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    2pcs Knock Sensor Module with LED KY-031 For Arduino PIC AVR Raspberry Pi NEW

    • Item No : 404825840775
    • Condition : New
    • Brand : Unbranded/Generic
    • Seller : lmu-audino
    • Current Bid : US $1.13

    • * Item Description

    • Knock sensor module and a digital 13 interface, built-in LED build a simple circuit to produce percussion flasher. pinMode (Shock, INPUT) ;// define knock sensor output interface. if (val == HIGH) // When the percussion when the sensor detects a signal, LED flashes.
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