Feature(may vary by option.)

●🌟MAX7219 8x8 dot matrix common cathode LEDs, three color options: red, green, blue.
●🌟Operating voltage: 5V, MCU control
●🌟Size: 32*32*13mm, Weight:12g
●🌟With 4 fixing screw holes for easy installation, diameter 3mm.
●🌟Modules with input and output interfaces, support for cascading multiple modules.

[Green]

Description

Description:
Wiring instructions:
1. On the left block to an input port, an output port on the right.
2. When the control of a single module, simply enter the port received a CPU.
3. When more than 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 on.

Connection:
To 51 single example:
VCC --- 5V
GND --- GND
DIN --- P2.2
CS --- P2.1
CLK --- P2.0

Package Includes:
4pcs MAX7219 8*8 dot matrix module
5P Straight Pin
5P Curved Pin