After reading this post, I had an idea! Wish I had the time to create a FAQ post. One post with the questions followed by the answer or a set of links to related posts. Or even a link to the results of a search (kinda like lmgt4u). Some candidates are: Chicken Coop door Reversing linear actuator Controlling motor from microprocessor Controlling LED from microprocessor (or) Using transistor as a switch Toggling power with a momentary switch Simplifying Boolean logic "Urgently need Help" (and the related) HELP Project due tomorrow Taking nominations for others.