I'm new to the design thing. and we are building a bunch of bomb prop's for a play.
I'm trying to find the cheapest and simplest way to make a 9vdc source pulses, once a second.
Will be activating a red LED and a pizeo. I could also use a hand finding the best piezo that give's a nice beep.
9vdc is needed as other item's will also be using 9vdc in the prop. and I need to build 10 of them.
Thank You!
