Yaw values too off even after calibration

[danendrasingh]

I am trying to get data from my razor imu m0- 14001 for the past week. I performed multiple calibrations as mentioned in the official hookup guide. When I launch the ros-pub.launch file, i get a ros topic imu/data. I used this data to convert the quaternians into roll, pitch yaw using tf::Matrix3x3 m(q) and then extracting RPY values from m using m.getRPY()
Unfortunately I am not getting zero yaw along any direction. also the values seem to drift little over time. Can someone please address this issue?

[lebarsfa]

I remember that at some point I got several strange behaviors when playing with some options of the IMU, ensure you built the firmware and all its dependencies with the recommended versions. See also the discussion on Razor-AHRS/razor-9dof-ahrs#57. As I say there, really ensure that you made your magnetic calibrations carefully and in a place far away from any metal...