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RM3100 Magnetometer

Scheduled Pinned Locked Moved VOXL Flight
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  • m4v3rM Offline
    m4v3rM Offline
    m4v3r
    wrote on last edited by
    #1

    Hi ModalAI, ^^

    I'm encountering issues with a certain compass on your flight controller.
    I detailed the issue here link text
    but in general I wonder, do you guys have any specific experience with this mag unit?

    I'll try and keep you updated. Thanks for your work, guys!

    Ch.B.

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    • modaltbM Offline
      modaltbM Offline
      modaltb
      ModalAI Team
      wrote on last edited by
      #2

      Hi @m4v3r ,

      I'm nearly positive I tested CONNECTIVITY on the "drotek" version of this with success (I mainly remember that I did fry one out of two by reversing GND and VDD...).

      I'll try to find this when back in the office and give it a go and report back.

      m4v3rM 1 Reply Last reply
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      • modaltbM modaltb

        Hi @m4v3r ,

        I'm nearly positive I tested CONNECTIVITY on the "drotek" version of this with success (I mainly remember that I did fry one out of two by reversing GND and VDD...).

        I'll try to find this when back in the office and give it a go and report back.

        m4v3rM Offline
        m4v3rM Offline
        m4v3r
        wrote on last edited by m4v3r
        #3

        @modaltb Hello there, I just wanted to give a little update here:
        I managed to connect it in a way that it's now appearing on the I2C bus as 23 by putting a 10k resistor on vcc and the I2C-enable pin but it's still not being detected by PX4 as a magnetometer and I couldn't start it manually either.
        I do see it on the bus just like with another mag ("gy-85" board using the QMC5883L and two other IMUs which also appear on the bus when scanned) but can't get it to start and work in PX4.

        Ch.B.

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        • m4v3rM Offline
          m4v3rM Offline
          m4v3r
          wrote on last edited by
          #4

          Hey, just giving some more information and a little bump since I'm still in desperate need of this compass working on my drone.
          Please try and have another look into this for me if you could... 😉
          thanks so much and a perfect weekend for everyone.
          cheers

          unit on bus:
          mag-1.jpg

          Tried starting it manually to no avail:
          mag-2.jpg

          Ch.B.

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          • modaltbM Offline
            modaltbM Offline
            modaltb
            ModalAI Team
            wrote on last edited by
            #5

            @m4v3r , sorry for the lag. This mag is not in our office. What I would do myself is go into the driver and see what's happening. We don't re-sell this mag and I don't have one so I'm stuck a bit. Do you want to ship one to us and we put a debugger on PX4 and see what's up?

            m4v3rM 1 Reply Last reply
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            • modaltbM modaltb

              @m4v3r , sorry for the lag. This mag is not in our office. What I would do myself is go into the driver and see what's happening. We don't re-sell this mag and I don't have one so I'm stuck a bit. Do you want to ship one to us and we put a debugger on PX4 and see what's up?

              m4v3rM Offline
              m4v3rM Offline
              m4v3r
              wrote on last edited by
              #6

              @modaltb Hey hey know it's been forever but just right now I finally got it working. 🙂
              I adjusted the adress in the corresponding driver's .h file and now it's finally running.
              thanks again for going through this with me.
              cheers

              Ch.B.

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