> The way they are designed is they have a push button on the end that > starts the timing. The plan is to have a count down (3,2,1,go) with a > person on each clock to push the button on "go". I am obviously missing something here. Is it an AND gate - that all=20 three buttons have to be pressed before the three clocks start or does=20 each clock start when its pusher reacts to the "go"? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .