#include <Arduino.h>

ADC_MODE(ADC_VCC);

const float MinimalSpannung = 2.85;
float korectur = 9.2800899887514060742407199100112e-4;
char floatString[15] = {0};
float AKKU;

float getBattery()
{
  #if (NOBATT == 1)
    Serial.print("Batterie:\t\t    3.05 V\n");
    return 3.05;
  #endif
  int Vcc = ESP.getVcc();
  float VCC = Vcc * korectur ;
  Serial.printf("Rohdaten: %d, ", Vcc);
  dtostrf(VCC,7,2,floatString);
  Serial.printf("Vcc: %s V\n", floatString);
  return VCC;
}