Placing the breadboard with BMI160 to horizontally(remapping axis)

[brightproject]

I use such a board in the device

Based on examle code

only placing it not horizontally, but vertically.

How to remap the axes, I did not find another way how to do remapping through Bosch software.

I pass the data through the Madgwick filter and get the roll, pitch and heading angles at the output. But if I use this data when the board is in a vertical position, I have very small movements, due to the lack of axes. But if I use the received data for processing and visualize them using the transformation matrix, then all rotations of the body are normally performed.

As far as I understand, there are two ways to solve the problem with the orientation of the axes:

1. changing raw data directly in the Bosch sensor

2. application of the transformation matrix, but this requires the computing power of the microcontroller Unfortunately, I did not find working examples with axis orientation for BMI160. I try apply calibration offsets also

   BMI160.autoCalibrateGyroOffset();
   
   BMI160.autoCalibrateAccelerometerOffset(X_AXIS, 0);
   BMI160.autoCalibrateAccelerometerOffset(Y_AXIS, 0);
   BMI160.autoCalibrateAccelerometerOffset(Z_AXIS, 1);

   While I do not understand the functions autoCalibrateAccelerometerOffset and autoCalibrateGyroOffset well enough, it seems to me that it should set the value of accelerometers and accelerations to zero when the board is placed in the desired position (on its side, upside down, at an angle) and start counting from a calibrated "point". Or am I misinterpreting the autoCalibrateAccelerometerOffset and autoCalibrateGyroOffset functionality?

[brightproject]

[Solution](https://github.com/peterashwoodsmith/ArtificialHorizon/issues/1#issuecomment-1676422471