anyone have any experience with trying to make returns to 3dr?
i have the APM 2.5 and it is pretty defective... not sure if this is a fluke or just poor design though.
i noticed that in loiter my quad would just climb and climb and climb. thought maybe i could fix it by tuning PIDs and isolating vibrations (i have the F450 frame so its pretty noisy), but this is not the case.
i tested it with all motors off simply connected to my laptop with the usb cable and left it sitting on a table outside for about five minutes and the altitude reading steadily dropped all the way down to about 176m from 197m before i disconnected and came back in.
obviously this makes any sort of auto functionality completely unusable and i am lucky i did not watch my quad fly off into the distance. has anyone else encountered this defect? and if so were you successful in getting a refund?
another thing i noticed is that when i tilted the quad at all the altitude would jump around by +/- 5 meters or so suggesting that its a gps issue. i have the mediatek 2.0. but pos hold works great so im not buying that a ublox would solve anything.
it seems that there is no way to switch to barometer only readings? not sure if this would help either, but seems like maybe it could...