thanks I'll add the led then, I would bet those IC are for driving the LEDs, I'm curious too, do you have any links to your project ??
I haven't posted anything about it, I was thinking about starting a thread, in general, maybe I'll do that when I get some time, rather than clogging up this thread
Your PCB look so fantastic. Can u share your work? I want to know what is 3 ics (they are the same, right?) on your PCB
Those are 74hc138 3-8 decoder/demux, I was trying to keep the controller small and narrow using an atmega32u2, but I needed more pins.