I have a little stand-a-lone prop that is just a animated set of bears clapping bells together to make a song. I have figured out a basic circuit which when triggered, will play the bears for 20 seconds.
My question, has anybody figured out a way so when money is dropped past a sensor, would activated something? My donation box is an 4" pvc pipe that looks like a Candy Cane that people drop money down. The sensor would need to be good for coin or paper, so I am guessing a micro switch is out. Needs to me a sort of Photo eye, just not sure on type and ciruit to make it work. Any Sugguestions? The circuit that activates the bears is a simple 555 timer with delay.
Attached is a shot of the 3" cane I built last year, is getting up graded to 4" this yr due to much money getting stuck in tube.