MeshCore/variants/thinknode_m2/ThinknodeM2Board.cpp

#include "ThinknodeM2Board.h"

void ThinknodeM2Board::begin() {
  pinMode(PIN_VEXT_EN, OUTPUT);
  digitalWrite(PIN_VEXT_EN, !PIN_VEXT_EN_ACTIVE); // force power cycle
  delay(20);                                      // allow power rail to discharge
  digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE);  // turn backlight back on
  delay(120);                                     // give display time to bias on cold boot
  ESP32Board::begin();
  pinMode(PIN_STATUS_LED, OUTPUT); // init power led
}

uint16_t ThinknodeM2Board::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 *ThinknodeM2Board::getManufacturerName() const {
  return "Elecrow ThinkNode M2";
}