MAX7219 Dot Matrix Display Module SingleChip Control LED Module DIY Kitfor Arduino with 5pin Line

Module Parameters: 1 single module can drive a common cathode 8 * 8 dot matrix 2 module Operating voltage : 5V 3 Module size : 5 cm X 3.2 cm wide X 1.5 cm high 4 holes with four screws , diameter 3mm, can be fixed by using our M3 studs 5 modules with input and output interfaces , support for cascading multiple modules Wiring: 1 is a block left input port, an output port on the right . 2 When control of a single module , simply input port receiving CPU When cascading multiple modules 3 , output and input termination CPU, the input output termination module of the first two modules of the first one , the first two modules of terminating the input of the first three modules , and so on . .. To 51 single Example: VCC 5V GND GND DIN P22 CS P21 CLK P20