Well, i know there are a lot of threads talking about this, so im not going to make it long and boring to red.
Im trying to interface the sparkfun matrix with the arduino, i know i need one MAX7219 for each color and that stuff, my question goes like this:
In the datasheet of the matrix[ur]http://www.sparkfun.com/datasheets/Components/SanYoung-Medium-RG.pdf[/url] we find this:
But actually, the matrix has 2 rows of 12 pins, so i cannot state wich pin is wich, maybe this is a stupid question, but sorry, i cannot find out wich pin is 1, wich one is 20..
Can you help me out with a quick answer , thanks.