• A single module can drive an 8 * 8 common cathode grid.

• Module operating voltage: 5V.

• Module dimensions: 5 cm length x 3.2 cm width x 1.5 cm height.

• It has four screw holes, 3mm diameter, for mounting with M3 Tongzhu.

• The module has input and output interfaces, supports multiple modules in series.

• Wiring instructions: 1. The left side of the module is the input port and the right side is the output port. 2. To control a single module, simply connect the input port to the CPU. 3. For several modules in series, the input port connects to the CPU, the output connects to the next module, the input of one module to the input port of the other, and so on... 51 MCU, for example:

• VCC 5V
• GND GND
• DIN P22
• CS P21
• CLK P20