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« on: September 23, 2014, 10:00:07 PM »
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Hello,

This is the first time i am using APM. After calibrating accelerometer and compass yaw value must be nearer to zero. but it is showing 298 deg.
What can be the possible reason? My compass data is ( 257, 20, 7 ).

Thank you.
Yaw.jpg
APM yaw data error
* Yaw.jpg (69.39 KB, 800x432 - viewed 273 times.)
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« Reply #1 on: September 23, 2014, 10:13:22 PM »
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Magnetometer is facing wrong direction.
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« Reply #2 on: September 23, 2014, 10:14:40 PM »
devangflyer
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Sir , you are using mission planner , please use apm planner instead of it .
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« Reply #3 on: September 23, 2014, 10:32:41 PM »
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Quote from: satyagupta on September 23, 2014, 10:13:22 PM
Magnetometer is facing wrong direction.

Sir I am using on board compass. And the quad is on the ground.
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« Reply #4 on: September 23, 2014, 10:36:14 PM »
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Quote from: devangflyer on September 23, 2014, 10:14:40 PM
Sir , you are using mission planner , please use apm planner instead of it .

I have tried that too.  Should i calibrate both the sensor again?
yaw APM.jpg
Re: APM yaw data error
* yaw APM.jpg (73.83 KB, 800x431 - viewed 204 times.)
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« Reply #5 on: September 23, 2014, 10:41:02 PM »
devangflyer
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Ok , do one thing , go to initial setup , compass , in the middle there would be a option for rotation , set it to 180 degree yaw . Also if you are using external compass , set it to 180 roll+yaw and it should work fine
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« Reply #6 on: September 24, 2014, 09:16:20 AM »
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If you have not calibrated calibrate it again. But its better to use a board with external compass
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« Reply #7 on: September 24, 2014, 09:47:41 AM »
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Quote from: satyagupta on September 24, 2014, 09:16:20 AM
If you have not calibrated calibrate it again. But its better to use a board with external compass

Thank you sir.
do you think it'ld be the the reason for flipping over of the quad?
http://www.rcindia.org/multirotors/first-quad-s500-frame/msg197737/#msg197737
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