MAX7219 madness

Using Arduino LEDs and Multiplexing
3

I will upload the circuit, but i think it is mostly OK. (3 wires to MAX, and from that, wires to the LTC2727...)
It is possible that it is miswired, but i will check only tomorrow (and, miswired? for all the 4 digita? :slight_smile: and all segments are lighting? :S ). Sketch is uploaded from LedControl library's example, without changes (except pin definitions).

Schematic and PCB :


Link : http://kepz.atw.hu/1.png

http://kepz.atw.hu/2.png

I had to use lots of wires, due to small pcb size :frowning:
(It is a desk clock with a thermometer, very simple.)