https://www.instructables.com/Arduino-88-Led-Matrix-Driver-With-2-74HC595-Shift-/
Arduino 8*8 Led Matrix Driver With 2* 74HC595 Shift Registers : 5 Steps - Instructables
Arduino 8*8 Led Matrix Driver With 2* 74HC595 Shift Registers: I bought a 8x8 Led Matrix including a driver board with a MAX7219CNG chip. Unfortunately this...
led matrix driver