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

    UPDATE: Replaced my PIR-Sensor with a Doppler Microwave Sensor.

    Scheduled Pinned Locked Moved Tutorials
    103 Posts 17 Posters 91.0k Views 25 Watching
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    • L Offline
      Lipax @uros76
      last edited by

      @uros76
      the range is not the problem. i get positives when nothing is moving near it

      uros76U kayakbabeK 2 Replies Last reply Reply Quote 0
      • uros76U Offline
        uros76 @Lipax
        last edited by

        @Lipax this sensor is very sensitive and catches any movement 360 around from several meters away. I had same problem… If you don’t dial down the sensitivity-range you will keep getting false positives.

        My magicmirror projects: https://forum.magicmirror.builders/post/79889, https://forum.magicmirror.builders/post/93241 and https://forum.magicmirror.builders/post/94586

        1 Reply Last reply Reply Quote 1
        • kayakbabeK Offline
          kayakbabe @Lipax
          last edited by

          @Lipax try dialing down the sensitivity, it’s probably picking up dust or something small you can’t see.

          1 Reply Last reply Reply Quote 0
          • L Offline
            Lipax
            last edited by

            thanks for the help, but i doubt its some kind of movement since its exactly every minute. i tried a different room and its the same.

            bewegung1.jpg

            S 1 Reply Last reply Reply Quote 0
            • S Offline
              sdetweil @Lipax
              last edited by

              @Lipax please don’t submit duplicate posts…

              all users with reputation below 2 have their posts reviewed… this eliminates all the porn, advertising and trash posts from the forum.

              it just takes time for (me) to get to review the posts…

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              L 1 Reply Last reply Reply Quote 1
              • uros76U Offline
                uros76
                last edited by

                Can you share your python code? Perhaps there’s something there

                My magicmirror projects: https://forum.magicmirror.builders/post/79889, https://forum.magicmirror.builders/post/93241 and https://forum.magicmirror.builders/post/94586

                1 Reply Last reply Reply Quote 0
                • L Offline
                  Lipax @sdetweil
                  last edited by

                  @sdetweil sry about that

                  @uros76 i hope thats not the problem

                  import RPi.GPIO as GPIO
                  import time
                  import datetime
                  
                  switch=11
                  
                  
                  GPIO.setmode(GPIO.BOARD)
                  GPIO.setup(switch, GPIO.IN)
                  
                  
                  
                  
                  try:
                      while True:
                          if GPIO.input(switch) == 1:
                              now = datetime.datetime.now()
                              print(now.strftime("%Y-%m-%d %H:%M:%S"), "something")
                              
                          time.sleep(5)
                          
                          
                  except KeyboardInterrupt:
                      print("Bye Bye")
                  finally:
                      GPIO.cleanup()
                  
                  

                  thanks for the help

                  uros76U 1 Reply Last reply Reply Quote 0
                  • uros76U Offline
                    uros76 @Lipax
                    last edited by uros76

                    @Lipax try different gpio pin, like a pin 18 which is a GPIO 5. It’s default set to input function. Don’t forget to adjust the python code, change switch to 18.

                    You might check the GPIO 0 (your pin 11) if it is set to input. Use command: raspi-gpio get 0 or raspi-gpio get to check all GPIO’s.

                    Also, use a multimeter to measure the voltage coming out from sensor. It should be around 3.3V for few seconds when sensing detected. This way you can monitor if actual detection / voltage is coming from sensor.

                    My magicmirror projects: https://forum.magicmirror.builders/post/79889, https://forum.magicmirror.builders/post/93241 and https://forum.magicmirror.builders/post/94586

                    L 1 Reply Last reply Reply Quote 0
                    • L Offline
                      Lipax @uros76
                      last edited by

                      @uros76
                      i forget to mention i already changed the pin, i first tried pin 7 before

                      according to pinout.xyz my pin 11 is gpio 17

                      GPIO 17: level=0 fsel=0 func=INPUT
                      

                      thank you very much for helping me, i dont have a multi meter but ill ask my father to do that. u think its not the sensor sending the signal? maybe it picks up something with the wire along the way? i dont have a engineering background.

                      uros76U 1 Reply Last reply Reply Quote 0
                      • uros76U Offline
                        uros76 @Lipax
                        last edited by

                        @Lipax you need to be sure that sensor is not the cause.
                        Measuring it’s sensing, output voltage and duration is a good way of confirming if sensor works ok.

                        My magicmirror projects: https://forum.magicmirror.builders/post/79889, https://forum.magicmirror.builders/post/93241 and https://forum.magicmirror.builders/post/94586

                        L 1 Reply Last reply Reply Quote 0
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