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LM3915/LM3916 VU Meter

Step 3Pass through for sound

Pass through for sound
I wanted to be able to listen to the music while looking at the flashing lights, novel idea I know...

So I wired up two 1/8" stereo jacks wire the two together, and then hang 3 wires off of one, the negative will go to pin 4 on both chips, while the left signal will go to pin 5 on one chip, and pin5 on the other chip.

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1 comment
May 13, 2009. 2:56 PMcoletrain says:
could u not hook up a microphone to the input?

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Author:joe
I like to tinker with just about anything, sometimes it works out in the end. Have fun looking at the projects, try tearing something open and let me know how it goes. cheers, -Joe