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HC-SR501 Adjustable PIR Motion Sensor

Home Forums Product Questions HC-SR501 Adjustable PIR Motion Sensor



This topic contains 2 replies, has 2 voices, and was last updated by  NatsFan 1 year, 4 months ago.

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  • #4409

    NatsFan
    Participant

    I recently ordered the HC-SR501 Adjustable PIR Sensor. I understand that the sensor delay is adjustable. There is another adjustment (potentiometer). Not sure if it is a sensitivity adjustment. Also, there are three pads in the corner of the circuit board labeled “MD:, “L”, “H”. Are these pads useful to the user? It would be appreciated if there was a slip of paper indicating which pot. does what.

    #4412

    SuperDroid
    Keymaster

    I have attached some pictures to help illustrate the HC-SR501 functionalities. In order to choose a trigger setting, you must solder the “L” or “H” pad to the center pad.

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    #4418

    NatsFan
    Participant

    Thank you for the pictures. These pictures would make a nice manual for this PIR sensor.

    Regards

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