Initial commit: Simple Sensor firmware for Heltec T114 with BME280

- MeshCore-based Simple Sensor firmware
- Heltec T114 without display
- BME280 sensor support (temp/humidity/pressure)
- Radio: 868.856018 MHz, SF7, BW62.5 kHz, CR4/7
- 2-byte path hash
- PlatformIO project

examples/companion_radio/main.cpp

@@ -0,0 +1,232 @@
+#include <Arduino.h>   // needed for PlatformIO
+#include <Mesh.h>
+#include "MyMesh.h"
+
+// Believe it or not, this std C function is busted on some platforms!
+static uint32_t _atoi(const char* sp) {
+  uint32_t n = 0;
+  while (*sp && *sp >= '0' && *sp <= '9') {
+    n *= 10;
+    n += (*sp++ - '0');
+  }
+  return n;
+}
+
+#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
+  #include <InternalFileSystem.h>
+  #if defined(QSPIFLASH)
+    #include <CustomLFS_QSPIFlash.h>
+    DataStore store(InternalFS, QSPIFlash, rtc_clock);
+  #else
+  #if defined(EXTRAFS)
+    #include <CustomLFS.h>
+    CustomLFS ExtraFS(0xD4000, 0x19000, 128);
+    DataStore store(InternalFS, ExtraFS, rtc_clock);
+  #else
+    DataStore store(InternalFS, rtc_clock);
+  #endif
+  #endif
+#elif defined(RP2040_PLATFORM)
+  #include <LittleFS.h>
+  DataStore store(LittleFS, rtc_clock);
+#elif defined(ESP32)
+  #include <SPIFFS.h>
+  DataStore store(SPIFFS, rtc_clock);
+#endif
+
+#ifdef ESP32
+  #ifdef WIFI_SSID
+    #include <helpers/esp32/SerialWifiInterface.h>
+    SerialWifiInterface serial_interface;
+    #ifndef TCP_PORT
+      #define TCP_PORT 5000
+    #endif
+  #elif defined(BLE_PIN_CODE)
+    #include <helpers/esp32/SerialBLEInterface.h>
+    SerialBLEInterface serial_interface;
+  #elif defined(SERIAL_RX)
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+    HardwareSerial companion_serial(1);
+  #else
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+  #endif
+#elif defined(RP2040_PLATFORM)
+  //#ifdef WIFI_SSID
+  //  #include <helpers/rp2040/SerialWifiInterface.h>
+  //  SerialWifiInterface serial_interface;
+  //  #ifndef TCP_PORT
+  //    #define TCP_PORT 5000
+  //  #endif
+  // #elif defined(BLE_PIN_CODE)
+  //   #include <helpers/rp2040/SerialBLEInterface.h>
+  //   SerialBLEInterface serial_interface;
+  #if defined(SERIAL_RX)
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+    HardwareSerial companion_serial(1);
+  #else
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+  #endif
+#elif defined(NRF52_PLATFORM)
+  #ifdef BLE_PIN_CODE
+    #include <helpers/nrf52/SerialBLEInterface.h>
+    SerialBLEInterface serial_interface;
+  #else
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+  #endif
+#elif defined(STM32_PLATFORM)
+  #include <helpers/ArduinoSerialInterface.h>
+  ArduinoSerialInterface serial_interface;
+#else
+  #error "need to define a serial interface"
+#endif
+
+/* GLOBAL OBJECTS */
+#ifdef DISPLAY_CLASS
+  #include "UITask.h"
+  UITask ui_task(&board, &serial_interface);
+#endif
+
+StdRNG fast_rng;
+SimpleMeshTables tables;
+MyMesh the_mesh(radio_driver, fast_rng, rtc_clock, tables, store
+   #ifdef DISPLAY_CLASS
+      , &ui_task
+   #endif
+);
+
+/* END GLOBAL OBJECTS */
+
+void halt() {
+  while (1) ;
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  board.begin();
+
+#ifdef DISPLAY_CLASS
+  DisplayDriver* disp = NULL;
+  if (display.begin()) {
+    disp = &display;
+    disp->startFrame();
+  #ifdef ST7789
+    disp->setTextSize(2);
+  #endif
+    disp->drawTextCentered(disp->width() / 2, 28, "Loading...");
+    disp->endFrame();
+  }
+#endif
+
+  if (!radio_init()) { halt(); }
+
+  fast_rng.begin(radio_get_rng_seed());
+
+#if defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
+  InternalFS.begin();
+  #if defined(QSPIFLASH)
+    if (!QSPIFlash.begin()) {
+      // debug output might not be available at this point, might be too early. maybe should fall back to InternalFS here?
+      MESH_DEBUG_PRINTLN("CustomLFS_QSPIFlash: failed to initialize");
+    } else {
+      MESH_DEBUG_PRINTLN("CustomLFS_QSPIFlash: initialized successfully");
+    }
+  #else
+  #if defined(EXTRAFS)
+      ExtraFS.begin();
+  #endif
+  #endif
+  store.begin();
+  the_mesh.begin(
+    #ifdef DISPLAY_CLASS
+        disp != NULL
+    #else
+        false
+    #endif
+  );
+
+#ifdef BLE_PIN_CODE
+  serial_interface.begin(BLE_NAME_PREFIX, the_mesh.getNodePrefs()->node_name, the_mesh.getBLEPin());
+#else
+  serial_interface.begin(Serial);
+#endif
+  the_mesh.startInterface(serial_interface);
+#elif defined(RP2040_PLATFORM)
+  LittleFS.begin();
+  store.begin();
+  the_mesh.begin(
+    #ifdef DISPLAY_CLASS
+        disp != NULL
+    #else
+        false
+    #endif
+  );
+
+  //#ifdef WIFI_SSID
+  //  WiFi.begin(WIFI_SSID, WIFI_PWD);
+  //  serial_interface.begin(TCP_PORT);
+  // #elif defined(BLE_PIN_CODE)
+  //   char dev_name[32+16];
+  //   sprintf(dev_name, "%s%s", BLE_NAME_PREFIX, the_mesh.getNodeName());
+  //   serial_interface.begin(dev_name, the_mesh.getBLEPin());
+  #if defined(SERIAL_RX)
+    companion_serial.setPins(SERIAL_RX, SERIAL_TX);
+    companion_serial.begin(115200);
+    serial_interface.begin(companion_serial);
+  #else
+    serial_interface.begin(Serial);
+  #endif
+    the_mesh.startInterface(serial_interface);
+#elif defined(ESP32)
+  SPIFFS.begin(true);
+  store.begin();
+  the_mesh.begin(
+    #ifdef DISPLAY_CLASS
+        disp != NULL
+    #else
+        false
+    #endif
+  );
+
+#ifdef WIFI_SSID
+  board.setInhibitSleep(true);   // prevent sleep when WiFi is active
+  WiFi.begin(WIFI_SSID, WIFI_PWD);
+  serial_interface.begin(TCP_PORT);
+#elif defined(BLE_PIN_CODE)
+  serial_interface.begin(BLE_NAME_PREFIX, the_mesh.getNodePrefs()->node_name, the_mesh.getBLEPin());
+#elif defined(SERIAL_RX)
+  companion_serial.setPins(SERIAL_RX, SERIAL_TX);
+  companion_serial.begin(115200);
+  serial_interface.begin(companion_serial);
+#else
+  serial_interface.begin(Serial);
+#endif
+  the_mesh.startInterface(serial_interface);
+#else
+  #error "need to define filesystem"
+#endif
+
+  sensors.begin();
+
+#if ENV_INCLUDE_GPS == 1
+  the_mesh.applyGpsPrefs();
+#endif
+
+#ifdef DISPLAY_CLASS
+  ui_task.begin(disp, &sensors, the_mesh.getNodePrefs());  // still want to pass this in as dependency, as prefs might be moved
+#endif
+}
+
+void loop() {
+  the_mesh.loop();
+  sensors.loop();
+#ifdef DISPLAY_CLASS
+  ui_task.loop();
+#endif
+  rtc_clock.tick();
+}