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A New Chapter for MagicMirror: The Community Takes the Lead
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[MMM-PIR-Sensor] Install failing

Scheduled Pinned Locked Moved Troubleshooting
75 Posts 19 Posters 88.8k Views 18 Watching
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  • J Offline
    Jopyth Moderator @kerijn
    last edited by Jan 24, 2017, 2:29 PM

    @kerijn @fox I think I fixed this issue before, it comes from the changes the Magic Mirror version 2.1.0 introduced. I am not sure, but I think the changes neccessary are almost as simple as here. Will have to test this at home though. Maybe there was something else needed.

    Helpful sticky: How to troubleshoot

    F K 2 Replies Last reply Jan 24, 2017, 6:10 PM Reply Quote 2
    • F Offline
      fox @Jopyth
      last edited by Jan 24, 2017, 6:10 PM

      @Jopyth said in MMM-PIR-Sensor Install failing:

      @kerijn @fox I think I fixed this issue before, it comes from the changes the Magic Mirror version 2.1.0 introduced. I am not sure, but I think the changes neccessary are almost as simple as here. Will have to test this at home though. Maybe there was something else needed.

      Thank you. That fixes the problem for me ! :)

      Issues With MMM-WatchDog known?

      https://forum.magicmirror.builders/post/29827

      Useful for PIR-Sensor: https://forum.magicmirror.builders/post/21299

      1 Reply Last reply Reply Quote 0
      • K Offline
        kerijn @Jopyth
        last edited by Jan 25, 2017, 2:42 PM

        @Jopyth This worked for me for the installation as well. Thank you! However, the sensor does not seem to do anything. How can I check whether the sensor is working properly?

        M 1 Reply Last reply Jan 26, 2017, 7:37 PM Reply Quote 0
        • M Offline
          Makradon @kerijn
          last edited by Jan 26, 2017, 7:37 PM

          @kerijn said in [MMM-PIR-Sensor] Install failing:

          @Jopyth This worked for me for the installation as well. Thank you! However, the sensor does not seem to do anything. How can I check whether the sensor is working properly?

          I have the same problem

          J 1 Reply Last reply Jan 26, 2017, 10:10 PM Reply Quote 0
          • J Offline
            Jopyth Moderator @Makradon
            last edited by Jopyth Jan 27, 2017, 2:10 PM Jan 26, 2017, 10:10 PM

            @Makradon @kerijn I found this. I think you could save this as test.py somewhere on your Pi and see if the output changes when you move and don’t move (set the pin number in the second line) after your start it with python test.py:

            import RPi.GPIO as GPIO
            pin = 11
            GPIO.setwarnings(False)
            GPIO.setmode(GPIO.BOARD)
            GPIO.setup(pin, GPIO.IN)         #Read output from PIR motion sensor
            
            while True:
                   i=GPIO.input(pin)
                   if i==0:                 #When output from motion sensor is LOW
                         print "No intruders",i
                         time.sleep(0.1)
                   elif i==1:               #When output from motion sensor is HIGH
                         print "Intruder detected",i
                         time.sleep(0.1)
            

            Helpful sticky: How to troubleshoot

            T 1 Reply Last reply Jan 27, 2017, 11:41 AM Reply Quote 0
            • T Offline
              thoimi @Jopyth
              last edited by Jan 27, 2017, 11:41 AM

              @Jopyth I had the same problem.
              Your work-around (installation) worked for me but the sensor does not seem to do anything…
              the test.py script shows me always “1” - also when nothing is moving in the room…

              J 1 Reply Last reply Jan 27, 2017, 2:04 PM Reply Quote 0
              • J Offline
                Jopyth Moderator @thoimi
                last edited by Jopyth Jan 27, 2017, 2:09 PM Jan 27, 2017, 2:04 PM

                @thoimi Check for the correct wiring (PIN-Numbers can be confusing, there is the BCM numbering and the other one), also make sure GND and 5V are conncted correctly, adjust sensitivity to maximum and time to minimum (so it hopefully switch back and forth quickly), try covering up the sensor under a bowl or something and then put your hand in to test.

                When I set up the sensor, I also searched for the error for hours, and at the end my problem was the sensor was plugged into pin 4 (BCM) and not 7 as I thought. Also I think you need to remove the , pull_up_down=GPIO.PUD_DOWN part (PIR example).

                Helpful sticky: How to troubleshoot

                T 1 Reply Last reply Jan 27, 2017, 2:09 PM Reply Quote 1
                • T Offline
                  thoimi @Jopyth
                  last edited by Jan 27, 2017, 2:09 PM

                  @Jopyth Thank you for your quick reply! :)
                  I tried for hours now… I think it’s connected correctly, because when I’m switching the pin-number in the script the script shows me always “0” - with the correct pin-number it shows me “1”…
                  I also put the sensor in a box - always shows me “1”… completely strange… :/

                  J 1 Reply Last reply Jan 27, 2017, 2:10 PM Reply Quote 0
                  • J Offline
                    Jopyth Moderator @thoimi
                    last edited by Jopyth Jan 27, 2017, 2:12 PM Jan 27, 2017, 2:10 PM

                    @thoimi It shows 1 because of the pull up resistor. Try removing that part, check my edited post above.

                    Edit: The 1 does not mean it is wired correctly, it just shows 1 because of the pull up resistor.

                    Helpful sticky: How to troubleshoot

                    T 1 Reply Last reply Jan 27, 2017, 6:04 PM Reply Quote 0
                    • T Offline
                      thoimi @Jopyth
                      last edited by thoimi Jan 28, 2017, 10:16 AM Jan 27, 2017, 6:04 PM

                      @Jopyth
                      thank you for the updated script!
                      the new script also shows me “Intruder detected” … i tried many variations of time and sensitivity adjustments…

                      I found another script on the internet:

                      from gpiozero import MotionSensor
                      
                      pir = MotionSensor(4)
                      while True:
                          if pir.motion_detected:
                              print("Motion detected!")
                      

                      This script shows me also the “Motion detected” all the time…
                      Maybe the PIR-Sensor itself is the problem… I will try with another Sensor next week :(

                      1 Reply Last reply Reply Quote 1
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