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Build Like A Pyro!
Find many of the parts used on this site at our favorite online electronics shop
Take Me To The Gadgetory!
Sound Activated Flash Trigger for High Speed Photography

Posted December 15, 2013 by Chris

"The circuit works great for dropping coins, marbles, fruits and the like into a glass of water, but the microphone pre-amplifier is just not sensitive enough to detect a single drop of water falling from a height, unless you hold the microphone really close. Am still working on a more sensitive version that should be able to do that."

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