Read the statement by Michael Teeuw here.
PIR Sensor turning display on/off over and over
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@elmerito25 said in PIR Sensor turning display on/off over and over:
@cowboysdude said in PIR Sensor turning display on/off over and over:
@Renfield said in PIR Sensor turning display on/off over and over:
It might be interference. Try installing a ferrite bead. The person whose site I’ve linked below had a very similar problem and describes how he fixed it.
https://helentronica.com/2016/01/11/magic-mirror-with-motion-detector/
Renfield
It’s what I had to do with mine… they are very inexpensive…
Thanks guys! Will try this once I get home tonight!
Thanks @Renfield and @cowboysdude ! Followed your advice and found a ferrite bead on unused USB cable and got the PIR sensor working perfectly!
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Great to hear. I love it when a plan comes together.
Now I need to scrounge up a bead for my build.
Ren -
Hi all,
Thanks for the reactions. I ordered one and will test tomorrow.
Herman -
i gave up on my PIR sensor cause this was happening to me…guess who is searching for a Ferrite bead tomorrow!!!
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FWIW, a ferrite bead is a working solution, but I was able to circumvent this issue by keeping the PIR Sensor a good distance from the Pi. Mine is about 3 feet away from the Pi and doesn’t act erratically as it did when it was right next to it during testing.
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Similar problem here, PIR works like a charm (tested with code of post #4) but after starting the MagicMirror the display is turned off and on over and over even though nothing is changed in front of the sensor. (I use MMM-PIR).
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@phrazelle Since I am having a ‘cordless’ mirror (power is coming from wall behind mirror) I don’t want to see cables to my mirror. I’ve build the PIR into the frame of my mirror.
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Even with the bead installed I have various results. Sometimes it’s running ok for an hour or so, but most of the time I’m getting a lot of false positives. And very strange, only with the output timer (2nd yellow knob) on minimal it’s working ok. But then the screen lits up far too short. But output time has nothing to do with it?
