Im building a test quad drone, with PixHawk 2.4.6, and I have a problem with all related with the altitude hold, li loites, poshold, althod, etc. Stabilize works ok.
I can see in the MP the altitude is too much wrong, I see the drone at 2 meters and MP is showing me -3 Meter. Never get the right altitude.
This is the flight log.
Em I missing something?
Have a look at your VIBES and especially the clipping.
This is a typical reaction you are seeing to excessive vibration and is one of the standard tests for early flights in AltHold to see if you get altitude variance.
Vibration levels are a bit high but not terrible. It may help to set GND_EFFECT_COMP to 1. The issue could be that the vehicle’s legs are very short and the barometer is getting a lot of interference after takeoff. We have a wiki page here.
thanks you guys, yes i have checked the vibrations, but I didnt know it can affect the baro,
I will try a antivibration bed for the pix and the gnd_efect_comp
I was have high vibration with one of my drones and it can’t hold altitude perfectly
according to wiki
Vibration levels below 30m/s/s are normally acceptable. Levels above 30m/s/s may have problems and levels above 60m/s/s nearly always have problems with position or altitude hold.
But crazy in altitude holding because of vibration is about 50cm to 1m
Vibration doesn’t effect the barometer it effects the accelerometers. They contribute to altitude stability.