Flight Deck with Microhard Radio not connecting to QGC

  • Following this guide here, I was able to connect one microhard radio from my PC to one wired to the flight deck. With VOXL shell, I was able to ping the PC's ip address. As per the guide, I updated the qgc_ip field in voxl-vision-px4.conf to my PC's ip address and reset the px4 service. However, QGC is still unable to find the drone. Any tips on what I am missing to have QGC find the drone?

    As a further note, when the Flight Deck is connected by wire to the PC (USB to QGC), my PC locates and connects to the drone.


    Pinging computer IP:

    PC Microhard radio IP:
    VOXL Microhard radio IP:

  • Hi @Daniel-Ryu ,

    One thing I would recommend doing is setting up the voxl-vision-px4 service using voxl-configure-vision-px4. It's possible that voxl-vision-px4 is in a weird state and this can help reset it and flush out any issues.

    Another thing to check is to turn off all other networks on your PC side of things, i.e. WiFi and any other ethernet connections you may have connected. They can sometimes interfere with things depending on their settings.

    Let me know if this solution helps.

  • @tom ran voxl-configure-vision-px4 as per the instructions here and disabled all other networks. No change in situation. Since I can ping from the Flight Deck (using adb shell) to my laptop running QGC, I'm wondering whether the QGC connection service on the Flight Deck can even find the Microhard radio its connected to. Does this sound plausible? Let me know if there are any pictures/screenshots I can upload that would help diagnose this issue.

  • This is pretty broadly used, so maybe some configuration has gotten wonky. Can you please share which version of software you are using? https://docs.modalai.com/voxl-utils/#voxl-version

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