I am running 2.91 on my apm 2.5 with a MediaTek gps (the small1 the one suppied with the 2.5 board when they first came out)in my quad .
in stabilize it works a treat . But today i tried the loiter which was very erratic .Then i tried Auto .the quad went to the 1st way point ok maybe a little low (but i am guessing).then onto the second way point gradually getting lower until crashing into the ground softly.
I tested RTL the day before and all seemed to work well .
Any ideas ? is it the GPS ?
Is your barometer sensor sufficiently shielded from the wind?
my apm2.5 is in a case with the foam installed.
i didnt try altude hold yesterday , but the day before i did and it worked but did
drop and rise a little , maybe half a meter either way.
any more ideas welcome ..
hi richard .props are balance .
i havent got any vib damping on apm , other than double side 3mm tape.
i did do another altitude test today . Which was disapointing that it was well out . height would rise
and fall by upto 3-4 meters.
If you know any links on how to check logs ,it would be welcome.
thanks richard for the link.
i will start again (quad setup) and follow the advise .
I have also order some foam for vibration damping..
i will let you know how i get on , in a day or two as the weather here as change for
the worse .
cheers again darren