Is anyone using senserbender with HC-SR501 PIR ?

  • Hello,

    Anyone using the MySensors senserbender with a HC-SR501 PIR ?
    If so, how did you connected it? With a step-up (3v --> 5v) or just removed the 3.3v regulator on the PIR?

    Is it working fine (no fake positives)? How long do the batteries last?


  • Hero Member

    I don't have the sensebender, but I have a node with a regular 3.3V Pro Mini and a 501 that has been going for a year now. No regulator. Just 2 x 1.5V AA. Don't know how it is still functioning as I also read that I should expect false positives as well as false negatives. The sensor is outdoors so it is hard to say anything about false positives since there are birds and stuff passing by. But I have never ever known it to miss a beat as I walk by (which is something I do 3-4 times a day).

    Just connect the 3.3V to the third / "H pin" on the PIR board.

  • yeah i'm running a bunch.
    connect to the bottom pin on the top left side (basically not the vcc pin on the bottom)
    it take 3v and works great.


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