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Parallax Continuous Rotation Servo KickStart (#900-00008)
What It Can Do
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High-torque geared motor interfaces easily to wheels and other mechanics
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Speed control of motor from slow to full, in both directions
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Motorizes most anything, such as a robot or model car
Standard servo motors made for hobby radio-control are designed to spin in a limited circle. The
Parallax Continuous Rotation (CR) Servo has the same size and shape as a standard servo, but
it’s made to keep turning clockwise or counterclockwise.
The control signal for a servo is a stream of pulses. The exact duration of these pulses, in
fractions of a second, is what determines the position of the servo. Each pulse is from 1300 to
1700 microseconds (μs) in duration — one microsecond is one millionth of a second. The pulses
repeat about 50 times each second (once every 20 milliseconds).
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1300 μs: Turn clockwise
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1500 μs: Stops the motor
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1700 μs: Turn counterclockwise
