MultiWii

I upgraded one TRIcopter from v1.7 to the latest dev version from the repository (r190). It was not flyable anymore with the old settings. I had to substantially lower the P-values for pitch and roll. Also had to lower the Level-P from 10 to 5 and the Level-I from the former .040 to .020.
Is this a known issue? Should the default values be adapted? Or is it just my setup that is too jittery with vibrations?
Hamburger

It's strange, it should be the same settings

Hi,

There is however one main difference:
The gyro accuracy is improved between the last devs and the 1.7 and we take more gyro bits in the calculation.

I noticed the same thing with a WMP only conf (clone). And I suspect it's a little bit worse because this WMP is quite noisy.
But with a good sensor (ITG3200 for instance), it's better.

ok. That explains the difference. I upgraded two of my copters, one to r187 and the other to r190. Both need downsizing of roll/pitch P values and PI level values.One has freeimuv01 (ITG3200, ADXL345, HMC5843), other has wmp-clone (itg655) and bma020.

Thanks, Hamburger

Hi everyone,
I have a similar problem (WMP + NK both original), but only in a stable mode.
With ITG3200 + BMA020 it is OK.