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

variants/station_g2/StationG2Board.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <Arduino.h>
+#include <helpers/ESP32Board.h>
+#include <driver/rtc_io.h>
+
+class StationG2Board : public ESP32Board {
+public:
+  void begin() {
+    ESP32Board::begin();
+
+    esp_reset_reason_t reason = esp_reset_reason();
+    if (reason == ESP_RST_DEEPSLEEP) {
+      long wakeup_source = esp_sleep_get_ext1_wakeup_status();
+      if (wakeup_source & (1 << P_LORA_DIO_1)) {  // received a LoRa packet (while in deep sleep)
+        startup_reason = BD_STARTUP_RX_PACKET;
+      }
+
+      rtc_gpio_hold_dis((gpio_num_t)P_LORA_NSS);
+      rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1);
+    }
+  }
+
+  void enterDeepSleep(uint32_t secs, int pin_wake_btn = -1) {
+    esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
+
+    // Make sure the DIO1 and NSS GPIOs are hold on required levels during deep sleep
+    rtc_gpio_set_direction((gpio_num_t)P_LORA_DIO_1, RTC_GPIO_MODE_INPUT_ONLY);
+    rtc_gpio_pulldown_en((gpio_num_t)P_LORA_DIO_1);
+
+    rtc_gpio_hold_en((gpio_num_t)P_LORA_NSS);
+
+    if (pin_wake_btn < 0) {
+      esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1), ESP_EXT1_WAKEUP_ANY_HIGH);  // wake up on: recv LoRa packet
+    } else {
+      esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1) | (1L << pin_wake_btn), ESP_EXT1_WAKEUP_ANY_HIGH);  // wake up on: recv LoRa packet OR wake btn
+    }
+
+    if (secs > 0) {
+      esp_sleep_enable_timer_wakeup(secs * 1000000);
+    }
+
+    // Finally set ESP32 into sleep
+    esp_deep_sleep_start();   // CPU halts here and never returns!
+  }
+
+  uint16_t getBattMilliVolts() override {
+    return 0;
+  }
+
+  const char* getManufacturerName() const override {
+    return "Station G2";
+  }
+};

variants/station_g2/platformio.ini

@@ -0,0 +1,240 @@
+[Station_G2]
+extends = esp32_base
+board = station-g2
+build_flags =
+  ${esp32_base.build_flags}
+  ${sensor_base.build_flags}
+  -I variants/station_g2
+  -I src/helpers/ui
+  -D STATION_G2
+  -D USE_SX1262
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D P_LORA_DIO_1=48
+  -D P_LORA_NSS=11
+  -D P_LORA_RESET=21
+  -D P_LORA_BUSY=47
+  -D P_LORA_SCLK=12
+  -D P_LORA_MISO=14
+  -D P_LORA_MOSI=13
+  -D LORA_TX_POWER=7 ; configured as 7dbm, because the final output will be ~27dbm (~0.5w) if the PA is enabled.
+  -D MAX_LORA_TX_POWER=19 ; max output without burning out the PA
+;  -D P_LORA_TX_LED=35
+  -D PIN_BOARD_SDA=5
+  -D PIN_BOARD_SCL=6
+  -D PIN_USER_BTN=38
+  -D PIN_GPS_RX=15
+  -D PIN_GPS_TX=7
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=140
+  -D SX126X_RX_BOOSTED_GAIN=0 ; Default value when 'radio.rxgain' has not been set. Must be OFF for the Station G2, see:
+;  https://wiki.uniteng.com/en/meshtastic/station-g2#impact-of-lora-node-dense-areashigh-noise-environments-on-rf-performance
+  -D DISPLAY_CLASS=SH1106Display
+build_src_filter = ${esp32_base.build_src_filter}
+  +<../variants/station_g2>
+  +<helpers/sensors>
+  +<helpers/ui/SH1106Display.cpp>
+  +<helpers/ui/MomentaryButton.cpp>
+lib_deps =
+  ${esp32_base.lib_deps}
+  ${sensor_base.lib_deps}
+  adafruit/Adafruit SH110X @ ~2.1.13
+  adafruit/Adafruit GFX Library @ ^1.12.1
+
+[env:Station_G2_repeater]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -D ADVERT_NAME='"Station G2 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 = ${Station_G2.build_src_filter}
+  +<../examples/simple_repeater>
+lib_deps =
+  ${Station_G2.lib_deps}
+  ${esp32_ota.lib_deps}
+
+; [env:Station_G2_repeater_bridge_rs232]
+; extends = Station_G2
+; build_flags =
+;   ${Station_G2.build_flags}
+;   -D ADVERT_NAME='"RS232 Bridge"'
+;   -D ADVERT_LAT=0.0
+;   -D ADVERT_LON=0.0
+;   -D ADMIN_PASSWORD='"password"'
+;   -D MAX_NEIGHBOURS=50
+;   -D WITH_RS232_BRIDGE=Serial2
+;   -D WITH_RS232_BRIDGE_RX=5
+;   -D WITH_RS232_BRIDGE_TX=6
+;  -D BRIDGE_DEBUG=1
+; ;  -D MESH_PACKET_LOGGING=1
+; ;  -D MESH_DEBUG=1
+; build_src_filter = ${Station_G2.build_src_filter}
+;   +<helpers/bridges/RS232Bridge.cpp>
+;   +<../examples/simple_repeater>
+; lib_deps =
+;   ${Station_G2.lib_deps}
+;   ${esp32_ota.lib_deps}
+
+[env:Station_G2_repeater_bridge_espnow]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -D ADVERT_NAME='"ESPNow Bridge"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=50
+  -D WITH_ESPNOW_BRIDGE=1
+;  -D BRIDGE_DEBUG=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<helpers/bridges/ESPNowBridge.cpp>
+  +<../examples/simple_repeater>
+lib_deps =
+  ${Station_G2.lib_deps}
+  ${esp32_ota.lib_deps}
+
+[env:Station_G2_logging_repeater]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -D ADVERT_NAME='"Station G2 Logging 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 SX126X_RX_BOOSTED_GAIN=1
+;  https://wiki.uniteng.com/en/meshtastic/station-g2#impact-of-lora-node-dense-areashigh-noise-environments-on-rf-performance
+;  -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<../examples/simple_repeater>
+lib_deps =
+  ${Station_G2.lib_deps}
+  ${esp32_ota.lib_deps}
+
+; [env:Station_G2_logging_repeater_bridge_rs232]
+; extends = Station_G2
+; build_flags =
+;   ${Station_G2.build_flags}
+;   -D ADVERT_NAME='"RS232 Bridge"'
+;   -D ADVERT_LAT=0.0
+;   -D ADVERT_LON=0.0
+;   -D ADMIN_PASSWORD='"password"'
+;   -D MAX_NEIGHBOURS=50
+;   -D MESH_PACKET_LOGGING=1
+;   -D SX126X_RX_BOOSTED_GAIN=1
+;   -D WITH_RS232_BRIDGE=Serial2
+;   -D WITH_RS232_BRIDGE_RX=5
+;   -D WITH_RS232_BRIDGE_TX=6
+;  -D BRIDGE_DEBUG=1
+; ;  -D MESH_DEBUG=1
+; build_src_filter = ${Station_G2.build_src_filter}
+;   +<helpers/bridges/RS232Bridge.cpp>
+;   +<../examples/simple_repeater>
+; lib_deps =
+;   ${Station_G2.lib_deps}
+;   ${esp32_ota.lib_deps}
+
+[env:Station_G2_logging_repeater_bridge_espnow]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -D ADVERT_NAME='"ESPNow Bridge"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=50
+  -D MESH_PACKET_LOGGING=1
+  -D SX126X_RX_BOOSTED_GAIN=1
+  -D WITH_ESPNOW_BRIDGE=1
+;  -D BRIDGE_DEBUG=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<helpers/bridges/ESPNowBridge.cpp>
+  +<../examples/simple_repeater>
+lib_deps =
+  ${Station_G2.lib_deps}
+  ${esp32_ota.lib_deps}
+
+[env:Station_G2_room_server]
+extends = Station_G2
+build_src_filter = ${Station_G2.build_src_filter}
+  +<../examples/simple_room_server>
+build_flags =
+  ${Station_G2.build_flags}
+  -D ADVERT_NAME='"Station G2 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
+lib_deps =
+  ${Station_G2.lib_deps}
+  ${esp32_ota.lib_deps}
+
+[env:Station_G2_companion_radio_usb]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -I examples/companion_radio/ui-new
+  -D MAX_CONTACTS=350
+  -D MAX_GROUP_CHANNELS=40
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<helpers/esp32/*.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-new/*.cpp>
+lib_deps =
+  ${Station_G2.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Station_G2_companion_radio_ble]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -I examples/companion_radio/ui-new
+  -D MAX_CONTACTS=350
+  -D MAX_GROUP_CHANNELS=40
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+  -D OFFLINE_QUEUE_SIZE=256
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<helpers/esp32/*.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-new/*.cpp>
+lib_deps =
+  ${Station_G2.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Station_G2_companion_radio_wifi]
+extends = Station_G2
+build_flags =
+  ${Station_G2.build_flags}
+  -I examples/companion_radio/ui-new
+  -D MAX_CONTACTS=350
+  -D MAX_GROUP_CHANNELS=40
+  -D WIFI_DEBUG_LOGGING=1
+  -D WIFI_SSID='"myssid"'
+  -D WIFI_PWD='"mypwd"'
+  -D OFFLINE_QUEUE_SIZE=256  
+; -D MESH_PACKET_LOGGING=1
+; -D MESH_DEBUG=1
+build_src_filter = ${Station_G2.build_src_filter}
+  +<helpers/esp32/*.cpp>
+  +<../examples/companion_radio/*.cpp>
+  +<../examples/companion_radio/ui-new/*.cpp>
+lib_deps =
+  ${Station_G2.lib_deps}
+  densaugeo/base64 @ ~1.4.0

variants/station_g2/target.cpp

@@ -0,0 +1,62 @@
+#include <Arduino.h>
+#include "target.h"
+
+StationG2Board board;
+
+#if defined(P_LORA_SCLK)
+  static SPIClass spi;
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
+#else
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
+#endif
+
+WRAPPER_CLASS radio_driver(radio, board);
+
+ESP32RTCClock fallback_clock;
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+
+#if ENV_INCLUDE_GPS
+  #include <helpers/sensors/MicroNMEALocationProvider.h>
+  MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock);
+  EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea);
+#else
+  EnvironmentSensorManager sensors;
+#endif
+
+#ifdef DISPLAY_CLASS
+  DISPLAY_CLASS display;
+  MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
+#endif
+
+bool radio_init() {
+  fallback_clock.begin();
+  rtc_clock.begin(Wire);
+
+#if defined(P_LORA_SCLK)
+  spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
+  return radio.std_init(&spi);
+#else
+  return radio.std_init();
+#endif
+}
+
+uint32_t radio_get_rng_seed() {
+  return radio.random(0x7FFFFFFF);
+}
+
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
+  radio.setFrequency(freq);
+  radio.setSpreadingFactor(sf);
+  radio.setBandwidth(bw);
+  radio.setCodingRate(cr);
+}
+
+void radio_set_tx_power(int8_t dbm) {
+  radio.setOutputPower(dbm);
+}
+
+mesh::LocalIdentity radio_new_identity() {
+  RadioNoiseListener rng(radio);
+  return mesh::LocalIdentity(&rng);  // create new random identity
+}
+

variants/station_g2/target.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/radiolib/RadioLibWrappers.h>
+#include <StationG2Board.h>
+#include <helpers/radiolib/CustomSX1262Wrapper.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+#include <helpers/sensors/EnvironmentSensorManager.h>
+
+#ifdef DISPLAY_CLASS
+  #include <helpers/ui/SH1106Display.h>
+  #include <helpers/ui/MomentaryButton.h>
+#endif
+
+extern StationG2Board board;
+extern WRAPPER_CLASS radio_driver;
+extern AutoDiscoverRTCClock rtc_clock;
+extern EnvironmentSensorManager sensors;
+
+#ifdef DISPLAY_CLASS
+  extern DISPLAY_CLASS display;
+  extern MomentaryButton user_btn;
+#endif
+
+bool radio_init();
+uint32_t radio_get_rng_seed();
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
+void radio_set_tx_power(int8_t dbm);
+mesh::LocalIdentity radio_new_identity();
+