ATmega16 and MAX7219 8 x 8 matrix shedboy71 January 15, 2015 megaAVR No Comments This is a picture of the 8 x 8 LED matrix display I used which I connected to my ATmega16 Here are the connections CS -> PORTD 2 DIN -> PORTD 1 CLK -> PORTD 0 Schematic Read More