My computer science teacher and I are trying to make and program an led matrix, (possibly like 5 X 5 or a little bigger). We started off with a scrolling 1 X 5 led matrix, but that the letters were pretty difficult to read and it was too simple, so we moved on to a srolling 2 X 5 matrix. However, that was still pretty dificult to read and didn't look great either. Neither of us have much experience with the hardware for excedding the maximum number of output pins. We are basically at somewhat of a standstill with this project until we can either learn how to access or add more outputs, which I