mirror of
https://github.com/Genaker/LoraSA.git
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543 lines
21 KiB
Markdown
543 lines
21 KiB
Markdown
# Lora SA(Spectrum Analyzer)
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## Index
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- [Supported boards](#supported-boards)
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- [RF Spectrum Analyzer using Lora Radio](#rf-spectrum-analyzer-using-lora-radio)
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- [Features](#features)
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- [Multiple Ranges Scan](#multiple-ranges-scan)
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- [Waterfall](#waterfall)
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- [RSSI Method of scan](#rssi-method-of-scan)
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- [Multi Screen Scan](#multi-screen-scan)
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- [Mute Audio Notifications](#mute-audio-notifications)
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- [Pause Execution](#pause-execution)
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- [VSCode Platform.IO development env installation](#vscode-platformio-development-env-installation)
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- [Hardware](#hardware)
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- [3D printed case](#3d-printed-case)
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- [Heltec ESP32 Lora v3 Pin Map](#heltec-esp32-lora-v3-pin-map)
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- [Analog FPV OSD (ON SCREEN DISPLAY) using DFRobot OSD](#analog-fpv-osd-on-screen-display-using-dfrobot-osd)
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- [Joystick Wiring](#joystick-wiring)
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- [Buzzer/Beeper Wiring](#buzzerbeeper-wiring)
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- [Select Board to build](#select-board-to-build)
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- [WiFi and Bluetooth BT Scanning](#wifi-and-bluetooth-bt-scanning)
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- [Communication via Serial USB](#communication-via-serial-usb)
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- [Web app](#web-app)
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- [Send Scan Data via Lora](#send-scan-data-via-lora)
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- [Seek on Jam / FPV OSD using Flight controller](#seek-on-jam-fpv-osd-using-flight-controller)
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- [Platformio targets](#platformio-targets)
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## Supported boards:
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### Heltec Automation:
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- Heltec Lora V3 128 x 64 OLED
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- Heltec Wireless Stick V3 64 x 32 (Not tested)
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- Heltec Wireless Stick Lite V3 No Display (Not Tested)
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- Heltec Vision Master E290 - e-Ink 296 x 128 (No OSD)
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- Heltec Vision Master T190 - color TFT 320X170 (No OSD)
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### LilyGo:
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- LilyGo Radio Lora T3S3 V.2 SX1262
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- LilyGo Radio Lora T3S3 V.2 SX1280
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- LilyGo Radio Lora T3S3 V.2 LR1121
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- LilyGo Radio Lora T3_V1.6.1 SX1276 (Not Tested)
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## RF Spectrum Analyzer using Lora Radio
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<img src="https://github.com/user-attachments/assets/4caeb467-1964-4184-ab20-ba68b97144aa" alt="LORA hardware" width="200"/>
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Based on RadioLib SX126x Spectrum Scan.
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Perform a spectrum power scan using SX126x.
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The output is in the form of scan lines; each line has 33 power bins.
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The first power bin corresponds to -11 dBm, the second to -15 dBm, and so on.
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The higher number of samples in a bin corresponds to more power received
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at that level.
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<details>
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<summary>Click to expand to show BIN <> dBm mapping</summary>
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```text
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N in Bin / dBm
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(0)1 -11
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2 -15
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3 -19
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4 -23
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5 -27
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6 -31
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7 -35
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8 -39
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9 -43
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10 -47
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11 -51
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12 -55
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13 -59
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14 -63
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15 -67
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16 -71
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17 -75
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18 -79
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19 -83
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20 -87
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21 -91
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22 -95
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23 -99
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24 -103
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25 -107
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26 -111
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27 -115
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28 -119
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29 -123
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30 -127
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31 -131
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32 -135
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33 -139
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```
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</details>
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Example:
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```text
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step-13 Frequency:816.25
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Power Bins: 0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0000,0400, 0000,0000,0000,0000,0000,0000,0006,001B,000E,0005,0006,0002,0000
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```
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The spectrum analyzer performs power measurements in the configured bandwidth.
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The X-axis represents frequency in MHz, and the Y-axis displays actually received power.
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In the example above, the frequency span goes from 850 MHz to 950 MHz (that is a 100MHz range), and
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the visual amplitude goes from -11 dBm to -110(-139) according to the datasheet (High sensitivity: down to -148dBm) dBm.
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To show the results in a plot, run the Python script
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RadioLib/extras/SX126x_Spectrum_Scan/SpectrumScan.py
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## Features
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### Multiple Ranges Scan
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Disabled By Default
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```c
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// Feature to scan diapazones. Other frequency settings will be ignored.
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int SCAN_DIAPAZONES[] = {};
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//int SCAN_DIAPAZONES[] = {850890, 920950};
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```
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To Enable Add/ uncomment an array of the frequencies
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```c
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int SCAN_DIAPAZONES[] = {850890, 920950};
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```
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where 850890 stands for 950-890Mhz range
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920950 - 920-890Mhz
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Other settings will be ignored if **Multiple Ranges Scan** is enabled.
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### Waterfall
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Waterfall showed only on One Page Scan
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to disable - uncomment this line
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```c
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#define WATERFALL_ENABLED true
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```
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Waterfall shows the last **N** = SCREEN_HEIGHT (64) - WATERFALL_START(37) - 8 (part of the ROW_STATUS_TEXT) = **19** signal detection that exceeded set signal level
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### RSSI Method of scan
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By default, we are using the spectralScan method of the RadioLib Library: <https://jgromes.github.io/RadioLib/class_s_x126x.html#a8a3ad4e12df862ab18b326d9dba26d66>
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This method works only with Sx1262 modules.
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We implemented a scan using the **getRSSI** method, which has more flexibility and supports sx1276 and other modules.
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Using this method, we also receive the signal's **dB** values, not just the O-33 number.
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To enable this method, set the value of the **RSSI_METHOD** to true.
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### Multi Screen Scan
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Single screen scan for now has **RANGE / 128** resolution.
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Multi-page scan can be adjusted to how many MHz per page you want to scan
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```c
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// frequency range in MHz to scan
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#define FREQ_BEGIN 850
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// TODO: if % RANGE_PER_PAGE != 0
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#define FREQ_END 950
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// Feature to scan diapazones. Other frequency settings will be ignored.
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int SCAN_DIAPAZONES[] = {};
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// int SCAN_DIAPAZONES[] = {850890, 920950};
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// MHZ per page
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//To put everything into one page set RANGE_PER_PAGE = FREQ_END - 800
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unsigned int RANGE_PER_PAGE = FREQ_END - FREQ_BEGIN; // FREQ_END - FREQ_BEGIN
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//To Enable Multi Screen scan
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// unsigned int RANGE_PER_PAGE = 50;
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// Default Range on Menu Button Switch
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#define DEFAULT_RANGE_PER_PAGE = 50;
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```
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To enable Multi-page by default set **RANGE_PER_PAGE** less than **FREQ_END - FREQ_BEGIN**;
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Switch to multi-page during regular One Screen application run. Restart the ESP32 on screen after the logo press the P button.
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### Mute Audio Notifications
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Restart ESP32, and on the logo display, press the P button.
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### Pause Execution
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Press P for more than 2 seconds. Execution will pause, and the scan's current Mhz position will be shown on the display.
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If less, ESP32 will turn off. Fast pressing(less than 0.5 second) P button changes the notification level
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## VSCode Platform.IO development env installation
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1. Install VSCode
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2. install Platform.IO extension
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3. Connect ESP32 to USB. Install USB CP2101 drivers for Windows or other OS
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https://docs.heltec.org/general/establish_serial_connection.html#for-windows
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https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads
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## NOTE: MACOS Heltec USB driver
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https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads <br/>
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I used legacy driver
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5. Clone this Git Repo or download zip of the sources
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```bash
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git clone https://github.com/Genaker/LoraSA.git
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```
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NOTE: in your case name will be just LoraSA. I have LoraSA2 because I already have LoraSA folder
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6. Open the Project with the VS code Platform.IO
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7. Select Proper Environment
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---
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>**Important note:** If using a Heltec V3 board, make sure your ESP32 Expressif catalog is up to date before selecting environment, otherwise might get a build time error such as: `Error: Unknown board ID 'heltec_wifi_lora_32_V3'` when trying to select the environment.
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>
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>Open a PlatformIO CLI: https://docs.platformio.org/en/latest/integration/ide/vscode.html#platformio-core-cli
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>
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>Run: `pio pkg update -g -p espressif32`
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8. Select ESP32 USB Device to program
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Note: It is theoretically possible to program via WiFi and BTH.
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9. Program your ESP32
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10. Wait until you are done with the compilation and upload.
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Usually takes 1 minute. The first run is slower. It needs to compile all libraries.
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You will have the UCOG SA logo and spectrum analyzing scanning screen when done.
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## Hardware
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- Heltec ESP32 Lora V3:
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- [Amazon](https://www.amazon.com/Heltec-Development-863-870MHz-ESP32-S3FN8-902-928MHz/dp/B0D1H1FN9Y/)
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- [Heltec](https://heltec.org/project/wifi-lora-32-v3/)
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- [AliExpress](https://www.aliexpress.us/item/3256807037422978.html)
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- Heltec Wireless Stick. The same hardware but without or with a smaller display
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- [Heltec: Wireless Stick V3](https://heltec.org/project/wireless-stick-v3/)
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- [Heltec: Wireless Stick Lite V3](https://heltec.org/project/wireless-stick-lite-v2/)
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- Heltec Vision Master E290 - With large e-ink display 293x128:
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- [Heltec](https://heltec.org/project/vision-master-e290/)
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- [AliExpress](https://www.aliexpress.us/item/3256807048047234.html)
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- Heltec Vision Master T190 - With large color TFT 320x170 display:
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- [Heltec](https://heltec.org/project/vision-master-t190/)
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- [AliExpress](https://www.aliexpress.us/item/1005007760785910.html)
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**NOTE: to upload a new code, you need to press BOOT + RESET button**
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Battery with Wire JT connector :
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<https://www.amazon.com/EEMB-2000mAh-Battery-Rechargeable-Connector/dp/B08214DJLJ>
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## 3D printed case
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<https://www.printables.com/model/118750-heltec-lora-32-case-for-meshtastic>
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<https://www.thingiverse.com/thing:3125854>
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<https://thangs.com/designer/Snake0017/3d-model/Heltec%20LoRa%2032%20Desktop%20%26%20Vehicle%20Enclosure-40844>
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or buy :
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<https://www.amazon.com/DIYmalls-ESP32-OLED-WiFi-Type-C/dp/B0BR3MQ9BG>
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<https://www.thingiverse.com/thing:6522462>
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## Heltec ESP32 Lora v3 Pin Map
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We are using pin 41 as a Buzzer trigger. Connect buzzer + leg with pin 41 and - leg with the ground (GND). You can change the buzzer pin in the code.
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## Analog FPV OSD (ON SCREEN DISPLAY) using DFRobot OSD:
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To Enable OSD, Uncomment these lines </br>
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<details>
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<summary>Click to expand to show how to set up OSD for DFrobot board</summary>
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```cpp
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// #define OSD_ENABLED true
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```
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**OSD sidebar enabled/disable**
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comment or uncomment this line
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```cpp
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#define OSD_SIDE_BAR true
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```
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Or you can set this and other variables as a build parameter:
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```
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build_flags =
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-DOSD_ENABLED
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```
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#### DFRobot OSD Wiring
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**Heltec V3 -> DFRobot OSD** <br />
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GND -> GND <br />
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3V3 -> 3V3 <br />
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26 -> SCK <br />
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34 ->MOSI <br />
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33 ->MISO <br />
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47 -> D3 <br />
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More photos you can see there: <br />
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https://github.com/Genaker/LoraSA/issues/11
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#### Camera to DF robot Wiring
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**Camera -> DFRobotOSD** <br />
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Video out -> In <br />
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GND -> GND <br />
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3v3 -> 3V3 Heltec or some 3v on FPV <br />
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#### DFRobot to Drone or VTX(video transmitter)
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**DF Robot -> VTX or** <br />
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Video Out - Video IN <br />
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```
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// SPI pins
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#define OSD_CS 47
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#define OSD_MISO 33
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#define OSD_MOSI 34
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#define OSD_SCK 26
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```
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FOR LYLIGO board
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```
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#define OSD_SCK 38
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#define OSD_CS 39
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#define OSD_MISO 40
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#define OSD_MOSI 41
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```
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</details>
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## Joystick Wiring
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https://www.aliexpress.us/item/2251832815289133.html
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https://www.amazon.com/dp/B00P7QBGD2
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**Joystick -> Heltec V3** <br />
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SW -> 46 <br />
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VRX -> 19 <br />
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VRY -> X has not been implemented yet <br />
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+5v -> 5V <br />
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GND -> GND <br />
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## Buzzer/Beeper Wiring
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TMB12A03 - in my case. Low voltage is better. <br />
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**Buzzer -> Heltec V3** <br />
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(+) -> 41 <br />
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GND (another) -> GND <br />
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## Select Board to build
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Select Visual Code environment:
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Edit **platformio.ini** uncommenting/selecting your sources
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Heltec boards: no need to change anything, but for T190 and E290 you need to change the src_dir to tft_src or eink_src respectively.
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```
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[platformio]
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; for env:vision-master-e190
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; src_dir = tft_src
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; for env:vision-master-e290
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; src_dir = eink_src
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; for env:heltec_wifi_lora_32_V3
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; src_dir = src ;;Default
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```
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for LilyGo use env:heltec_wifi_lora_32_V3
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## WiFi and Bluetooth BT Scanning
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Works only with OSD enabled <br/>
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Uncomment this lines
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```
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// #define OSD_ENABLED true
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// #define WIFI_SCANNING_ENABLED true
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// #define BT_SCANNING_ENABLED true
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```
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## Communication via Serial USB:
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You can receive RAW frequency data from the ESP32 by sending the serial command **Scan -1 -1**. Other parameters are also available.
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Also, you can use ASCII_SA.py to read data from serial and represent as an ASCII character chart on your device. </br>
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Install **pyserial**:
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```
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pip3 install pyserial
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```
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Run:
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```
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python3 ASCII_SA.py
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```
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or with parameters to set input
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```
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python3 ASCII_SA.py --resolution 1 --threshold -110 --db-per-hash 5 --no-color --no-debug
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```
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Output:
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<img width="861" alt="image" src="https://github.com/user-attachments/assets/131842e6-2216-4da1-adb3-accb0fb80427">
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## Web app
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We also have a web app interface to output ESP Lora data via USB/Serial </br>
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Go to the website (https://lora-sa.pages.dev/), click connect and select a device: </br>
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Known issue: doesn't work on mobile ;(</br>
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https://lora-sa.pages.dev/
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|  | <img width="1625" alt="image" src="https://github.com/user-attachments/assets/71acf551-f256-47ab-b95e-116b2fefcdaa"> |
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## Send Scan Data via Lora
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Enable feature:
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```
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# /lib/config/config.h
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listen_on_usb(String("readline")), rx_lora(NULL), tx_lora(NULL),
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// Enable Lora Send:
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// rx_lora(configureLora("freq:920")),tx_lora(configureLora("freq:916"))
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is_host(false)
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```
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is_host(false) - for host receiver or can be set via Serial command ***SET is_host true*** <br>
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The Host automatically outputs data to serial that can be read by our Python Serail app<br>
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Example of the serial out:
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<details>
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<summary>Click to expand to show Lora Scan Data</summary>
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```
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SCAN_RESULT 258 [ (850000, -106), (850389, -106), (850778, -110), (851167, -110), (851556, -110), (851945, -110), (852334, -110), (852723, -110), (853112, -106), (853501, -106), (853890, -106), (854279, -83), (854668, -83), (855057, -110), (855446, -110), (855835, -110), (856224, -110), (856613, -110), (857002, -110), (857391, -110), (857780, -110), (858169, -110), (858558, -110), (858947, -110), (859336, -110), (859725, -110), (860114, -110), (860503, -110), (860892, -110), (861281, -110), (861670, -110), (862059, -110), (862448, -110), (862837, -110), (863226, -110), (863615, -106), (864004, -106), (864393, -110), (864782, -110), (865171, -110), (865560, -110), (865949, -110), (866338, -110), (866727, -110), (867116, -110), (867505, -110), (867894, -110), (868283, -110), (868672, -101), (869061, -101), (869450, -102), (869839, -102), (870228, -101), (870617, -101), (871006, -101), (871395, -98), (871784, -98), (872173, -89), (872562, -89), (872951, -92), (873340, -92), (873729, -85), (874118, -85), (874507, -90), (874896, -90), (875285, -90), (875674, -85), (876063, -85), (876452, -93), (876841, -93), (877230, -90), (877619, -90), (878008, -101), (878397, -101), (878786, -110), (879175, -110), (879564, -110), (879953, -90), (880342, -90), (880731, -93), (881120, -93), (881509, -96), (881898, -96), (882287, -91), (882676, -91), (883065, -91), (883454, -86), (883843, -86), (884232, -93), (884621, -93), (885010, -91), (885399, -91), (885788, -89), (886177, -89), (886566, -85), (886955, -85), (887344, -85), (887733, -87), (888122, -87), (888511, -93), (888900, -93), (889289, -110), (889678, -110), (890067, -110), (890456, -110), (890845, -110), (891234, -110), (891623, -110), (892012, -110), (892401, -110), (892790, -110), (893179, -110), (893568, -110), (893957, -110), (894346, -110), (894735, -110), (895124, -106), (895513, -106), (895902, -106), (896291, -110), (896680, -110), (897069, -110), (897458, -110), (897847, -110), (898236, -110), (898625, -110), (899014, -110), (899403, -110), (899792, -110), (900181, -110), (900570, -110), (900959, -110), (901348, -110), (901737, -110), (902126, -110), (902515, -110), (902904, -110), (903293, -110), (903682, -110), (904071, -110), (904460, -110), (904849, -110), (905238, -110), (905627, -110), (906016, -110), (906405, -110), (906794, -110), (907183, -110), (907572, -110), (907961, -110), (908350, -110), (908739, -110), (909128, -110), (909517, -110), (909906, -110), (910295, -110), (910684, -110), (911073, -110), (911462, -110), (911851, -110), (912240, -110), (912629, -110), (913018, -110), (913407, -110), (913796, -110), (914185, -110), (914574, -110), (914963, -110), (915352, -110), (915741, -110), (916130, -110), (916519, -110), (916908, -110), (917297, -110), (917686, -110), (918075, -110), (918464, -110), (918853, -110), (919242, -110), (919631, -110), (920020, -110), (920409, -110), (920798, -110), (921187, -110), (921576, -110), (921965, -110), (922354, -110), (922743, -110), (923132, -110), (923521, -110), (923910, -110), (924299, -110), (924688, -110), (925077, -110), (925466, -110), (925855, -110), (926244, -110), (926633, -110), (927022, -110), (927411, -110), (927800, -110), (928189, -110), (928578, -110), (928967, -110), (929356, -110), (929745, -110), (930134, -110), (930523, -110), (930912, -110), (931301, -110), (931690, -110), (932079, -110), (932468, -110), (932857, -110), (933246, -110), (933635, -110), (934024, -110), (934413, -110), (934802, -110), (935191, -110), (935580, -103), (935969, -103), (936358, -110), (936747, -110), (937136, -110), (937525, -110), (937914, -110), (938303, -110), (938692, -110), (939081, -110), (939470, -110), (939860, -110), (940250, -110), (940640, -110), (941030, -110), (941420, -110), (941810, -110), (942200, -110), (942590, -110), (942980, -110), (943370, -110), (943760, -110), (944150, -110), (944540, -110), (944930, -110), (945320, -110), (945710, -110), (946100, -110), (946490, -110), (946880, -110), (947270, -110), (947660, -110), (948050, -110), (948440, -110), (948830, -110), (949220, -110), (949610, -110), (950000, -110) ]
|
|
```
|
|
</details>
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|
|
|
|
|
## Seek on Jam / FPV OSD using Flight controller:
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|
|
|
Needs MILBETA 1.47 or later.
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|
|
|
Use target `seek-on-jam-sx1280` or `seek-on-jam-lr1121`. Make sure the pins are correct.
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|
|
I am using LilyGo T3S3 **V1.2** board for seek on jam, this board has a connector for GND, 3.3V, RX and TX for UART SERIAL. No need to solder to the board itself.
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|
|
|
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|
|
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Only GND, 3.3V and TX are needed.
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|
|
|
Use connector and solder to RPI or similar, I'm using a RPI Zero 2. The targets in platformio.ini are set to use `-DTX_PIN=43` which corresponds to the built-in connector on the T3S3 V1.2 board. RPI Zero2 needs to use the proxy.
|
|
|
|
## Platformio targets:
|
|
|
|
### 1. `heltec_wifi_lora_32_V3`
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|
- **Chip Used**: Heltec WiFi LoRa 32 V3
|
|
- **Frequency**: 150 - 850 MHz
|
|
|
|
### 2. `heltec_wifi_lora_32_V3-OSD`
|
|
- **Chip Used**: Heltec WiFi LoRa 32 V3
|
|
- **Frequency**: Not specified
|
|
- **Unique Features**: Includes OSD (On-Screen Display) specific flags `-DOSD_ENABLED` and `-DOSD_SIDE_BAR`.
|
|
|
|
### 3. `heltec_wifi_lora_32_V3_433`
|
|
- **Chip Used**: Heltec WiFi LoRa 32 V3
|
|
- **Frequency**: 130 MHz to 180 MHz
|
|
- **Unique Features**: Frequency range specified with `-DFREQ_BEGIN=130` and `-DFREQ_END=180`.
|
|
|
|
### 4. `lilygo-T3S3-v1-2-sx1262`
|
|
- **Chip Used**: LilyGO T3 S3 V1.2 with SX1262
|
|
- **Frequency**: 150 - 850 MHz
|
|
- **Unique Features**: Uses SX1262 chip with specific flags like `-DT3_S3_V1_2_SX1262`.
|
|
|
|
### 5. `lilygo-T3S3-v1-2-lr1121`
|
|
- **Chip Used**: LilyGO T3 S3 V1.2 with LR1121
|
|
- **Frequency**: 2400 MHz to 2500 MHz
|
|
|
|
### 6. `lilygo-T3S3-v1-2-sx1280`
|
|
- **Chip Used**: LilyGO T3 S3 V1.2 with SX1280
|
|
- **Frequency**: 2400 MHz to 2500 MHz
|
|
- **Unique Features**: Includes `-DSERIAL_OUT` for serial output.
|
|
|
|
### 7. `lilygo-T3-v1-6-xs1276`
|
|
- **Chip Used**: LilyGO T3 V1.6 with SX1276
|
|
- **Frequency**: 150 - 850 MHz
|
|
- **Unique Features**: `-DARDUINO_USB_CDC_ON_BOOT=0` to avoid serial issues.
|
|
- **Warning**: Not tested yet.
|
|
|
|
### 8. `vision-master-e290`
|
|
- **Chip Used**: Heltec WiFi LoRa 32 V3
|
|
- **Frequency**: 150 - 850 MHz
|
|
|
|
### 9. `vision-master-t190`
|
|
- **Chip Used**: Heltec WiFi LoRa 32 V3
|
|
- **Frequency**: 150 - 850 MHz
|
|
- **Unique Features**: Includes `-DROTATION=1` for display rotation. 1 == normal 3 == upside down
|
|
|
|
### 10. `seek-on-mavic-sx1280`
|
|
- **Chip Used**: LilyGO T3 S3 V1.2 with SX1280
|
|
- **Frequency**: 2410 MHz to 2452 MHz (Mavic 3 frequency ranges)
|
|
- **Unique Features**:
|
|
- `-DLOG_DATA_JSON=1` for JSON logging
|
|
- `-DDISABLE_SDCARD` to disable SD card and make boot faster
|
|
- `-DSERIAL_OUT` to enable serial output
|
|
- `-DSEEK_ON_X` to enable seek on jam
|
|
- `-DBANDWIDTH=4.8` to set the bandwidth to 4.8 kHz
|
|
|
|
### 11. `seek-on-mavic-lr1121`
|
|
- **Chip Used**: LilyGO T3 S3 V1.2 with LR1121
|
|
- **Frequency**: 2410 MHz to 2452 MHz (Mavic 3 frequency ranges)
|
|
- **Unique Features**:
|
|
- `-DLOG_DATA_JSON=1` for JSON logging
|
|
- `-DDISABLE_SDCARD` to disable SD card and make boot faster
|
|
- `-DSERIAL_OUT` to enable serial output
|
|
- `-DSEEK_ON_X` to enable seek on jam
|
|
- `-DBANDWIDTH=4.8` to set the bandwidth to 4.8 kHz
|
|
|
|
### 12. Compass Integration:
|
|
Lyligo only
|
|
```
|
|
X DROY(not used)
|
|
GPIO46 -> SDA
|
|
GPIO42 -> SCLA
|
|
GND -> GND
|
|
3.3V -> VCC
|
|
```
|
|
Module: GY-271
|
|
|
|
https://www.amazon.com/HiLetgo-GY-271-QMC5883L-Compass-Magnetometer/dp/B008V9S64E
|