I am trying to make one of my apps, Tilt Theremin, more interesting by making use of the gyroscope sensor. As far as I have understood, one has to use it in combination with accelerometer and compass to get accurate reading of pitch, roll and yaw.
I have watched this talk: http://www.youtube.com/watch?v=C7JQ7Rpwn2k According to that, the only thing needed is to use the virtual sensor of TYPE_ROTATION_VECTOR. I tried that on my Nexus S, and it is very sloppy and seems heavily lowpass filtered. I read on some other post that TYPE_ROTATION_VECTOR does not currently use the gyroscope, at least not on the Nexus S and Motorola Xoom. So here are the questions: a) Will the virtual sensor TYPE_ROTATION_VECTOR be updated to use data from gyroscope, and will I be able to use that update on my Nexus S? Or is it some limitation in hardware? David Sachs in the video talks about the fusion algorithms being done in hardware, so maybe mine has no support for that? b) Is there som pseudo- or real code out there, which can show me how to do it in software here and now? I have (appearently) managed to implement a Complementary Filter, but that does not take the compass into account (only acc and gyro), and I seem to get much of the same data as I did using just the accelerometer. I can't find any code on the net which takes gyro, accelerometer and compass into account to get similar results as in the video. I see there has been opened an issue on this, but there is not much activity: http://code.google.com/p/android/issues/detail?id=17780 Please help me with this! It would be nice to make developing apps using the gyroscope (more) feasible on the Android platform! Thanks -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
