Am Mi 23. Januar 2008 schrieb Sébastien Lorquet: > I'm not sure a magnetic sensor is useful when you have a GPS, because a GPS > can give you a heading as soon as the measured velocity is not zero! You get heading of *velocity vector*, NOT heading of *device*! So for Andras' intended use, this is worth nothing. It works only for objects like a car that supposedly are not able to move in a direction different to "straight forward". I even guess if you drive backwards with your car, the map on those navi-units will rotate top down.
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