Stopwatch mode Activated by pressing S key followed by E key, motor will spin the handle (in my case wire I tied around the shaft) until X is pressed. If F is pressed after motor is stopped builtin ...

Stopwatch: The time is continuously updated using millis(), and the buttons enable control for starting, pausing, and resetting the stopwatch. Timer: The user inputs values for minutes and seconds, ...

[ZHut] managed to bring these two worlds together by presenting how to make an Arduino blink an LED in conjunction with a 555 timer. We know, we know. It is hard to decide how to comment about this.