unsigned long lastPwrCheck_millis = 0;
boolean powerOut = false;

void checkPowerGood() {
  //if ((millis() - lastPwrCheck_millis) >= 1000) {
  //  Serial.println(analogRead(A3));
  //  lastPwrCheck_millis=millis();
  //}
  if (powerGoodMinValue > 0) {
    if (!powerOut && analogRead(PIN_IN_ADC_PWRGOOD) < powerGoodMinValue) {
      powerOut = true;
      saveAllCurrentData(false);
      Serial.println("POWER IS GOING DOWN...");
      //doHardreset();
    }
    else if (powerOut && analogRead(PIN_IN_ADC_PWRGOOD) > (powerGoodMinValue + 20)) {
      powerOut = false;
      Serial.println("POWER RESTORED...");
    }
  }

}

void printPowerValue() {
  Serial.print(F("POWER: pwrCurr="));
  Serial.print(analogRead(PIN_IN_ADC_PWRGOOD));
  Serial.print(F(", pwrGood="));
  Serial.print(powerGoodMinValue);
  Serial.println();
}