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    TM1638 8 Bits LED Digital Tube Module Keyboard Scan and Display Module

    • Electronic
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    Overview
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    Function introductios:
    *Only need 3-wire control.
    *Adapts TM1638 digital tube drive chip. Common anode LED digital tube.
    *Only need three common IO and could drive, no need MCU scan, save MCU sources.
    *With 8 8digital tube (including decimal point).
    *2*8 16 buttons.
    *Support 8 degree brightness adjustment.
    *Size: 68mmx68mm

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