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  4. GPS module setup on VOXL2

GPS module setup on VOXL2

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  • AngelAlbenizA Offline
    AngelAlbenizA Offline
    AngelAlbeniz
    wrote on last edited by
    #1

    Hi,

    I'm trying to configure a VOXL2 to fly outdoors with GPS. And so far I'm struggling with the configuration of the GPS module. The GPS module I use has a Ublox-F9P chip that I have configured to do RTK, which outputs UBX protocol at a selectable baudrate. I fly this same module with this configuration, doing RTK, in a drone with VOXL Fligth and it works perfectly.

    As for the compass, I connect a stand alone mag to the i2c port. On the VOXL2 I have not yet got to work with the mag.

    In VOXL2 I connect the gps module to the GNSS TX 3P3V and GNSS RX 3P3V ports of the J19 connector. But I can't get it to work. Also I don't see px4 parameters of gps configuration like: SER_GPS1_BAUD or GPS_1_CONFIG.

    I see that in the file /etc/modalai/voxl-px4.config there is the following:

    # On M0054 the GPS and RC drivers run on SLPI DSP
    else
        if [ "$GPS" == "MATEK" ]; then
            # Use this gps start line instead for Matek Systems M8Q-5883 module
            /bin/echo "Starting Mateksys M8Q-5883 GPS"
            qshell gps start
        elif [ "$GPS" == "HERE3" ]; then
            # Use this line for the Here3 GPS module
            /bin/echo "Starting Here3 GPS"
            qshell gps start
        else
            # Only the newer Holybro unit is supported on M0054
            /bin/echo "Starting Holybro GPS"
            qshell gps start -d 7 -b 115200
    

    Does this mean that only Matek GPS, HERE 3 and Holybro can be used?

    Running flowing commands outputs:

    VOXL2 1.PNG

    System info:

    VOXL2 2.PNG

    Any thoughts on this? Thanks!

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    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      It is likely that driver is not supported. You may need to add it to the VOXL 2 PX4 build if you want to use the integrated flight controller. It may be easier to use an external flight controller if you want to use a broader set of inputs

      Link Preview Image
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      ModalAI technical documentation for VOXL and VOXL 2 Companion Computers for PX4 and ArduPilot Obstacle Avoidance and GPS-denied navigation, assembled in the USA

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      ModalAI Technical Docs (docs.modalai.com)

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