I have not had luck with versions past 2.6 until I loaded 2.7.2 Epsilon - WOW - the twitches are gone!
Even with default pids ( apm2, ublox, quad) flying was as smooth as can be. I did up Alt Hold P to .8 and thrust rate P to .6 because default let the copter sink when I turned on alt hold, but upping these values has fixed that - the hold is very responsive and will track terrain exactly.
I really liked 2.6 and ran many missions with good luck using it. I kept thinking that the next version would probably just have minor differeces. I was wrong - Jason and crew have raised the bar another order of magnitude!
For instance, here is a little 6 waypoint mission run several times under 2.6-
It hits all the waypoints and stays fairly close to the path. I thought this would be hard to improve, but now the same mission with 2.7.2 Epsilon-
Now it turns sharply and is amazing to watch - it is a robot with a real purpose now. The landing accuracy is almost scary. Watching it run at night as the leds streak across the sky is a rush.
One more round of applause for the team!
Replies
John are you flying a stock 3dr quad?
Awesome test report! Many thanks for sharing that. The dev team is just working on the best default param settings for standard frames, and then I think we'll be ready to push it to the MP as a public release.
Cool stuff. I've been very happy ever since 2.6 honestly. This thing is very solid now. There's a lot of people who will never buy it, thinking that dropping $1000+ on something closed source is better. Too bad for them.
Now if I can just get the darn Trad Helis working better! The flight code is ready, we just need the AHRS to be more vibration resistant.
John, what was the wind doing between the two missions?
The 2.7.2 is very impressive, I'm looking forward to trying it.
Dan
I basically had the summer off and spent a lot of time building a flash simulator so I could work through every detail of the higher level flight code.
That and the work Randy, Tridge, Robert, etc did on the internals. It's been a great effort.