Max7219 4 in 1 Dot Matrix Module

SKU : W01005 Module parameters: 1. The single module can drive a 8 * 8 common cathode lattice 2. The module voltage: 5V 3. Module size: 12.8 Limi X width 3.2 Limi X height 1.3 Limi 4. The strap 64 fixing screw holes, diameter 3mm 5. module with input and output interfaces, support for cascading multiple modules Wiring instructions: 1. The left side of the module as an input port, an output port on the right. 2. When the control of a single module, simply input port connected to CPU 3. When cascading multiple modules, the first 1 input termination module of the CPU , the first output end 2 input modules, the first 2 output modules terminating the first three input modules, and so on . ... In 51 microcontrollers, for example: The VCC 5V The GND the GND To DIN P2.2 The CS P2.1 The CLK P2.0