Hi, this is my first post on this forum ..
i'm designing a 64 pots controller thats made from atmega328 and four 4067 multiplexers. The design is fairly simple, atmega will be populated with arduino code and output simple cc midi data thru serial midi. I've added leds for every potentiometer to show values via brightness.
I have to add that i'm not an educated electronician
so if you could point out some mistakes, things that could be done better .. i would appreciate it very much.
I've attached my schematics and board layout.