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0.28/0.36/0.4/0.56/0.8" Red Led Display 7 Segment 1-4 Bit Common Cathode/Anode.
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Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays. You you can use it for Arduino. Wiring instructions(for example, it can connect any IO port, modified the Port Definition in the program).
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Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays. You you can use it for Arduino. VCC and GND should not be connected reversed, so as not to burn the chip.
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