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8*8 Matrix Module MAX7219
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1, onboard MAX7219 serial input / output common cathode display driver chip
2, working voltage: 5V
3,on board 2 rows round hole seat, easily plug lattice tubes
4, module 3.2 (mm) x3.2 (mm) 8x8 common cathode lattice tubes
5, the chip’s related pin has led, realize cascade display
6, board size: 32 (mm) X32 (mm)

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