Tutorial for an easy DIY 5-Min. timer-switch set to emit a sound.?
I am trying to make a few game-types for my friends and I to play in airsoft, and one is a variation of the classic FPS game-type called Assault. I am wondering if there is a tutorial for beginners that explains how to create a DIY Timer Switch that will emit an explosion sound 5 minutes after it is set. I want to make a false bomb for us to use, but I am unsure about how to do that.