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10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino

10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino
10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino
10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino
10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino

10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino

10PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino. Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program) 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines..