Not wanting to re-invent the wheel, does anyone know who sells an LED Matrix backpack that's made for common anode? Sparkf\Fun has one, but it's common cathode.
http://evilmadscience.com/ sells Meggy RGB Jr, which has common anode RGB matrix. I don't know if you consider that a "backpack" though.
No, not quite. I just need the backpack, as I already own the matrices ...