 
   
   
+}
+
+int getMVOfBattery(int ADCReading){
+  return ((float) ADCReading / ADC_PRECISION) * 2 * VOLTAGE_OF_VCC_MV;
 }
 
 void playTune(){

  int setPinState = digitalRead(BUTTON_SET_PIN);
  int adjustPinState = digitalRead(BUTTON_ADJUST_PIN);
  int lcdOffPinState = digitalRead(LCD_OFF_PIN);
  
  //Press both to play tune
  if(setPinState == HIGH && adjustPinState == HIGH){

#define RXLED 17
#define OLED_RESET A0

#define ADC_PRECISION 1024
#define VOLTAGE_MEASURE_PIN A1
#define VOLTAGE_OF_VCC_MV 3310

RTC_DS1307 RTC;
Adafruit_SSD1306 display(OLED_RESET);

