Hello, i'm new with an APM2 and would like to know how to diagnose a Yaw problem with logs.
What logs do i have to activate ? Which value to check ...
In fact, i would like to know if it's possible with logs to analyse the PIDs settings
and if we can find what is wrong on settings by this way.
Thanks a lot for any informations.
Replies
Hello, now i have raw datas and can log Gyro X,Y,Z and Acceleration X,Y,Z
but what can i do with those datas to analyze the good/bad behaviour of my setup ?
...
Thans to Redemptioner, i had a response ( On tuning guide post ).
I wil ltry to add RAW datas on logs and see if it helps.
Sorry to "bump" the message but anyone has informations or links on how to analyze logs about bad parameters settings on Yaw or any other channel ?
Thanks.
Anybody knows how to analyze CTUN logs or else ?
Happy new year to anyone passing by here ... ;)
Hello, i've just found this on the wiki : http://code.google.com/p/arducopter/wiki/AC2_Datalogging
It looks like the CTUN logs are able to give datas on gain loops.
How can i use these CTUN logs to check gains ?
Here is a screenshot of my CTUN logs : http://i11.servimg.com/u/f11/11/72/78/09/logsct10.jpg
You'll want to examine the I terms if you want to see issues with Yaw.
Yaw however is pretty easy to analyze without logs. If you set STB_YAW_P to 0 you will have no Yaw control. when you take off you'll probably start spinning indicating a frame is out of balance. Adjust your frame until your motors are all perfectly straight. Your copter should not spin on its own with STB_YAW_P 0.
jason