Hacked Gadgets Forum

October 10, 2009

Hidden Sound Trigger

at 2:44 pm. Filed under DIY Hacks, Electronic Hacks


Bumblebeepee from the Hacked Gadgets Forum entered the Halloween Project Contest with this cool Hidden Sound Trigger contraption. He used an infrared beam to detect when someone enters the target area, the buzzer output of the beam module presses play on an mp3 player which is amplified to drive some speakers and scare someone. This year he is working with the same module to play some music and light up a pumpkin when someone walks up. Halloween is sure to be a fun time in that yard!