Introduction :
MAX7219 Dot Matrix Module.
- A single module can drive an 8 x 8 common cathode lattice
- Operating voltage: 5V
- Size: 5 x 3.2 x 1.5 cm (L x W x H)
- LED color: red
- With four screws hole, aperture 3mm
- With input and output interfaces, supports multiple modules cascade
Connections :
- The module left side as an input port and the output port on the right
- To control a single module, just connect the input port to the CPU
- When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on.
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