Hey guys,
I'm looking to build a project that I saw on YouTube for controlling LEDs with the use of a sound impact sensor. A Parallax brand to be specific. Download - Parallax
The circuitry seems pretty simple but I was confused when it came to the potentiometer? Is it after or before the mic or is it used to set the op-amp gain or after the op-amp output? Or do I have it all wrong?
I'd buy the sensor if I didn't have to wait for shipping but I think I might be able to make it out of parts at the Shack.
Thanks!
Rob