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    Duet3D magnetic filament sensor wiring confusion

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    Filament Monitor
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    • themelleundefined
      themelle
      last edited by

      The two connectors are wired 1-to-1, so placing them side by side the wires read on both of them

      • Signal
      • +V
      • GND

      from one side to the other.

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      • DarylMcMundefined
        DarylMcM
        last edited by

        Referring to my pic of the sensor on the diagram, the pin on the right (large square) should be pin 1.
        If we wire the connector as it would mount on the sensor, the key would face down and ground would still be on the right with the signal on the left.
        On the Duet 2wifi control board those inputs are opposite that. That is viewing the control board with the key tab on E0 stop connector again pointing down, the ground is on the left and the signal is on the right.
        So a 1 to 1 wiring would not be what the sensor diagram is showing. It would be what the pic of the installed unit is showing if my assumptions of the wire colors are correct. Ground on the left and signal on the right.
        If by placing the wire connectors wiring end to wiring end and connecting the cable straight across, it would match the sensor diagram and the wifi control board, but that would be 1 to 3, 2 to 2 and 3 to 1 connection.
        Forgive me if I’m being a little thick here, but it has been a long 6 day week and I haven't recovered quite yet.

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        • themelleundefined
          themelle
          last edited by

          Well, as far as "what-is-what" is concerned, the docs should tell you enough.

          My approach does not rely on exact knowledge of the pin usages - what I really wanted to tell you:

          • put both connectors equally oriented side by side
          • number the pins from left to right as 1,2 and 3 respectively
          • wire pin 1 on connector 1 to pin 1 on connector 2
          • wire pin 2 on connector 1 to pin 2 on connector 2
          • wire pin 3 on connector 1 to pin 3 on connector 2

          No need to think about what the pin's usages are šŸ˜‰

          Good luck
          Andreas

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          • T3P3Tonyundefined
            T3P3Tony administrators
            last edited by

            Sorry the documentation was confusing, Ihave updated it.

            https://duet3d.dozuki.com/Wiki/Duet3dFilamentMonitor_RotatingMagnetVersion#Section_Wiring

            The original image you have a screen shot of shows the "top" of the board which is the opposite side from the headers.

            www.duet3d.com

            T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
            • T3P3Tonyundefined
              T3P3Tony administrators @T3P3Tony
              last edited by

              @DarylMcM updated again.

              www.duet3d.com

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              • DarylMcMundefined
                DarylMcM
                last edited by

                TP3Tony
                Yes, the new documentation layout makes much more sense. The output pin is now next to the 2 pin switch header. The original showed the ground next to that header.

                Now a 1 to 1 connection between the connectors makes sense as well.
                Knowing what the pin of any header is suppose to be does matter, else one might find a destroyed accessory or worse yet a very expensive control board.

                T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                • T3P3Tonyundefined
                  T3P3Tony administrators @DarylMcM
                  last edited by

                  @DarylMcM indeed, so sorry for the confusion!

                  www.duet3d.com

                  57buickundefined 1 Reply Last reply Reply Quote 0
                  • 57buickundefined
                    57buick @T3P3Tony
                    last edited by

                    I just got my sensor in the mail. I still can't understand the wiring, what is the 2 pin wire lead for? Am I using both the 3 pin and the 2 pin or is it an either or thing? which do I hook up where?

                    T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                    • T3P3Tonyundefined
                      T3P3Tony administrators @57buick
                      last edited by

                      @57buick the 2 pin lead is to connect an external switch. this is optional, generally used where the monitor is connected after the extruder:
                      https://duet3d.dozuki.com/Wiki/Duet3dFilamentMonitor_RotatingMagnetVersion#Section_After_the_extruder

                      On systems that use a bowden tube it is also possible to mount the filament monitor after the extruder. In this case filament out will not be detected until the end of the filament is in the extruder. The second two pin header on the PCB is connected a separate filament sensing switch if you want to detect filament out before the extruder, but detect movement after the extruder.

                      I have also updated the wiring diagram to show this is optional.

                      www.duet3d.com

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                      • 57buickundefined
                        57buick
                        last edited by

                        thanks for clarifying, one other question. Can I share the ground with my other sensors like my endstop switch and IR sensor when running thru my breakout board back to the board then split off to the various connectors? To save running extra wires to my hotend?

                        dc42undefined 1 Reply Last reply Reply Quote 0
                        • dc42undefined
                          dc42 administrators @57buick
                          last edited by

                          @57buick said in Duet3D magnetic filament sensor wiring confusion:

                          thanks for clarifying, one other question. Can I share the ground with my other sensors like my endstop switch and IR sensor when running thru my breakout board back to the board then split off to the various connectors? To save running extra wires to my hotend?

                          Yes, you can share the ground connection with other 3.3V ground connections such as IR Z probe and endstop switches. Note, thermistors do not use a ground connection, they use VSSA; so you can't share a thermistor wire.

                          Duet WiFi hardware designer and firmware engineer
                          Please do not ask me for Duet support via PM or email, use the forum
                          http://www.escher3d.com, https://miscsolutions.wordpress.com

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                          • 57buickundefined
                            57buick
                            last edited by 57buick

                            my sesnor does not appear to work? I get no data received. I also have no lights on it when powering on or anything, it looks like no LED was soldered onto it? Is this correct? @dc42 I got it from Filastruder recently

                            filament sensor.JPG

                            T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                            • T3P3Tonyundefined
                              T3P3Tony administrators @57buick
                              last edited by

                              @57buick I have replied on your other thread. Posting to multiple threads does not help.

                              www.duet3d.com

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