You can make a compass using the magnetometer, however it must be carefully calibrated to be useful, and may not work if your robot is near iron-containing or magnetic materials.
See this post: Correcting the Balboa magnetometer
You can make a compass using the magnetometer, however it must be carefully calibrated to be useful, and may not work if your robot is near iron-containing or magnetic materials.
See this post: Correcting the Balboa magnetometer