This is a discussion re the ArduCopter-3.1 AutoTune feature. A place for people to report successes and failures, ask questions and get answers.
The AutoTune wiki page is here.
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Great. I was thinking it might use the GPS position to see if the tuning was reacting well. Even doing it this way, I suppose it is better to do it in no wind to get a better result?
That AutoTune flight mode is really only meant to be displayed with ArduPlane. In ArduPlane it is a flight mode, and in ArduCopter it is a function that can be invoked while in AltHold.
I'm not sure you can invoke it from the ground station, my understanding is that ArduCopter's AutoTune can only be invoked via Ch7/8 :(
Sorry! If someone has different experience I'd love to hear it.
Brad,
Yes, you're right it's been turned into a flight mode in AC3.2. There's a slight difference in how it's started in that when called from ch7/ch8 it uses autotune_start() and autotune_stop() while if called from ch5 flight mode switch it uses autotune_init().
There's some extra code in the autotune_start() function (i.e. ch7/ch8) which backs up the current gains so I think it won't work well if it's triggered from ch5.
This is all more by accident rather than a conscious decision though. AC3.2 had so many other changes we didn't put any effort into making it work from ch5. It should be possible though.
Brad,
A pull request would be great. Against master please!
Ha! Cool there you go... I never even looked! :)
Randy is it possible to have some flight modes on channel 6 ? like simple and auto or camera trigger rather than all those params we will not likely use ?
Regards Reuben
Reuben,
At this moment it's not possible but it's on the to-do list (with 160+ other issues)...
In all my testing and discussion with Leonard, it is still invoked by Ch7/8 in 3.2. I suppose it would be cool as its own flight mode, but I haven't noticed it as an option yet.
oops double post
Hello All,
I have a Tarot Pro FY680 with a Pixhawk. Today while attempting to do an autotune, it finished the roll portion then during the pitch portion it all went bad. After pitching normally several times, the hex suddenly acted as if it was given full forward and it flipped at least 6 or 7 times as it went from about 25 feet to zero. I attached a log and hope someone can give me an idea as to what happened?
Barney Liftoff
32.BIN
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