The MAX7219 IC is a serially interfaced 8 digit LED display driver. So it’s the ideal chip to drive an 8×8 led matrix. The MAX7219 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD Read more about MAX7219 IC, MAX7219CWG SO – Serially Interfaced, 8-Digit LED Display Drivers[…]