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Support for Elecrow Thinknode M2
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‎boards/ESP32-S3-WROOM-1-N4.json‎

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{
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"build": {
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"arduino": {
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"ldscript": "esp32s3_out.ld"
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},
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"core": "esp32",
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"extra_flags": [
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"-D ARDUINO_USB_CDC_ON_BOOT=0",
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"-D ARDUINO_USB_MSC_ON_BOOT=0",
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"-D ARDUINO_USB_DFU_ON_BOOT=0",
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"-D ARDUINO_USB_MODE=0",
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"-D ARDUINO_RUNNING_CORE=1",
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"-D ARDUINO_EVENT_RUNNING_CORE=1"
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],
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"f_cpu": "240000000L",
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"f_flash": "80000000L",
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"flash_mode": "qio",
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"hwids": [["0x303A", "0x1001"]],
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"mcu": "esp32s3",
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"variant": "ESP32-S3-WROOM-1-N4"
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},
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"connectivity": ["wifi", "bluetooth"],
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"debug": {
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"default_tool": "esp-builtin",
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"onboard_tools": ["esp-builtin"],
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"openocd_target": "esp32s3.cfg"
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},
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"frameworks": ["arduino", "espidf"],
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"name": "ESP32-S3-WROOM-1-N4 (4 MB Flash, No PSRAM)",
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"upload": {
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"flash_size": "4MB",
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"maximum_ram_size": 524288,
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"maximum_size": 4194304,
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"require_upload_port": true,
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"speed": 921600
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},
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"url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
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"vendor": "Espressif"
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}

‎variants/thinknode_m2/ThinknodeM2Board.cpp‎

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#include "ThinknodeM2Board.h"
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void ThinknodeM2Board::begin() {
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ESP32Board::begin();
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pinMode(PIN_VEXT_EN, OUTPUT); // init display
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digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // pin needs to be high
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delay(10);
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digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // need to do this twice. do not know why..
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pinMode(PIN_STATUS_LED, OUTPUT); // init power led
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}
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void ThinknodeM2Board::enterDeepSleep(uint32_t secs, int pin_wake_btn) {
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esp_deep_sleep_start();
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}
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void ThinknodeM2Board::powerOff() {
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enterDeepSleep(0);
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}
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uint16_t ThinknodeM2Board::getBattMilliVolts() {
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analogReadResolution(12);
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delay(10);
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float volts = (analogRead(PIN_VBAT_READ) * ADC_MULTIPLIER * AREF_VOLTAGE) / 4096;
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analogReadResolution(10);
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return volts * 1000;
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}
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const char* ThinknodeM2Board::getManufacturerName() const {
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return "Elecrow ThinkNode M2";
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}

‎variants/thinknode_m2/ThinknodeM2Board.h‎

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#pragma once
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#include <Arduino.h>
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#include <helpers/RefCountedDigitalPin.h>
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#include <helpers/ESP32Board.h>
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#include <driver/rtc_io.h>
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class ThinknodeM2Board : public ESP32Board {
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public:
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void begin();
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void enterDeepSleep(uint32_t secs, int pin_wake_btn = -1);
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void powerOff() override;
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uint16_t getBattMilliVolts() override;
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const char* getManufacturerName() const override ;
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};

‎variants/thinknode_m2/pins_arduino.h‎

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// Need this file for ESP32-S3
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// No need to modify this file, changes to pins imported from variant.h
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// Most is similar to https://github.com/espressif/arduino-esp32/blob/master/variants/esp32s3/pins_arduino.h
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#ifndef Pins_Arduino_h
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#define Pins_Arduino_h
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#include <stdint.h>
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#include <variant.h>
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#define USB_VID 0x303a
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#define USB_PID 0x1001
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// Serial
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static const uint8_t TX = GPS_TX;
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static const uint8_t RX = GPS_RX;
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// Default SPI will be mapped to Radio
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static const uint8_t SS = P_LORA_NSS;
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static const uint8_t SCK = P_LORA_SCLK;
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static const uint8_t MOSI = P_LORA_MISO;
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static const uint8_t MISO = P_LORA_MOSI;
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// The default Wire will be mapped to PMU and RTC
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static const uint8_t SCL = PIN_BOARD_SCL;
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static const uint8_t SDA = PIN_BOARD_SDA;
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#endif /* Pins_Arduino_h */

‎variants/thinknode_m2/platformio.ini‎

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[ThinkNode_M2]
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extends = esp32_base
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board = ESP32-S3-WROOM-1-N4
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build_flags = ${esp32_base.build_flags}
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-I variants/thinknode_m2
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-D THINKNODE_M2
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-D GPS_RX=44
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-D GPS_TX=43
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-D PIN_VEXT_EN=46
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-D PIN_BUZZER=5
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-D PIN_VEXT_EN_ACTIVE=HIGH
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-D PIN_BOARD_SCL=15
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-D PIN_BOARD_SDA=16
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-D P_LORA_DIO_1=3
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-D P_LORA_NSS=10
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-D P_LORA_RESET=21 ; RADIOLIB_NC
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-D P_LORA_BUSY=14 ; DIO2 = 38
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-D P_LORA_SCLK=12
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-D P_LORA_MISO=13
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-D P_LORA_MOSI=11
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-D PIN_USER_BTN=47
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-D PIN_STATUS_LED=6
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-D PIN_LED=6
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-D SX126X_DIO2_AS_RF_SWITCH=true
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-D SX126X_DIO3_TCXO_VOLTAGE=3.3
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-D SX126X_CURRENT_LIMIT=140
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-D DISPLAY_CLASS=SH1106Display
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-D RADIO_CLASS=CustomSX1262
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-D WRAPPER_CLASS=CustomSX1262Wrapper
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-D LORA_TX_POWER=22
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-D SX126X_RX_BOOSTED_GAIN=1
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-D MESH_DEBUG=1
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build_src_filter = ${esp32_base.build_src_filter}
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+<helpers/ui/SH1106Display.cpp>
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+<helpers/ui/MomentaryButton.cpp>
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+<helpers/ui/buzzer.cpp>
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+<../variants/thinknode_m2>
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lib_deps = ${esp32_base.lib_deps}
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adafruit/Adafruit SH110X @ ~2.1.13
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adafruit/Adafruit GFX Library @ ^1.12.1
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[env:ThinkNode_M2_Repeater]
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extends = ThinkNode_M2
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<../examples/simple_repeater/*.cpp>
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build_flags =
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${ThinkNode_M2.build_flags}
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-D ADVERT_NAME='"Thinknode M2 Repeater"'
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-D ADVERT_LAT=0.0
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-D ADVERT_LON=0.0
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-D ADMIN_PASSWORD='"password"'
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-D MAX_NEIGHBOURS=8
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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lib_deps =
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${ThinkNode_M2.lib_deps}
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${esp32_ota.lib_deps}
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; [env:ThinkNode_M2_Repeater_bridge_rs232]
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; extends = ThinkNode_M2
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; build_src_filter = ${ThinkNode_M2.build_src_filter}
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; +<helpers/bridges/RS232Bridge.cpp>
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; +<../examples/simple_repeater/*.cpp>
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; build_flags =
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; ${ThinkNode_M2.build_flags}
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; -D ADVERT_NAME='"RS232 Bridge"'
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; -D ADVERT_LAT=0.0
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; -D ADVERT_LON=0.0
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; -D ADMIN_PASSWORD='"password"'
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; -D MAX_NEIGHBOURS=8
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; -D WITH_RS232_BRIDGE=Serial2
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; -D WITH_RS232_BRIDGE_RX=5
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; -D WITH_RS232_BRIDGE_TX=6
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; ; -D MESH_PACKET_LOGGING=1
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; ; -D MESH_DEBUG=1
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; lib_deps =
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; ${ThinkNode_M2.lib_deps}
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; ${esp32_ota.lib_deps}
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[env:ThinkNode_M2_Repeater_bridge_espnow]
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extends = ThinkNode_M2
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<helpers/bridges/ESPNowBridge.cpp>
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+<../examples/simple_repeater/*.cpp>
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build_flags =
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${ThinkNode_M2.build_flags}
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-D ADVERT_NAME='"ESPNow Bridge"'
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-D ADVERT_LAT=0.0
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-D ADVERT_LON=0.0
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-D ADMIN_PASSWORD='"password"'
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-D MAX_NEIGHBOURS=8
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-D WITH_ESPNOW_BRIDGE=1
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-D WITH_ESPNOW_BRIDGE_SECRET='"shared-secret"'
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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lib_deps =
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${ThinkNode_M2.lib_deps}
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${esp32_ota.lib_deps}
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[env:ThinkNode_M2_room_server]
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extends = ThinkNode_M2
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<../examples/simple_room_server>
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build_flags =
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${ThinkNode_M2.build_flags}
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-D ADVERT_NAME='"Thinknode M2 Room Server"'
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-D ADVERT_LAT=0.0
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-D ADVERT_LON=0.0
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-D ADMIN_PASSWORD='"password"'
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-D ROOM_PASSWORD='"hello"'
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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lib_deps =
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${ThinkNode_M2.lib_deps}
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${esp32_ota.lib_deps}
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[env:ThinkNode_M2_terminal_chat]
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extends = ThinkNode_M2
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build_flags =
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${ThinkNode_M2.build_flags}
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-D MAX_CONTACTS=300
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-D MAX_GROUP_CHANNELS=8
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<../examples/simple_secure_chat/main.cpp>
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lib_deps =
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${ThinkNode_M2.lib_deps}
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densaugeo/base64 @ ~1.4.0
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[env:ThinkNode_M2_companion_radio_ble]
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extends = ThinkNode_M2
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build_flags =
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${ThinkNode_M2.build_flags}
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-I examples/companion_radio/ui-new
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-D MAX_CONTACTS=300
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-D MAX_GROUP_CHANNELS=8
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-D BLE_PIN_CODE=123456
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-D OFFLINE_QUEUE_SIZE=256
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; -D BLE_DEBUG_LOGGING=1
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<helpers/esp32/*.cpp>
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+<helpers/ui/MomentaryButton.cpp>
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+<../examples/companion_radio/*.cpp>
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+<../examples/companion_radio/ui-new/*.cpp>
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lib_deps =
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${ThinkNode_M2.lib_deps}
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densaugeo/base64 @ ~1.4.0
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[env:ThinkNode_M2_companion_radio_serial]
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extends = ThinkNode_M2
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build_flags =
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${ThinkNode_M2.build_flags}
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-I examples/companion_radio/ui-new
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-D MAX_CONTACTS=300
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-D MAX_GROUP_CHANNELS=8
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-D SERIAL_TX=D6
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-D SERIAL_RX=D7
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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build_src_filter = ${ThinkNode_M2.build_src_filter}
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+<helpers/esp32/*.cpp>
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+<helpers/ui/MomentaryButton.cpp>
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+<../examples/companion_radio/*.cpp>
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+<../examples/companion_radio/ui-new/*.cpp>
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lib_deps =
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${ThinkNode_M2.lib_deps}
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densaugeo/base64 @ ~1.4.0

‎variants/thinknode_m2/target.cpp‎

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#include <Arduino.h>
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#include "target.h"
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ThinknodeM2Board board;
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#if defined(P_LORA_SCLK)
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static SPIClass spi;
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
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#else
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
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#endif
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WRAPPER_CLASS radio_driver(radio, board);
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ESP32RTCClock fallback_clock;
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AutoDiscoverRTCClock rtc_clock(fallback_clock);
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SensorManager sensors;
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#ifdef DISPLAY_CLASS
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DISPLAY_CLASS display;
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MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
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#endif
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bool radio_init() {
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fallback_clock.begin();
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rtc_clock.begin(Wire);
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pinMode(21, INPUT);
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pinMode(48, OUTPUT);
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#if defined(P_LORA_SCLK)
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spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
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return radio.std_init(&spi);
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#else
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return radio.std_init();
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#endif
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}
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uint32_t radio_get_rng_seed() {
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return radio.random(0x7FFFFFFF);
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}
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
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radio.setFrequency(freq);
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radio.setSpreadingFactor(sf);
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radio.setBandwidth(bw);
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radio.setCodingRate(cr);
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}
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void radio_set_tx_power(uint8_t dbm) {
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radio.setOutputPower(dbm);
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}
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mesh::LocalIdentity radio_new_identity() {
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RadioNoiseListener rng(radio);
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return mesh::LocalIdentity(&rng); // create new random identity
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}
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‎variants/thinknode_m2/target.h‎

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#pragma once
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#define RADIOLIB_STATIC_ONLY 1
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#include <RadioLib.h>
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#include <helpers/radiolib/RadioLibWrappers.h>
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//#include <helpers/ESP32Board.h>
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#include <ThinknodeM2Board.h>
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#include <helpers/radiolib/CustomSX1262Wrapper.h>
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#include <helpers/AutoDiscoverRTCClock.h>
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#include <helpers/SensorManager.h>
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#ifdef DISPLAY_CLASS
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#include <helpers/ui/SH1106Display.h>
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#include <helpers/ui/MomentaryButton.h>
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#endif
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extern ThinknodeM2Board board;
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extern WRAPPER_CLASS radio_driver;
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extern AutoDiscoverRTCClock rtc_clock;
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extern SensorManager sensors;
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#ifdef DISPLAY_CLASS
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extern DISPLAY_CLASS display;
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extern MomentaryButton user_btn;
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#endif
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bool radio_init();
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uint32_t radio_get_rng_seed();
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
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void radio_set_tx_power(uint8_t dbm);
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mesh::LocalIdentity radio_new_identity();
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