HALJIA 3PCS MAX7219 Dot Matrix MCU LED Display Control Module Kit Compatible with Arduino With Dupont Cable
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HALJIA 3PCS MAX7219 Dot Matrix MCU LED Display Control Module Kit Compatible with Arduino With Dupont Cable

$9.99
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Specifications: 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 cascade.Wiring instructions:1. The module left side as an input port and the output port on the right.2. To control a single module, just connect the input port to the CPU.3. 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.In the case of 51 MCU:VCC -> 5VGND -> GNDDIN -> P22CS -> P21CLK -> P20Note:1. VCC and GND is not reversed, it would burn the chip!2. When the 51 microcontroller P0 port controlling, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K3. Please install lattice into the round hole first, and then insert the round hole to PCB board and weld. Face the side of lattice with w

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