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    1pcs 8x digital tube + 8x key + 8x double color LED modules TM1638 for Arduino

    • Item No : 264367838182
    • Condition : New
    • Brand : Unbranded/Generic
    • Seller : mecklenburg8
    • Current Bid : US $7.89

    • * Item Description

    • In a word, it is a way of short circuit trigger between signal input and GND negative pole. When there is a signal in signal input, public side and common side will breakover. 1 Channel 5V Relay Module Shield.
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