For a good while now, I have had trouble with “Mode Change Failed” when trying to switch to Auto with Ardupilot armed. I have to disarm, switch to Auto and then rearm. I need to figure out this problem. I also have “Bad AHRS” a lot. I have compasses disabled because I had the same trouble Kevin has had getting them to work. I assume it is my mower’s large metal chassis and/or the engine spinning. Once I get into Auto, I have had good success with tracking as you see from my previous post. But it is frustrating getting this message.
Today I upgraded to ArduRover V3.4.1-rc1 and now when I switch to Auto and then arm, the robot takes off fast and basically out of control. I read the comments here Rover-3.4.0-rc1 released for beta testing! and assume this is sort of what is going on. Anyway, the main thing is I need to figure out why I am having the “Mode Change Failed”. I am uploading a log from today. Any help is greatly appreciated!
I’m not sure I the log file uploaded. It is also here: https://www.dropbox.com/s/t30jo3g6o6x3nea/00000022.zip?dl=0