MIRROR POSITIONING WITH ELECTROMAGNETS AND MAGNETOMETERS

A rearview assembly includes a mount and a main unit coupled to the mount such that the main unit is articulable on the mount by rotation about three perpendicular axes. First and second electromagnets are positioned within one of the mount or the housing and a first magnetic field sensor is positioned within the other of the housing and the mount. A processor selectively activates the first and second electromagnets for separate generation of a first magnetic field and a second magnetic field. The processor receives first magnetic field information related to the first magnetic field and second magnetic field information related to the second magnetic field from the first magnetic field sensor and determines a rotational position of the main unit in relation to the mount about each of the three perpendicular axes based on the first and second magnetic field information.