5PCS MAX7219 CWG 8-Digit Digital Tube Display Control Module Red for arduino

5PCS 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.. Condition:： New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions ： Brand: ： Unbranded/Generic ， EAN: ： Does not apply： MPN: ： Does not apply ， Color: ： Green： UPC: ： Does not apply ， 。