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Installing RTK GPS On Sentinel

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  • S Offline
    S Offline
    SMRazaRizvi
    Regular
    wrote on last edited by
    #1

    Hello All,

    I am planning to remove the default M8N GPS onboard my Sentinel drone and replace it with the HolyBro H-RTK F9P GNSS Series (Helical).

    What should my steps be?
    Should I unplug the M8N and plug in the H-RTK F9P, or will I have to tweak some params/settings to make it work?

    Please help.

    Thanks

    ModeratorM 1 Reply Last reply
    0
    • S SMRazaRizvi

      Hello All,

      I am planning to remove the default M8N GPS onboard my Sentinel drone and replace it with the HolyBro H-RTK F9P GNSS Series (Helical).

      What should my steps be?
      Should I unplug the M8N and plug in the H-RTK F9P, or will I have to tweak some params/settings to make it work?

      Please help.

      Thanks

      ModeratorM Offline
      ModeratorM Offline
      Moderator
      ModalAI Team
      wrote on last edited by
      #2

      @SMRazaRizvi That is not something we have tried so we do not have any way to support you. You might have better luck asking on a PX4 forum

      S 1 Reply Last reply
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      • ModeratorM Moderator

        @SMRazaRizvi That is not something we have tried so we do not have any way to support you. You might have better luck asking on a PX4 forum

        S Offline
        S Offline
        SMRazaRizvi
        Regular
        wrote on last edited by
        #3

        @Moderator

        Have you tried integrating any other RTK GPS?

        Eric KatzfeyE 1 Reply Last reply
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        • S SMRazaRizvi

          @Moderator

          Have you tried integrating any other RTK GPS?

          Eric KatzfeyE Offline
          Eric KatzfeyE Offline
          Eric Katzfey
          ModalAI Team
          wrote on last edited by
          #4

          @SMRazaRizvi We have not.

          S 1 Reply Last reply
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          • Eric KatzfeyE Eric Katzfey

            @SMRazaRizvi We have not.

            S Offline
            S Offline
            SMRazaRizvi
            Regular
            wrote on last edited by
            #5

            @Eric-Katzfey Can you guide me on how to integrate any other GPS module with the Sentinel drone?
            I can get some insights from that process.

            Eric KatzfeyE 1 Reply Last reply
            0
            • S SMRazaRizvi

              @Eric-Katzfey Can you guide me on how to integrate any other GPS module with the Sentinel drone?
              I can get some insights from that process.

              Eric KatzfeyE Offline
              Eric KatzfeyE Offline
              Eric Katzfey
              ModalAI Team
              wrote on last edited by
              #6

              @SMRazaRizvi Which one? Are you not satisfied on the one supplied with Sentinel? Sentinel is a reference design that shows how to use a GPS module. Take a look at the px4 start file for voxl2 in /usr/bin/voxl-px4-start

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              • Eric KatzfeyE Eric Katzfey

                @SMRazaRizvi Which one? Are you not satisfied on the one supplied with Sentinel? Sentinel is a reference design that shows how to use a GPS module. Take a look at the px4 start file for voxl2 in /usr/bin/voxl-px4-start

                S Offline
                S Offline
                SMRazaRizvi
                Regular
                wrote on last edited by
                #7

                @Eric-Katzfey I want to integrate this RTK-GPS: https://holybro.com/collections/standard-h-rtk-series/products/h-rtk-unicore-um982 with Dual Antenna setup to get more accurate positioning.

                Alex KushleyevA 1 Reply Last reply
                0
                • S SMRazaRizvi

                  @Eric-Katzfey I want to integrate this RTK-GPS: https://holybro.com/collections/standard-h-rtk-series/products/h-rtk-unicore-um982 with Dual Antenna setup to get more accurate positioning.

                  Alex KushleyevA Offline
                  Alex KushleyevA Offline
                  Alex Kushleyev
                  ModalAI Team
                  wrote on last edited by
                  #8

                  @SMRazaRizvi , is this GPS module already supported by PX4 (is there a software driver for it in standard PX4 build)? we have not used this one before).

                  S 1 Reply Last reply
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                  • Alex KushleyevA Alex Kushleyev

                    @SMRazaRizvi , is this GPS module already supported by PX4 (is there a software driver for it in standard PX4 build)? we have not used this one before).

                    S Offline
                    S Offline
                    SMRazaRizvi
                    Regular
                    wrote on last edited by
                    #9

                    @Alex-Kushleyev Yes it's supported by PX4.

                    S 1 Reply Last reply
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                    • S SMRazaRizvi

                      @Alex-Kushleyev Yes it's supported by PX4.

                      S Offline
                      S Offline
                      SMRazaRizvi
                      Regular
                      wrote on last edited by
                      #10

                      @SMRazaRizvi Actually connecting my RTK-GPS to the configuration described here: https://docs.modalai.com/voxl2-guides-onboard-offboard-sensors/#external-gps-mag--gnss was not giving me RTK corrections so I am now using the J9 connector on the 5G modem, and that works fine in giving me GPS Coordinates and receiving RTK Connections.

                      But another problem that I am facing is Compass Sensor 0 missing.
                      Do you think there's some setting of the default compass that PX4 was picking up with the M8N GPS that came with the drone? Where can I configure the compass?

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