yaw stability

hello everyone :grin:

i use this 6050 card : http://ieee.free.fr/ardui/mpu.jpg

and i see that YAW value is not fix at the beguining, YAW move slowly 5 or ten second before stop... rol and pitch seams to be ok..did you see that ? have u an idea about what it came from and how to correct this..?? :roll_eyes:

roll and pitch can be controlled by knowing which was is "down", it is the direction of gravity which is detected.

to know yaw, you need some kind of compass.

michinyon: roll and pitch can be controlled by knowing which was is "down", it is the direction of gravity which is detected.

to know yaw, you need some kind of compass.

Or gyro module?

Hello dr_no, Are you using the Arduino library or another one like Jeff Rowberg's? Jeff'DMP, once detects the yaw values as drift rather than movement, it decreases the jaw value for abour 20-30 sec before stabilize (normally from 30 to zero). Remember that jaw from gyros will always drift. If you want a stable jaw you will need a magnetometer but then you will have to deal with magnetic external interference. Regards!

8) yes...i do use the Jeff Rowberg's lib..thank u very much for this note... i understood now...

thanks to all of u.. best... :grin: