TM1638 8-digit common anode LED keyboard KeyS scanning+display module A3GS
3,46 €
(1) using TM1638 chip digital tube driver drive common anode LED digital tube (2) The biggest advantage: just three ordinary IO can drive, no MCU scan, very save MCU resources (3) with eight 8-segment (including the decimal point) (4) 2 * 8 Total 16 keys; (5) support 8 brightness adjustment;.
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