#define I2C_SDA 39
#define I2C_SCL 40
// Aliases for ESP32Board base class compatibility
#define PIN_BOARD_SDA I2C_SDA
#define PIN_BOARD_SCL I2C_SCL
// I2C Device Addresses
#define I2C_ADDR_GT911 0x5D // Touch controller
#define I2C_ADDR_PCF85063 0x51 // RTC
#define I2C_ADDR_PCA9535 0x20 // IO expander (e-ink power control)
#define I2C_ADDR_BQ27220 0x55 // Fuel gauge
#define I2C_ADDR_BQ25896 0x6B // Battery charger
#define I2C_ADDR_TPS65185 0x68 // E-ink power driver
// -----------------------------------------------------------------------------
// SPI Bus — shared by LoRa and SD card
// Different from T-Deck Pro! (T-Deck: 33/47/36, T5S3: 13/21/14)
// -----------------------------------------------------------------------------
#define BOARD_SPI_SCLK 14
#define BOARD_SPI_MISO 21
#define BOARD_SPI_MOSI 13
// -----------------------------------------------------------------------------
// LoRa Radio (SX1262)
// SPI bus shared with SD card, different chip selects
// -----------------------------------------------------------------------------
#define P_LORA_NSS 46
#define P_LORA_DIO_1 10 // IRQ
#define P_LORA_RESET 1
#define P_LORA_BUSY 47
#define P_LORA_SCLK BOARD_SPI_SCLK
#define P_LORA_MISO BOARD_SPI_MISO
#define P_LORA_MOSI BOARD_SPI_MOSI
// Note: No P_LORA_EN on T5S3 — LoRa is always powered
// -----------------------------------------------------------------------------
// E-Ink Display (ED047TC1 — 8-bit parallel, NOT SPI)
// Driven by epdiy/FastEPD library via TPS65185 + PCA9535
// GxEPD2 is NOT used on this board.
// -----------------------------------------------------------------------------
// Parallel data bus (directly wired to ESP32-S3 GPIOs)
#define EP_D0 5
#define EP_D1 6
#define EP_D2 7
#define EP_D3 15
#define EP_D4 16
#define EP_D5 17
#define EP_D6 18
#define EP_D7 8
// Control signals
#define EP_CKV 48 // Clock vertical
#define EP_STH 41 // Start horizontal
#define EP_LEH 42 // Latch enable horizontal
#define EP_STV 45 // Start vertical
#define EP_CKH 4 // Clock horizontal (edge)
// E-ink power is managed by TPS65185 through PCA9535 IO expander:
// PCA9535 IO10 -> EP_OE (output enable, source driver)
// PCA9535 IO11 -> EP_MODE (output mode, gate driver)
// PCA9535 IO13 -> TPS_PWRUP
// PCA9535 IO14 -> VCOM_CTRL
// PCA9535 IO15 -> TPS_WAKEUP
// PCA9535 IO16 -> TPS_PWR_GOOD (input)
// PCA9535 IO17 -> TPS_INT (input)
// Display dimensions — native resolution of ED047TC1
#define EPD_WIDTH 960
#define EPD_HEIGHT 540
// Backlight (warm-tone front-light — functional on V2!)
#define BOARD_BL_EN 11
// We do NOT define DISPLAY_CLASS or EINK_DISPLAY_MODEL here.
// The parallel display uses FastEPD, not GxEPD2.
// DISPLAY_CLASS will be defined in platformio.ini as FastEPDDisplay
// for builds that include display support.
// -----------------------------------------------------------------------------
// Touch Controller (GT911)
// No physical keyboard on this board — touch-only input
// -----------------------------------------------------------------------------
#define HAS_TOUCHSCREEN 1
#define GT911_PIN_INT 3
#define GT911_PIN_RST 9
#define GT911_PIN_SDA I2C_SDA
#define GT911_PIN_SCL I2C_SCL
// No keyboard
// #define HAS_PHYSICAL_KEYBOARD 0
// Compatibility: main.cpp references CST328 touch (T-Deck Pro).
// Map to GT911 equivalents so shared code compiles.
// The actual touch init for T5S3 will use GT911 in Phase 2.
#define CST328_PIN_INT GT911_PIN_INT
#define CST328_PIN_RST GT911_PIN_RST
// -----------------------------------------------------------------------------
// SD Card — shares SPI bus with LoRa
// -----------------------------------------------------------------------------
#define HAS_SDCARD
#define SDCARD_USE_SPI1
#define SDCARD_CS 12
#define SPI_CS SDCARD_CS
// -----------------------------------------------------------------------------
// GPS — Not present on H752-B (non-GPS variant)
// If a GPS model is used (H752-01/H752-02), define HAS_GPS=1
// and uncomment the GPS pins below.
// -----------------------------------------------------------------------------
// #define HAS_GPS 1
// #define GPS_BAUDRATE 38400
// #define GPS_RX_PIN 44
// #define GPS_TX_PIN 43
// Fallback for code that references GPS_BAUDRATE without HAS_GPS guard
// (e.g. MyMesh.cpp CLI rescue command)
#ifndef GPS_BAUDRATE
#define GPS_BAUDRATE 9600
#endif
// -----------------------------------------------------------------------------
// RTC — PCF85063 (proper hardware RTC, battery-backed!)
// This is a significant upgrade over T-Deck Pro which has no RTC.
// -----------------------------------------------------------------------------
#define HAS_PCF85063_RTC 1
#define PCF85063_I2C_ADDR 0x51
#define PCF85063_INT_PIN 2
// -----------------------------------------------------------------------------
// PCA9535 IO Expander
// Controls e-ink power sequencing and has a user button
// -----------------------------------------------------------------------------
#define HAS_PCA9535 1
#define PCA9535_I2C_ADDR 0x20
#define PCA9535_INT_PIN 38
// PCA9535 pin assignments (directly from LilyGo schematic):
// Port 0 (IO0x): IO00-IO07 — mostly unused/reserved
// Port 1 (IO1x):
#define PCA9535_EP_OE 0 // IO10 — EP output enable (source driver)
#define PCA9535_EP_MODE 1 // IO11 — EP mode (gate driver)
#define PCA9535_BUTTON 2 // IO12 — User button via IO expander
#define PCA9535_TPS_PWRUP 3 // IO13 — TPS65185 power up
#define PCA9535_VCOM_CTRL 4 // IO14 — VCOM control
#define PCA9535_TPS_WAKEUP 5 // IO15 — TPS65185 wakeup
#define PCA9535_TPS_PWRGOOD 6 // IO16 — TPS65185 power good (input)
#define PCA9535_TPS_INT 7 // IO17 — TPS65185 interrupt (input)
// -----------------------------------------------------------------------------
// Buttons & Controls
// -----------------------------------------------------------------------------
#define BUTTON_PIN 0 // Boot button (GPIO0)
#define PIN_USER_BTN 0
// -----------------------------------------------------------------------------
// Power Management
// -----------------------------------------------------------------------------
#define HAS_BQ27220 1
#define BQ27220_I2C_ADDR 0x55
// T5S3 E-Paper Pro battery (1500 mAh — larger than T-Deck Pro's 1400 mAh)
#ifndef BQ27220_DESIGN_CAPACITY_MAH
#define BQ27220_DESIGN_CAPACITY_MAH 1500
#endif
#define AUTO_SHUTDOWN_MILLIVOLTS 2800
// No explicit peripheral power pin on T5S3 (unlike T-Deck Pro's PIN_PERF_POWERON)
// Peripherals are always powered when the board is on.