PrimeRobotics MAX7219 Dot Matrix Module Educational Electronic Hobby Kit

Wiring instructions: 1 on the left block to an input port, the an output port on the right. 2 the When the control of a single module, simple enter the port received a CPU The When wining 3 modules cascaded output input termination CPU, the input output termination module of the first two modules of the first one, the first two modules of the termination input terminal of the three modules, and so. The To 51 single example: VCC 5 v GND GND DIN P2.2 CS P2.1 CLK P2.0