         break;
       case T_MINUTE:
         setTime(hour(), getNextMinSecFromCurrentMinSec(minute(), false), second(), day(), month(), year());
+        break;
+      case T_VOLTAGE:
+        showVoltage = !showVoltage;
         break;
       default: 
         break;




    writeVoltageAndTempToDisplayBuffer(batteryMilliVolt, celsius);
    writeButtonStateToDisplayBuffer(blinkOn);



volatile CLOCK_STATE currentState = NORMAL;

typedef enum {
  T_HOUR, T_MINUTE, T_VOLTAGE} 
SETTING_TIME_STATE ;
SETTING_TIME_STATE settingTimeProcess;

