Wire Instruction:

 

The ground of Arduino and the ground of LED matrix need to be connected. The power supply of LED matrix needs 5V/1A.

Arduino Digital Pin 7 -> D of LED matrix

 

Arduino Digital Pin 6 -> C of LED matrix

Arduino Digital Pin 5 -> B of LED matrix

Arduino Digital Pin 4 -> A of LED matrix

Arduino Digital Pin 3 -> G of LED matrix

Arduino Digital Pin 2 -> DI of LED matrix

Arduino Digital Pin 1 -> CLK of LED matrix

Arduino Digital Pin 0 -> LATCH of LED matrix

 

 

 

Download:

 

 

• Chipset Spec:
  • LED matrix
  • 74HC138
  • 74HC595
• Schematics
• Arduino Sample Code: Display One Charater counting from 0-9 on one module
• Arduino Sample Code: Display two static charaters on two modules