MAX7219 Dot Led Matrix Module

A single module can drive an 8 * 8 common cathode lattice
Module Operating voltage: 5V.
Module size: 5 cm long X 3.2 cm wide X 1.5 cm high
 

Module with input and output interfaces, supports multiple modules cascade
Wiring instructions:
1.The module left as an input port to the output port on the right.
2.The control of a single module, simply input port to the CPU 3.Multiple modules cascade input termination CPU, 2 output termination module, a module of the input of the input terminal, the output terminal of the first two modules of the first three modules, and so on … 51 MCU, for example:
VCC 5V
GND GND
DIN P22
CS P21
CLK P20