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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

PIR Sensor turning display on/off over and over

Scheduled Pinned Locked Moved Unsolved Troubleshooting
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  • H Offline
    hermlam
    last edited by hermlam Mar 2, 2017, 4:43 PM Mar 2, 2017, 1:52 PM

    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?

    1 Reply Last reply Reply Quote 0
    • J Offline
      Jay
      last edited by Mar 5, 2017, 9:08 PM

      Basically I had the same error with the display turning on and off over time. All in anger, I deinstalled the MagicMirror from the Pi and began at zero again.
      After updating and upgrading the Pi and installing the MagicMirror, a new try with the PIR-Module was iniciated. So I installed the PIR-Module and somehow noticed that my GPIO cables were wrong connected (ground connected to GPIO21 and vice-versa).
      So after this embarassing moment of disbelieve I changed the connections and checked if the sensor is working with a simple python script:

      from gpiozero import MotionSensor
      import time
      
      pir = MotionSensor(21)
      
      while True: #repeat this forever
          if pir.motion_detected: # if motion is detected print the message
              print("Motion detected!")
          if not pir.motion_detected: # if no motion is detected print the message
              print("No motion detected!")
          time.sleep(1)
      

      Note that my pir is using GPIO21.
      With this script I tested the sensor and it worked like a charm, even though the sensor is placed 5 centimeters away from the raspberry pi 3 (with no case or even a bead installed).
      In the end, I only had to do a cd MagicMirror again, and install the MagicMirror:
      npm install. With this setup the MMM-PIR-module works magnificient.

      D 1 Reply Last reply Mar 10, 2017, 8:05 PM Reply Quote 1
      • D Offline
        deepshades @Jay
        last edited by Mar 10, 2017, 8:05 PM

        @Jay

        Hi Jay, can you reply a link to your PIR module you finaly use?

        J 1 Reply Last reply Mar 10, 2017, 8:14 PM Reply Quote 0
        • J Offline
          Jay @deepshades
          last edited by Mar 10, 2017, 8:14 PM

          @deepshades
          Basically its just the standard PIR-Sensor shipped with female to female gpio connections (PIR-Sensor Amazon).

          D 1 Reply Last reply Mar 10, 2017, 8:34 PM Reply Quote 0
          • D Offline
            deepshades @Jay
            last edited by Mar 10, 2017, 8:34 PM

            @Jay

            Ok, so you just use a script to let the sensor deactivate the hdmi output?
            Could you tell me the steps to let all work together?

            J 1 Reply Last reply Mar 10, 2017, 9:03 PM Reply Quote 0
            • J Offline
              Jay @deepshades
              last edited by Mar 10, 2017, 9:03 PM

              @deepshades
              Well ok…
              step 1: get nodejs and npm --> sudo apt-get install nodejs then sudo apt-get install npm
              step 2: update + upgrade the pi --> sudo apt-get update then sudo apt-get dist-upgrade
              step 3: install MagicMirror --> as seen here MagicMirror Github Page
              step 4: connect the PIR-Sensor to your Pi --> ground to ground (e.g. Pin 6), VCC to 5V (e.g. Pin 2), Out to GPIO XX (e.g. Pin 16)
              step 5: check if PIR-Sensor works --> as seen at my script above (watch your connected GPIO pin, maybe change in script is required) --> some fiddling with sensitivity knobs here is needed
              step 6: install MMM-PIR --> MMM-PIR Github Page
              step 7: reboot and reinstall MagicMirror in MagicMirror directory --> cd MagicMirror and npm install

              this has worked for me…

              J 1 Reply Last reply Mar 10, 2017, 9:41 PM Reply Quote 1
              • J Offline
                johnnyboy @Jay
                last edited by johnnyboy Apr 28, 2017, 10:26 PM Mar 10, 2017, 9:41 PM

                This post is deleted!
                J 1 Reply Last reply Mar 10, 2017, 9:53 PM Reply Quote 0
                • J Offline
                  Jay @johnnyboy
                  last edited by Mar 10, 2017, 9:53 PM

                  @johnnyboy

                  The steps I described started after a succesfully installation of the operating system on the pi, so with no MagicMirror installed --> step 3 is the first time MM is installed.
                  These are the steps which worked for me, somehow after the second install of the MagicMirror (step 7) the PIR worked --> this step could be obsolete for others, thats just what i did experience.

                  J 1 Reply Last reply Mar 10, 2017, 10:02 PM Reply Quote 1
                  • J Offline
                    johnnyboy @Jay
                    last edited by johnnyboy Apr 28, 2017, 10:26 PM Mar 10, 2017, 10:02 PM

                    This post is deleted!
                    1 Reply Last reply Reply Quote 0
                    • J Offline
                      jproehl
                      last edited by Apr 2, 2017, 6:44 AM

                      Hi: I’m having the same problem with the PIR sensor module - when motion is detected the screen comes on for about 1 sec and then shuts off. It operates like that for a minute or so and then begins to not respond or responds intermittently to motion. I’ve added a magnet ring, updated the OS and the MMM-PIR module, but still have the same issues. Any ideas what I should check? Thx!

                      E 1 Reply Last reply Apr 4, 2017, 11:01 PM Reply Quote 0
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