Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Collapse
Brand Logo

ModalAI Forum

  1. ModalAI Support Forum
  2. General Questions
  3. No valid data from Compass 0

No valid data from Compass 0

Scheduled Pinned Locked Moved Unsolved General Questions
4 Posts 2 Posters 688 Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S Offline
    S Offline
    SMRazaRizvi
    Regular
    wrote on last edited by
    #1

    I recently flashed my Sentinel drone and calibrated the Compass, Gyro, and Accelerometer.

    All the Sensory data is Green, as can be seen below

    fffef22b-4d44-4449-a688-c82c121da4f2-image.png
    However, after the first arming, I'm continuously receiving Preflight Fail: No valid data from Compass 0 , not allowing me to arm and fly again, as can be seen in the QGC Logs below.

    a1b63573-45d0-4dfb-93e5-48bcaf6bc2bc-image.png

    Please help.

    Eric KatzfeyE 1 Reply Last reply
    0
    • S SMRazaRizvi

      I recently flashed my Sentinel drone and calibrated the Compass, Gyro, and Accelerometer.

      All the Sensory data is Green, as can be seen below

      fffef22b-4d44-4449-a688-c82c121da4f2-image.png
      However, after the first arming, I'm continuously receiving Preflight Fail: No valid data from Compass 0 , not allowing me to arm and fly again, as can be seen in the QGC Logs below.

      a1b63573-45d0-4dfb-93e5-48bcaf6bc2bc-image.png

      Please help.

      Eric KatzfeyE Offline
      Eric KatzfeyE Offline
      Eric Katzfey
      ModalAI Team
      wrote on last edited by
      #2

      @SMRazaRizvi Are you saying that you can arm and fly just fine but after landing you cannot attempt a second flight due to this error appearing? Does this happen every time you fly?

      S 1 Reply Last reply
      0
      • Eric KatzfeyE Eric Katzfey

        @SMRazaRizvi Are you saying that you can arm and fly just fine but after landing you cannot attempt a second flight due to this error appearing? Does this happen every time you fly?

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

        @Eric-Katzfey

        I figured that was because I was not getting the GPS signals inside the lab.

        I don't get the compass error if I try to fly outside.

        Eric KatzfeyE 1 Reply Last reply
        0
        • S SMRazaRizvi

          @Eric-Katzfey

          I figured that was because I was not getting the GPS signals inside the lab.

          I don't get the compass error if I try to fly outside.

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

          @SMRazaRizvi A compass (magnetometer) and a GPS receiver are two completely separate sensors. GPS reception won't affect the compass.

          1 Reply Last reply
          0

          Reading along? Create a free ModalAI Forum account to join in.

          With an account you can reply, ask your own question, get an email when a ModalAI engineer answers, and mark the reply that solved it. Your place in each thread is saved between visits.

          Questions about VOXL, Flight Core, ESCs and ModalAI drones are answered here by the engineers who build them.

          Register Login
          Reply
          • Reply as topic
          Log in to reply
          • Oldest to Newest
          • Newest to Oldest
          • Most Votes


          ModalAI
          Categories Recent Tags ModalAI.com Docs
          © 2026 ModalAI® · Accelerating autonomy for smaller, smarter, safer drones · Powered by NodeBB
          • Login

          • Don't have an account? Register

          • Login or register to search.
          • First post
            Last post
          0
          • Categories
          • Recent
          • Tags
          • Popular
          • Users
          • Groups