Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Putting a potentiometer on a hall sensor

    Scheduled Pinned Locked Moved Unsolved
    General Discussion
    5
    9
    421
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • bigwood247undefined
      bigwood247
      last edited by bigwood247

      20200608_204709.jpg

      Is there a way to add a potentiometer on this hall effect sensor that I want to use as a z sensor for auto bed leveling I want to put magnets under my bed as calibration points

      1 Reply Last reply Reply Quote 0
      • piperswundefined
        pipersw
        last edited by pipersw

        hall sensor output is digital, I don't understand what you would do with a potentometer.
        Have you the reference of the board, or the datasheet, schematic ?

        1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User
          last edited by

          hall sensors can be analouge, and the one on the picture probably is, using an opamp as a comparitor to make it act like a digital output.

          the output labeled A0 is probably the analouge output, but i don't understand why OP can't use the digital output for probing?

          1 Reply Last reply Reply Quote 0
          • bigwood247undefined
            bigwood247
            last edited by

            Yeah I think this on can have a digital or analog signal but I want to add a potentiometer to it so u can adjust the trigger distance ither closer or farther

            1 Reply Last reply Reply Quote 0
            • bigwood247undefined
              bigwood247
              last edited by bigwood247

              Hall-Effect-Endstop-3.3V.jpg

              Like this hall sensor has a pot built into it to adjust the trigger distance

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

                It might be possible to add a potentiometer, but I can't say how to do it without a schematic of the board.

                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

                1 Reply Last reply Reply Quote 0
                • bigwood247undefined
                  bigwood247
                  last edited by

                  I'll try to get that schematic but I'm thinking it might be hard to get lol

                  zaptaundefined 1 Reply Last reply Reply Quote 0
                  • zaptaundefined
                    zapta @bigwood247
                    last edited by

                    @bigwood247, you can try bending the sensor in/out for minor adjustment but not too many times.

                    1 Reply Last reply Reply Quote 0
                    • bigwood247undefined
                      bigwood247
                      last edited by

                      20200624_131531.jpg

                      So I bought diff hall endstops that I can add a external potentiometer to so now i know i can adjust the trigger distance with my external potentiometer the three holes u see in the above pic are where u solder the pot to

                      1 Reply Last reply Reply Quote 0
                      • First post
                        Last post
                      Unless otherwise noted, all forum content is licensed under CC-BY-SA