Thinknode m4

boards/thinknode_m4.json

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+{
+  "build": {
+    "arduino": {
+      "ldscript": "nrf52840_s140_v6.ld"
+    },
+    "core": "nRF5",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DNRF52840_XXAA",
+    "f_cpu": "64000000L",
+    "hwids": [
+      [
+        "0x239A",
+        "0x4405"
+      ],
+      [
+        "0x239A",
+        "0x0029"
+      ],
+      [
+        "0x239A",
+        "0x002A"
+      ]
+    ],
+    "usb_product": "elecrow_thinknode_m4",
+    "mcu": "nrf52840",
+    "variant": "ELECROW-ThinkNode-M4",
+    "bsp": {
+      "name": "adafruit"
+    },
+    "softdevice": {
+      "sd_flags": "-DS140",
+      "sd_name": "s140",
+      "sd_version": "6.1.1",
+      "sd_fwid": "0x00B6"
+    },
+    "bootloader": {
+      "settings_addr": "0xFF000"
+    }
+  },
+  "connectivity": [
+    "bluetooth"
+  ],
+  "debug": {
+    "jlink_device": "nRF52840_xxAA",
+    "onboard_tools": [
+      "jlink"
+    ],
+    "svd_path": "nrf52840.svd",
+    "openocd_target": "nrf52.cfg"
+  },
+  "frameworks": [
+    "arduino"
+  ],
+  "name": "elecrow nrf",
+  "upload": {
+    "maximum_ram_size": 235520,
+    "maximum_size": 815104,
+    "speed": 115200,
+    "use_1200bps_touch": true,
+    "require_upload_port": true,
+    "wait_for_upload_port": true,
+    "protocol": "nrfutil",
+    "protocols": [
+      "jlink",
+      "nrfjprog",
+      "nrfutil",
+      "stlink"
+    ]
+  },
+  "url": "https://github.com/Elecrow-RD",
+  "vendor": "ELECROW"
+}

variants/thinknode_m4/ThinkNodeM4Board.cpp

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+#include <Arduino.h>
+#include "ThinkNodeM4Board.h"
+#include <Wire.h>
+
+#include <bluefruit.h>
+
+void ThinkNodeM4Board::begin() {
+  NRF52Board::begin();
+  btn_prev_state = HIGH;
+
+  Wire.begin();
+  battery_serial->begin(4800);
+
+  delay(10);   // give sx1262 some time to power up
+}
+
+uint16_t ThinkNodeM4Board::getBattMilliVolts() {
+  int tentatives = 10;
+  uint8_t data[5];
+  uint8_t b;
+
+  if (battery_serial->available() < 10)
+    return bat_level_mv;
+
+  // discard old data
+  while (battery_serial->available() > 10)
+    battery_serial->read();
+
+  // synchronize
+  while((b = battery_serial->read()) != 0xFE) {
+    if (tentatives-- == 0) {
+      MESH_DEBUG_PRINTLN("Could not find battery frame start %x", b);
+      return bat_level_mv;
+    }
+  }
+  battery_serial->readBytes(data, 5);
+
+  if (data[4] != 0xFD) {
+    MESH_DEBUG_PRINTLN("Invalid battery frame end %x", data[4]);
+    return bat_level_mv;
+  }
+  bat_level_percent = data[0];
+  //MESH_DEBUG_PRINTLN("Battery level %d\%", bat_level_percent);
+  bat_level_mv = 2 * (data[1]*1000. + data[2]*10. + data[3]/10.);
+  return bat_level_mv;
+}

variants/thinknode_m4/ThinkNodeM4Board.h

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+#pragma once
+
+#include <Arduino.h>
+#include <MeshCore.h>
+#include <helpers/NRF52Board.h>
+
+class ThinkNodeM4Board : public NRF52BoardDCDC {
+protected:
+#if NRF52_POWER_MANAGEMENT
+  void initiateShutdown(uint8_t reason) override;
+#endif
+  uint8_t btn_prev_state;
+  HardwareSerial * battery_serial;
+  uint16_t bat_level_mv = 0;
+  uint8_t bat_level_percent =0;
+
+public:
+  ThinkNodeM4Board() : NRF52Board("THINKNODE_M3_OTA"), battery_serial(&Serial2) {}
+  void begin();
+  uint16_t getBattMilliVolts() override;
+
+#ifdef P_LORA_TX_LED
+  void onBeforeTransmit() override {
+    digitalWrite(P_LORA_TX_LED, LED_STATE_ON);  // turn TX LED on
+  }
+  void onAfterTransmit() override {
+    digitalWrite(P_LORA_TX_LED, !LED_STATE_ON); // turn TX LED off
+  }
+#endif
+
+  const char* getManufacturerName() const override {
+    return "Elecrow ThinkNode M4";
+  }
+
+  int buttonStateChanged() {
+  #ifdef BUTTON_PIN
+    uint8_t v = digitalRead(BUTTON_PIN);
+    if (v != btn_prev_state) {
+      btn_prev_state = v;
+      return (v == USER_BTN_PRESSED) ? 1 : -1;
+    }
+  #endif
+    return 0;
+  }
+
+  void shutdownPeripherals() override {
+    // shutdown common peripherals
+    NRF52Board::shutdownPeripherals();
+
+    #ifdef LED_STATUS
+    digitalWrite(LED_STATUS, HIGH);
+    #endif
+    #ifdef BUTTON_PIN
+    while(!digitalRead(BUTTON_PIN));
+    #endif
+    #ifdef LED_STATUS
+    digitalWrite(LED_STATUS, LOW);
+    #endif
+
+    digitalWrite(LED_BAT1, LOW);
+    digitalWrite(LED_BAT2, LOW);
+    digitalWrite(LED_BAT3, LOW);
+    digitalWrite(LED_BAT4, LOW);
+    digitalWrite(LED_STATUS, LOW);
+    digitalWrite(LED_PIN, LOW);
+
+    digitalWrite(PIN_PWR_EN, LOW);
+    digitalWrite(I2C_POWER, !I2C_POWER_ACTIVE);
+    digitalWrite(PIN_GPS_POWER, !GPS_POWER_ACTIVE);
+
+    #ifdef BUTTON_PIN
+    nrf_gpio_cfg_sense_input(BUTTON_PIN, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_SENSE_LOW);
+    #endif
+  }
+};

variants/thinknode_m4/platformio.ini

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+[ThinkNode_M4]
+extends = nrf52_base
+board = thinknode_m4
+board_build.ldscript = boards/nrf52840_s140_v6.ld
+build_flags = ${nrf52_base.build_flags}
+  -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
+  -I variants/thinknode_m4
+  -I src/helpers/ui
+  -D THINKNODE_M4
+  -D PIN_USER_BTN=4
+  -D PIN_STATUS_LED=LED_STATUS
+  -D RADIO_CLASS=CustomLR1110
+  -D WRAPPER_CLASS=CustomLR1110Wrapper
+  -D LORA_TX_POWER=22
+  -D RF_SWITCH_TABLE
+  -D RX_BOOSTED_GAIN=true
+  -D P_LORA_BUSY=26
+  -D P_LORA_SCLK=6
+  -D P_LORA_NSS=27
+  -D P_LORA_DIO_1=12
+  -D P_LORA_MISO=8
+  -D P_LORA_MOSI=7
+  -D P_LORA_RESET=40
+  -D P_LORA_TX_LED=LED_TX
+  -D LR11X0_DIO_AS_RF_SWITCH=true
+  -D LR11X0_DIO3_TCXO_VOLTAGE=1.6
+  -D ENV_INCLUDE_GPS=1
+;  -D MESH_DEBUG=1
+;  -D GPS_NMEA_DEBUG=1
+build_src_filter = ${nrf52_base.build_src_filter}
+  +<helpers/*.cpp>
+  +<../variants/thinknode_m4>
+  +<helpers/sensors>
+debug_tool = stlink
+upload_protocol = nrfutil
+lib_deps= ${nrf52_base.lib_deps}
+
+[env:ThinkNode_M4_repeater]
+extends = ThinkNode_M4
+build_flags = ${ThinkNode_M4.build_flags}
+  -I examples/companion_radio/ui-orig
+  -D ADVERT_NAME='"ThinkNode_M4 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
+build_src_filter = ${ThinkNode_M4.build_src_filter}
+  +<../examples/simple_repeater>
+lib_deps = ${ThinkNode_M4.lib_deps}
+  stevemarple/MicroNMEA @ ^2.0.6
+
+[env:ThinkNode_M4_room_server]
+extends = ThinkNode_M4
+build_flags = ${ThinkNode_M4.build_flags}
+  -I examples/companion_radio/ui-orig
+  -D ADVERT_NAME='"ThinkNode_M4 Room"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D ROOM_PASSWORD='"hello"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+  -D RF_SWITCH_TABLE
+build_src_filter = ${ThinkNode_M4.build_src_filter}
+  +<../examples/simple_room_server>
+lib_deps = ${ThinkNode_M4.lib_deps}
+  stevemarple/MicroNMEA @ ^2.0.6
+
+[env:ThinkNode_M4_companion_radio_usb]
+extends = ThinkNode_M4
+board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
+board_upload.maximum_size = 708608
+build_flags = ${ThinkNode_M4.build_flags}
+  -I examples/companion_radio/ui-orig
+  -D MAX_CONTACTS=350
+  -D MAX_GROUP_CHANNELS=40
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+  -D OFFLINE_QUEUE_SIZE=256
+  -D DISPLAY_CLASS=NullDisplayDriver
+  -D PIN_BUZZER=23
+  -D PIN_BUZZER_EN=36
+  -D ENABLE_USB_INTERFACE
+build_src_filter = ${ThinkNode_M4.build_src_filter}
+  +<helpers/ui/buzzer.cpp>
+  +<helpers/ui/NullDisplayDriver.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-orig/*.cpp>
+lib_deps = ${ThinkNode_M4.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+  stevemarple/MicroNMEA @ ^2.0.6
+  end2endzone/NonBlockingRTTTL@^1.3.0
+
+[env:ThinkNode_M4_companion_radio_ble]
+extends = ThinkNode_M4
+board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
+board_upload.maximum_size = 708608
+build_flags = ${ThinkNode_M4.build_flags}
+  -I examples/companion_radio/ui-orig
+  -D MAX_CONTACTS=350
+  -D MAX_GROUP_CHANNELS=40
+  -D BLE_PIN_CODE=123456
+  -D BLE_TX_POWER=0
+;  -D BLE_DEBUG_LOGGING=1
+;  -D MESH_PACKET_LOGGING=1
+  -D OFFLINE_QUEUE_SIZE=256
+  -D DISPLAY_CLASS=NullDisplayDriver
+  -D PIN_BUZZER=23
+  -D PIN_BUZZER_EN=36
+build_src_filter = ${ThinkNode_M4.build_src_filter}
+  +<helpers/nrf52/SerialBLEInterface.cpp>
+  +<helpers/ui/buzzer.cpp>
+  +<helpers/ui/NullDisplayDriver.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-orig/*.cpp>
+lib_deps = ${ThinkNode_M4.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+  stevemarple/MicroNMEA @ ^2.0.6
+  end2endzone/NonBlockingRTTTL@^1.3.0
+
+[env:ThinkNode_M4_kiss_modem]
+extends = ThinkNode_M4
+build_src_filter = ${ThinkNode_M4.build_src_filter}
+  +<../examples/kiss_modem/>
+lib_deps = ${ThinkNode_M4.lib_deps}
+  stevemarple/MicroNMEA @ ^2.0.6