Rotation Sensor
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The V5 Rotation Sensor is an smart sensor to determine the angle bound by [0,36000) and the position in centidegrees, as well as the angular velocity in centidegrees / second. The sensor connects to the through a smart port, and functions similarly to a or .
The measurement component of the sensor is comprised of a Hall Effect sensor that measures the magnetic field of 2 magnets to track the absolute angle ([0,36000)) of the rotation sensor. The angle resets every full rotation of the rotation sensor. A chip inside the rotation sensor (a Cortex M0+) then keeps track of the total rotations which acts as the relative position measurement, which does not reset every rotation.
Alyssa Agarie (Former VEX Competitor)
Since the rotation sensor angle () is absolute, as it's based on the magnetic field generated, the angular position of the shaft will not reset when it loses power. However, since the chip loses power the position (), which is relative, of the rotation sensor is not tracked and it resets to zero every time the sensor is turned on.
(Purdue SIGBots)
