MAX7219 MODULE MATRICE LED 8*8MAX7219 Dot Led Matrix Module with cable Details: MAX7219 is an integrated serial input output common cathode display drivers , which connects the microprocessor 7 segment digital LED display with 8 digits , bar graph can also be connected monitor or 64 separate LED. On type B BCD encoder includes an on chip , multi channel scanning loop , segment word drive, but also a 8x8 static RAM for storing each data . Only one external register is used to set