Hi all, after several years, I decided to use again my Arduino 2009 (yeah, it's still working). I am working on a music visualizer (reading music from 3,5 jack and make led strip lighting accordingly). I found this project that seems to be perfect for me, but I really don't understand how to conn…

Help understanding schematic for music visualizer

anon73444976 September 22, 2021, 5:46pm 3

...and there are jack-plugs.

Confusing, innit?