Feedback 360° High Speed Continuous Rotation Servo
The Parallax Feedback 360° High Speed Servo provides the functionality of a light-duty standard servo, continuous rotation servo, high-speed servo and encoder in one convenient package.
Like most continuous rotation servos, the Feedback 360° is controlled by a 50 Hz pulse-width-modulation signal. A unique feature is a return signal line from an internal Hall effect sensor system that provides digital angular position feedback.
Utilizing this feedback signal, your application can make the servo to turn to and hold any angle, much like a standard servo but with an unlimited range of motion. Or, rotate the servo continuously at a controlled, verifiable speed - up to 120 RPM - as a robot drive motor. The control signal response is nicely linear across the speed control range.
Bidirectional, continuous, feedback-controllable rotation from -120 to 120 RPM
PWM positional feedback across entire angular range
Internal Hall effect position sensor, which is not subject to wear or sensor deadband as are potentiometer-style feedback systems
No need to manually "center" the servo
3-pin ground-power-signal cable plugs onto the Activity Board's 3-pin header
Separate single wire with female connector supplies feedback to a separate I/O pin
Fits our Small Robot Wheel and Tire and Servo Wheels
RPM: +/-120 w/feedback control, 140 max (+/- 10) @ 6 V, no load
Case: Nylon & fiberglass
Spline: 25-tooth, 5.96 mm OD
Peak stall torque @ 6 V: 2.2 kg-cm (30.5 oz-in)
Voltage requirements: 6 VDC typical, 5-8.4 VDC max range*
Current requirements: 15 mA (+/- 10) idle, 150 mA (+/- 40) no-load, 1200 mA stalled
Control signal: PWM, 3-5 V 50 Hz, 1280-1720 µs
Control signal zero-speed deadband: 1480-1520 µs (+/- 10)