Specification

• 8 * 8 dot matrix module common cathode
• Operating voltage: 5 v
• Dimensions: length 3.2 cm X 3.2 cm wide X 1.3 cm high
• Holes with four screws, the diameter of 3mm
• Modules with input and output interfaces, support for cascading multiple modules
  
  

Wiring instructions

• Left side of module is input port,right side is output port 
• When control single module,only needs to connect input port with CPU
• When several modules cascading,the first module input port connects with CPU,output port connects with the second  

     module's input port;the second module's output port connects with the third module's input port and so on 

VCC 5 v

GND GND

DIN P2.2

CS P2.1

CLK P2.0