Add MeshCore relay_radio firmware for Heltec T114

variants/thinknode_m5/ThinknodeM5Board.cpp

@@ -0,0 +1,47 @@
+#include "ThinknodeM5Board.h"
+
+PCA9557 expander (0x18, &Wire1);
+
+void ThinknodeM5Board::begin() {
+    // Start expander and configure pins
+    Wire1.begin(48, 47);
+    expander.pinMode(EXP_PIN_POWER, OUTPUT); // eink
+    expander.pinMode(EXP_PIN_BACKLIGHT, OUTPUT); // peripherals
+    expander.pinMode(EXP_PIN_LED, OUTPUT); // peripherals
+    expander.digitalWrite(EXP_PIN_POWER, HIGH);
+    expander.digitalWrite(EXP_PIN_BACKLIGHT, LOW);
+    expander.digitalWrite(EXP_PIN_LED, LOW);
+
+#ifdef PIN_GPS_SWITCH
+    pinMode(PIN_GPS_SWITCH, INPUT);
+#endif
+
+    ESP32Board::begin();
+  }
+
+  void ThinknodeM5Board::enterDeepSleep(uint32_t secs, int pin_wake_btn) {
+    esp_deep_sleep_start();
+  }
+
+  void ThinknodeM5Board::powerOff()  {
+    enterDeepSleep(0);
+  }
+
+ uint16_t ThinknodeM5Board::getBattMilliVolts() {
+    analogReadResolution(12);
+    analogSetPinAttenuation(PIN_VBAT_READ, ADC_11db);
+
+    uint32_t mv = 0;
+      for (int i = 0; i < 8; ++i) {
+        mv += analogReadMilliVolts(PIN_VBAT_READ);
+        delayMicroseconds(200);
+      }
+    mv /= 8;
+
+    analogReadResolution(10);  
+    return static_cast<uint16_t>(mv * ADC_MULTIPLIER );
+}
+
+  const char* ThinknodeM5Board::getManufacturerName() const {
+    return "Elecrow ThinkNode M5";
+  }