B307

Parameters:

1. A single module can drive a total of 8 * 8 dot matrix overcast
2. Working voltage: 5V
3.  Size: *12.8 cm*3.2 cm *1.3 cm (L*W*H)
4. With 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. If a single control module, simply input port connected to CPU
3. cascading multiple modules, input and output termination CPU, input the output end of the second module of the first module, the first two modules of the first three input termination module, and so on. ..
51 microcontrollers, for example:
VCC → 5V
GND → GND
DIN → P2.2
CS → P2.1
CLK → P2.0