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sound activated leds

post #1 of 5
Thread Starter 
I didn't really know where to post this but I really wanted to share this here as its pretty cool. Anyways its basically just a lm386 amplifier and a npn transistor.


450

The video is of when I was testing it that is why it is on a different breadboard.


Edited by audiofreak95 - 1/24/12 at 5:53pm
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post #2 of 5
Fraud, waste, and abuse! Kidding, that's pretty damn cool man. thumb.gif

I assume the pots just determine how loud the sound needs to be to trigger?
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post #3 of 5
Thread Starter 
yea, one is for volume and one is gain and instead of having an 1/8th inch out I attached the output to the collector pin on the transistor.
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post #4 of 5
Man, that would be slick to have hooked up to some subs. Maybe mount inside the sub box, with only LED's showing. Harder they hit, brighter the lights.
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post #5 of 5
Thread Starter 
I was actually planning on doing that once I get a car but have three transistors hooked up to a three way crossover and flashing different color leds to a the according frequencies. and maybe even my computer case eventually.
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