M key - minute button S key - second button space key - start/stop button C key - clear button (it should have an x on it) This timer has these features: - segment displays - stopwatch & timer mode - memory (shows your time when you last set it) - clear button so PC people can clear the timer with no problem - easy-to-read text on buttons - large displays (so people can easily read it) Please consider remixing it, as you can study how it works, and also create variants of this timer in any way you want! -^_^- Also, this timer is especially designed to make the look of an actual digital kitchen timer, like those ones that are selling on Amazon. ^_^ Also, are you worried that the clones might break after going past 99 minutes and 59 seconds? Don't worry! I've put a protection around that, so it goes from 99 minutes to 0 minutes. Instructions: press minute or second button to change minute or second duration press start/stop to start or stop either stopwatch or timer mode press the clear button (at the very bottom) to clear the time shown, and also stop any actions that the timer is doing