Eventually he came across the IS32FL3738 6×8 Dot Matrix LED Driver IC from ISSI which hit all the right bases. Three of these would be enough to control the 100-LED panel; it offered I2C control ...

Display your favourite NFL team score on an raspberry pi powered LED matrix. Currently supports 64x32 boards only. Hey, neat-o! You can rotate through multiple games now if you want to! Will still ...