Sensor fusion / quaternion / absolute orientation


Sorry to cross-post on multiple forums, but no sure where exactly this fits in.

Is sensor fusion performed on the board?

Is there a way in Android app to get absolute orientation vector and log it? Using RPRO with Gyro.



  • There is no sensor fusion on the board.  The gyro chip only reports portrait/landscape, not orientation angles.
  • Hi, thank you for the reply. So what would be the best way to accomplish this? Should I pull the data on Android and fuse it there? Is it possible to use the NDK? Have you tried anything similar? Thanks.
  • Oh, sorry, I misread that. What you are saying is that there is no orientation vector, so essentially it would be impossible to do the fusion to find absolute orientation?
  • That is correct, the chip does not report an orientation vector.  The best you can do is compute rotation angles around the axis using the acceleration data but that would have to be done on your device, not the board.
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