8X8 LED matrix has too many pins that Arduino is difficult to interface. This kit shows how to use an interface chip MAX7219 to interface Arduino to drive 8X8 LED matrix.

This is a 8X8 LED matrix kit that includes the following:

 

• MAX7219
• Electrolytic capacitor：10uF/25V
• Resistor：10K
• Capacitor：0.1uF
• Sockets to hold MAX7219 and LED matrix
• Headers
• Bare PCB

 

The board needs a power supply of 5V /1A.

 

Schematics:

Wire Instruction:

 

• Ground of Arduino -> GND of the module 
• Digital pin 8 of Arduino -> DIN of the module
• Digital pin 9 of Arduino -> CS of the module
• Digital pin 10 of Arduino -> CLK of the module

 

 

 

Assembly Instruction

Step 1Install resistor R1.

Step 2Install capacitor C1.

Step 3Install capacitor C2.

Step 4Install header J2.

Step 5Install header J1.

Step 6Install LED matrix receptacle.

Step 7Install LED MAX7219 receptacle.

Step 8Lay down C2, and install the MAX7219 and LED matrix to their receptacles.Finally, we get the finished LED matrix module: