LED based VU meter schematic.

I've recently bought a new pair of headphones, and would like to add a semicircle of LEDs (Green->Yellow->Red) to each can, LEDs that would light to the music playing through headphones. As a result, I've been looking for a VU meter schematic that incorporates LEDs and a 1/8" jack. Any link to such a schematic or ideas for my potential project would be greatly appreciated!

dmfunk (author) 10 years ago
Thanks, this looks promising!
trialex10 years ago
I guess you'd want to go for a LM3194 or LM3915 based circuit to keep everything small... otherwise the parts count for a resistor/transistor based circuit would make it hard to fit in a small space...

Heres a relevant instructable...

https://www.instructables.com/id/E0K3YAYGI1EP4HD4U4/?ALLSTEPS