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/lilygo_tdeck/TDeckBoard.cpp

@@ -0,0 +1,35 @@
+#include <Arduino.h>
+#include "TDeckBoard.h"
+
+uint32_t deviceOnline = 0x00;
+
+void TDeckBoard::begin() {
+  
+  ESP32Board::begin();
+  
+  // Enable peripheral power
+  pinMode(PIN_PERF_POWERON, OUTPUT);
+  digitalWrite(PIN_PERF_POWERON, HIGH);
+
+  // Configure user button
+  pinMode(PIN_USER_BTN, INPUT);
+
+  // Configure LoRa Pins
+  pinMode(P_LORA_MISO, INPUT_PULLUP);
+  // pinMode(P_LORA_DIO_1, INPUT_PULLUP);
+
+  #ifdef P_LORA_TX_LED
+    digitalWrite(P_LORA_TX_LED, HIGH); // inverted pin for SX1276 - HIGH for off
+  #endif
+
+  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)) {
+      startup_reason = BD_STARTUP_RX_PACKET; // received a LoRa packet (while in deep sleep)
+    }
+
+    rtc_gpio_hold_dis((gpio_num_t)P_LORA_NSS);
+    rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1);
+  }
+}