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    KY-031 Percussion Knock Sensor – Arduino Compatible


    This module is a knock sensor. It sends out signals which can be read with a microcontroller like Arduino. It is suitable for building projects like electronic drums, and sensing other kinds of vibration. It can be used in anti-theft projects and noise detection systems.


    • Working voltage: 5V
    • 3 Pinout: 5V, GND, Vout
    • Size: 30*20mm
    • Weight: 3g


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