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  3. Mavlink Telemetry Routing, port selection

Mavlink Telemetry Routing, port selection

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  • Aldo Castro FreireA Offline
    Aldo Castro FreireA Offline
    Aldo Castro Freire
    Regular
    wrote on last edited by
    #1

    Hi guys,

    I was wondering if there is a way to select the port we are rerouting the mavlink messages, the documenation only says how to change the ip. or change between udp or tcp ?

    https://docs.modalai.com/voxl-vision-px4-telemetry/

    This part specifically:

    A second manual IP entry can optionally be configured and enabled. Both of these will fields will tell voxl-vision-px4 to continuously forward all mavlink trafic from PX4 to these IP addresses at port 14550 which is the default UDP port for qGroundControl.

    "en_secondary_qgc": false,
    "secondary_qgc_ip": "192.168.1.214",
    
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    • modaltbM Offline
      modaltbM Offline
      modaltb
      ModalAI Team
      wrote on last edited by
      #2

      Hi @Aldo-Castro-Freire ,

      Not via the config file, but here's where they're defined if you are able to build from source:

      https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-vision-px4/-/blob/v0.6.8/include/udp_mavlink.h#L41

      For TCP, a bit more work likely is needed, but here's the UDP implementation that could be used as a guide:

      https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-vision-px4/-/blob/v0.6.8/src/udp_mavlink.c

      -Travis

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      • Aldo Castro FreireA Offline
        Aldo Castro FreireA Offline
        Aldo Castro Freire
        Regular
        wrote on last edited by
        #3

        How do I delete my current version voxl-vision-px4 to install this one ?

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        • Aldo Castro FreireA Offline
          Aldo Castro FreireA Offline
          Aldo Castro Freire
          Regular
          wrote on last edited by
          #4

          One more questions, where should I change in the code to change the port using the config file. Add a new variable called port. This will help me a lot as I have more than 1 drone.

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          • Aldo Castro FreireA Offline
            Aldo Castro FreireA Offline
            Aldo Castro Freire
            Regular
            wrote on last edited by
            #5

            Actually here: https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-vision-px4/-/blob/master/src/config_file.c

            is parsing and asking for the port, should I just add the variable and change the port as I want ?

            07ae7508-4be9-4ed9-a875-05cb308d8eed-image.png

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            • Chad SweetC Offline
              Chad SweetC Offline
              Chad Sweet
              ModalAI Team
              wrote on last edited by
              #6

              Have you tried changing the port number parameter in /etc/modalai/voxl-vision-px4.conf ?

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              • Aldo Castro FreireA Offline
                Aldo Castro FreireA Offline
                Aldo Castro Freire
                Regular
                wrote on last edited by
                #7

                Yes, I tried apparently master and v0.68 of the code are different while in master is not hardcode the udp port. For v0.68 it is hardcode. So I assumed my version is hardcode because nothing seem to change.

                Do I need to delete my voxl-vision-px4? To install a new custom version?

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