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LED Keyboard Scan Display Module TM1638
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Price: US$4.89   Submit a wholesale Inquiry
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Introduction
(1) TM1638 digital tube driver chip
(2) the biggest advantage: only need 3 common IO can drive, don't need MCU scan, saving MCU resources
(3) 8 pcs 8 segment digital tube (decimal point)
(4) 2*8 total 16 key
(5) support 8 brightness adjustment

Shipping list
1* module
4* DuPont line

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