Hi all!
Today I received the parts to create a led matrix using the Arduino LedMatrix tutorial (sorry, can't post a link because I'm a new member). But I don't get the max7219 to work correctly. I wired it as described in the tutorial. But I can only light all or none of the 4 LED's. When I place "maxSingle(1,1);" in the loop, all LED's are lit and when I use "maxSingle(1,0);" or nothing, no LED's are lit.
Is this a common problem or do you need more information to be able to help me? If yes, please tell me what you need to know.
Thanks in advance,
Joris