maemo.org - Talk - View Single Post - Accelerometer calibration

	Mandibela	2009-12-16 , 12:19
	Posts: 270 \| Thanked: 195 times \| Joined on Aug 2009 @ Finland	#5

Originally Posted by Jaffa

I'm going to add a Calibrate option to Attitude at some point, my initial thought was "save the values and subtract them from the current"; however better algorithms welcome :-)

Yes please! =)

I get 2.2 - 2.6 degs when my N900 is on a level surface with Attitude. I also tried 'accDisplay' aka 'Accelerometer Viewer' by cpscotti and it also gives me comparable error... so the internal calibration of the accelerometer is off.

On my MacBook I can also use the accelerometer/sudden motion sensor (as a seismogrpah - very nice http://www.suitable.com/tools/seismac.html ) and the devs have created a calibration tool also, very easy and fun to use btw.

After calibration the accelerometer is quite usable (on the MacBook).

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