Electronics babble. MIDI Lightboard explanation and close-ups.

Partly a test video using my "new" 2012 Canon HF M56 camera. No need to use my 640x480 Ixus 80 anymore :)
Sorry for the uuhhm's. I'm not used to improvising and talking in front of a camera. I just wanted to post a video where explain a bit more what the MIDI Lightboard can do and the basic design.
The schematic and PCB layout is done by me. Board was manufactured by OSH Park.