5Pcs MAX7219 Dot Matrix Module MCU LED Control Module KitSpecifications: A single module can drive an 8 x 8 common cathode latticeOperating voltage: 5VSize: 5 x 3. 2 x 1. 5 cm (L x W x H)LED color: RedWith four screws hole, aperture 3mmWith input and output interfaces, supports multiple modules cascadeWiring instructions: 1. The module left side as an input port and the output port on the right2. To control a single module, just connect the input port to the CPU3. When cascading multiple modules, the input
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5Pcs MAX7219 Dot Matrix Module MCU LED Control Module Kit