Digital alarm clock

Other Hardware General Electronics
12

As mentioned in post #9, "If the serial monitor showed nothing, you also have a problem with the code."

  • Check your buzzer's functionality by writing a very simple, couple line sketch.

  • To more easily chase your problem, change this line of code to one item:
    if(TimeHours10s == AlarmHours10s && TimeHours1s == AlarmHours1s && TimeMinutes10s == AlarmMinutes10s && TimeMinutes1s == AlarmMinutes1s )

  • To prove variables are what they should be, you can add some diagnostic lines of code at strategic locations, Serial.println(AlarmMinutes1s); .