Stepper motors
1) Digitaly controlled brushless motor that rotate a specific number of
degrees (a step).
2) Number of degrees (resolution) can be between .72 to 90 degrees. General
purpose steppers have a resolution of 15 or 30 degrees a step.
3) High precision, low torque.
4) Stepper motor control ICs are widely available which can control speed,
direction and position.

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