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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.

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  • L Offline
    Lipax @sdetweil
    last edited by Jun 14, 2024, 11:01 PM

    @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

    U 1 Reply Last reply Jun 15, 2024, 6:15 AM Reply Quote 0
    • U Offline
      uros76 @Lipax
      last edited by uros76 Jun 15, 2024, 6:16 AM Jun 15, 2024, 6:15 AM

      @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 Jun 16, 2024, 1:47 PM Reply Quote 0
      • L Offline
        Lipax @uros76
        last edited by Jun 16, 2024, 1:47 PM

        @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.

        U 1 Reply Last reply Jun 16, 2024, 2:49 PM Reply Quote 0
        • U Offline
          uros76 @Lipax
          last edited by Jun 16, 2024, 2:49 PM

          @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 Jul 20, 2024, 1:24 AM Reply Quote 0
          • L Offline
            Lipax @uros76
            last edited by Jul 20, 2024, 1:24 AM

            it took a long time but i tested the voltage, i can upload a video somewhere if u want. the wrong positive and the regular ones look the same for me. it kinda spikes to ~5v and then instantly goes to 3.3 and stabilizes

            U 1 Reply Last reply Jul 20, 2024, 6:01 AM Reply Quote 0
            • U Offline
              uros76 @Lipax
              last edited by Jul 20, 2024, 6:01 AM

              @Lipax there you go, nothing wrong with the software code. It’s the PIR sensor giving false positives. Nothing you can really do about that. Perhaps a different brand/quality of PIR sensor if it will help but I doubt.

              As mentioned before, due to exact same problem I gave up on PIR sensor completely and moved to the microwave. This works for me now over 3 years. without false positives.

              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 Jul 22, 2024, 8:18 PM Reply Quote 0
              • L Offline
                Lipax @uros76
                last edited by Jul 22, 2024, 8:18 PM

                @uros76 ty ill maybe try to find another microwave sensor. pir i find really ugly try to stay away from them. really sad i didnt get the microwave sensor working. thanks for the help

                1 Reply Last reply Reply Quote 0
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