Just acquired a Arduino for some tinkering, thought it would be a piece of cake after learning Assembly for the PIC family of micro-controllers (oh how I remember the memory errors =( ).
I’d worked through almost all of the (beginner) playground lessons and was looking forward to getting my hands dirty with some external hardware, namely two max72-22’s that I had planned on using to drive a 2 color (red/green & orange) 8x8 led matrix.
Using this lesson http://arduino.cc/playground/Main/MultiplexMAX72xx I hooked up the display and got some rudimentary animations going. I’d seen some other designs that used a one color led matrix, but the same principles couldn’t be applied because of the two max72-22’s that I was using, and the fact that I had to use SetLed (As per ledcontrol.h) instead of directly pushing out a matrix to the digital pins.
If anyone has an idea on how to get some multicolor text scrolling using the example linked above, it would be really nice.