Good GPS but local and global position invalid

PX4 Autopilot
1

Hi all,

I’m struggling to understand why I cant get my drone to hold position. The flight log below shows relatively good GPS positioning accuracy, but the local position and global position are invalid.

https://review.px4.io/plot_app?log=c3046ab5-75e5-4470-9d25-d4e3137d45f6

Have I got something configured wrong, or am I doing something else wrong.
Any help is very welcome.
Cheers,
Isaac

2

Hi, your drone doesn’t have a magnetometer and this was mandatory for position estimation in older firmware versions. Please try the more recent 1.15 firmware release (or 1.16 alpha or directly main; this is bleeding edge, but quite low risk for standard multirotors).

Make sure to have EKF2_MAG_TYPE to “none” if you don’t have a magnetometer (this will allow you to switch in position mode after takeoff and initial horizontal motion).

3

Thank you very much! I’ll try to update the firmware and also try to add a magnetometer.