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    Voxl2 reboot due to what it seems a power limitation

    VOXL 2
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    • Riccardo FranceschiniR
      Riccardo Franceschini @Vinny
      last edited by

      Hi,

      after experimenting, we found that the problem was a RealSense external camera that we plugged in.

      It was connected through USB via the 5G module. Probably, this was causing a short circuit or overload of the board. Anyway, modifying the connection cable so that only the data goes through the board while it is powered separately seems to solve the problem.

      Alex KushleyevA VinnyV 2 Replies Last reply Reply Quote 0
      • Alex KushleyevA
        Alex Kushleyev ModalAI Team @Riccardo Franceschini
        last edited by

        Great to hear you got it figured out!

        1 Reply Last reply Reply Quote 0
        • VinnyV
          Vinny ModalAI Team @Riccardo Franceschini
          last edited by Vinny

          Hi @Riccardo-Franceschini
          Our USB hubs have a smart power switch with a message feature that relays back to the host if there is an error/over-current condition on VBUS.
          It might be that is what was causing the reset.
          But yeah, glad you figured it out!!
          Nice work!

          VinnyV 1 Reply Last reply Reply Quote 0
          • VinnyV
            Vinny ModalAI Team @Vinny
            last edited by

            @Riccardo-Franceschini For future note, this page here lists all the VBUS capabilities in our designs so you know which port (if any) can support your high current use cases:
            https://docs.modalai.com/expansion-design-guide/#usb-expansion-over-j3--j5

            voxltesterV 1 Reply Last reply Reply Quote 1
            • voxltesterV
              voxltester @Vinny
              last edited by voxltester

              @Vinny

              I have the rebooting issue with a VOXL2 flight deck with Microhard radio.

              I have tested with 5G board (M0090-3-01) as well. I connected a USB3 ethernet adapter on the 5G board to communicate with my laptop through ethernet cable. The same issue happened.

              When I directly powered the system by using a power supply (5V) without a power module, it did not show any rebooting issue....
              I am still figuring out, so please let me know what I need to try...

              VinnyV 1 Reply Last reply Reply Quote 0
              • VinnyV
                Vinny ModalAI Team @voxltester
                last edited by

                Hi @voxltester
                Please take a look at this old thread: https://forum.modalai.com/topic/1356/sentinel-drone-randomly-reboots?_=1673383475709

                Let us know if that issue with J5 is what is happening.

                It is unlikely you are pulling too much current in normal operations as you more than likely have a fault if you think the 5V is drooping.

                Thanks!
                Vinny

                1 Reply Last reply Reply Quote 0
                • voxltesterV
                  voxltester @Vinny
                  last edited by voxltester

                  @Vinny

                  I will have a look.

                  This is very randomly happening...
                  I changed power source (battery, wall power), but it is working well now...

                  Is there any way to check GPU usage on VOXL2?

                  Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                  • Eric KatzfeyE
                    Eric Katzfey ModalAI Team @voxltester
                    last edited by

                    @voxltester voxl-inspect-cpu will show you GPU utilization and temperature

                    voxltesterV 2 Replies Last reply Reply Quote 0
                    • voxltesterV
                      voxltester @Eric Katzfey
                      last edited by voxltester

                      This post is deleted!
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                      • voxltesterV
                        voxltester @Eric Katzfey
                        last edited by

                        This post is deleted!
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