Attitude Estimation Algorithm to GPS Navigation INS13



When I Set Attitude Estimation Algorithm to GPS Navigation INS13,

The yaw right to start is erratic and start to fly is not possible ??


quad copter


Fredrik Arvidsson
March 29, 2017, 9:40 AM

To be able to even assess this bug report there is a lot more information needed. We need to have information about what hardware (flight controller and GPS) that is used and the full configuration of the board and GPS.

March 29, 2017, 9:50 AM

I suggest using if unsure if it's a bug.

Bug report should contain accurate information on

  • Software used including version

  • Hardware used

  • UAV config file exported

  • Steps to reproduce

Something that can't be reproduce can't be fixed.

March 30, 2017, 12:42 PM

Hi Thanks for the reply , yesterday I set gps navigation ins 13 , seems ok as the yaw start the motors , I move the drone 10meters from the point and same issue , I need to reset or restart the board , and aftter some tries , I could start the motors . when issue appear , red flag on ATTI and STAB , the GPS is well , this could be the gyro not transmit ?? or else , a friend of mine as the same issue with similar board and soft ?? on other drone he move the magnet on the rear , this solve issue ?? is this a magnet issue ?
Thanks for the replies .
ps/if you need , I could send the UAV config file ?

Eric Price
July 27, 2019, 9:20 PM

from the sound of it, its a magnet issue. the only way to find out which way the nose is pointing is using a compass. if you have strong magnetic fields on your copter (like running 20A+ through copper wires when your engines are on) then the compass skews and the algorithm gets confused. There are a few techniques on the internet on how to build a quadcopter which does not make strong magnetic fields. twisting the wires is one solution, put the flight controller/compass further away from the power distribution board, etc… but every quad is different. it helps if you look at the raw sensor values of your magnetometer sensor (for example in scope gadget in GPS) and what happens when you increase throttle.








Affects versions