/Voltage - Functions to capture input, print on screen and store value//
//Voltage - Digit 1//
int GetVoltage1()
{
    int key = keypad.getKey();
    switch (key)
             {
                 case NO_KEY: break;
                 case '0': case '1': case '2': case '3': case '4': 
                         case '5': case '6': case '7': case '8': case '9':
                              {
                                   lcd.print(key);
                                   key = digit1;
                                   break;
                              }
                    case '*': 
                         {
                              voltage2();
                              break;
                         }
             }              
   return digit1;
}

//Voltage - Digit 2//
int GetVoltage2()
{
    int key = keypad.getKey();
    switch (key)
             {
                    case NO_KEY: break;
                    case '0': case '1': case '2': case '3': case '4': 
                         case '5': case '6': case '7': case '8': case '9':
                              {
                                   lcd.print(key);
                                   key = digit2;
                                   break;
                              }
                    case '*': 
                         {
                              voltage2();
                              break;
                         }
             }              
   }
   return digit2;
}

//Voltage - Digit 3//
int GetVoltage3()
{
    int key = keypad.getKey();
    switch (key)
             {
                    case NO_KEY: break;
                    case '0': case '1': case '2': case '3': case '4': 
                         case '5': case '6': case '7': case '8': case '9':
                              {
                                   lcd.print(key);
                                   key = digit3;
                                   break;
                              }
                    case '*': 
                         {
                              voltage2();
                              break;
                         }
             }              
   }
   return digit3;
}

//Voltage - Calculate Input//
int DutyCycle1 ()
{
    int input;
    input = (100*digit1)+(10*digit2)+(1*digit3);
    input = DutyCycle1;
    return DutyCycle1;
}