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

ModalAI Forum

  1. ModalAI Support Forum
  2. VOXL 2 and VOXL 2 Mini
  3. Loss and gain of altitude of in position mode flight

Loss and gain of altitude of in position mode flight

Scheduled Pinned Locked Moved Unsolved VOXL 2 and VOXL 2 Mini
voxl-2
2 Posts 2 Posters 612 Views 1 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.
  • Tamas Pal 0T Offline
    Tamas Pal 0T Offline
    Tamas Pal 0
    Regular
    wrote on last edited by
    #1

    I am using flight core as external flight controller with voxl2. Additionally, it has a range finder as primary sensor to augment the altitude data. I have observed that when I move forward with throttle at 50%, it is gaining some altitude and come reverse (along negative x axis w.r.t body frame axis ) it is loosing altitude. The gain and loss of altitude is around +-0.2m. It is not a sensor issue, as during flight the changes in altitude are visible in mavlink inspector in distance sesnor segment and as soon as I stop giving pitch or roll input (throttle always at 50%) it comes back to its correct altitude. This phenomena is only observed when the quad is in motion. I have set the offset parameters with respect to cg for both the flight-core and range finder. But, I am still observing this issue. How to solve it?

    Eric KatzfeyE 1 Reply Last reply
    0
    • Tamas Pal 0T Tamas Pal 0

      I am using flight core as external flight controller with voxl2. Additionally, it has a range finder as primary sensor to augment the altitude data. I have observed that when I move forward with throttle at 50%, it is gaining some altitude and come reverse (along negative x axis w.r.t body frame axis ) it is loosing altitude. The gain and loss of altitude is around +-0.2m. It is not a sensor issue, as during flight the changes in altitude are visible in mavlink inspector in distance sesnor segment and as soon as I stop giving pitch or roll input (throttle always at 50%) it comes back to its correct altitude. This phenomena is only observed when the quad is in motion. I have set the offset parameters with respect to cg for both the flight-core and range finder. But, I am still observing this issue. How to solve it?

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

      @Tamas-Pal-0 That sounds like a good question for the PX4 community. We don't have any experience flying with a distance sensor but I'm sure others in the PX4 community do this all the time.

      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