SainSmart MAX7219 Dot Matrix Module 4 in one for Arduino

Wiring instructions:

1. The left side of the module to the input port, the right to an output port.
2. When the control of a single module, simply input port connected to CPU
3. When a plurality of cascaded modules, input and output termination CPU, an input terminal of the second output end of the first module a module, the first two modules of the input terminal of the three termination modules, and so on. ..
51 microcontrollers, for example:
VCC †' 5V
GND †' GND
DIN †' P2.2
CS †' P2.1
CLK †' P2.0

Package list:

1x SainSmart MAX7219 Dot Matrix Module 4-in-one
1x 20cm DuPont line 5P
　

Manualïš

https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-111-978/max7219.zip