The Parallax Continuous Rotation Servo is ideal for robotics and basic movement projects. It is designed for continuous rotation and is easily interfaced with any Parallax microcontroller. This is the servo on the BASIC Stamp Boe-Bot, Arduino-based Shield-Bot, and micro:bit based cyber:bot robots.

The Parallax Standard Servo is ideal for robotics and basic movement projects. It can hold any position over a 180-degree range and is easily interfaced with any Parallax microcontroller.

Key Features:

Continuous Rotation servo:
- Bidirectional continuous rotation
- 0 to 50 RPM, with linear response to PWM for easy ramping
- Accepts four mounting screws
- Easy to interface with any Parallax microcontroller or PWM-capable device
- Very easy to control with PBASIC's or SX/B's PULSOUT commands
- Weighs only 1.5 oz (42.5 g)
Standard Servo:
- Holds any position between 0 and 180 degrees
- 38 oz-in torque at 6 V
- Accepts four mounting screws
- High precision gear made of the POM (polyacetal) resin makes for smooth operation with no backlash
- Weighs only 1.55 oz (44 g)

Specifications:

Continuous rotation servo:
- Power requirements: 4 to 6 VDC* , 15 -200 mA
- Communication: Pulse-width modulation
- Gear material: Acetal copolymer
- Dimensions: 2.2 x 0.8 x 1.6 in (55.8x 19 x 40.6 mm) excluding servo horn
- Operating temp range: +14 to +122 °F (-10 to +50 °C)
- Torque: 38 oz-in @ 6 V
Standard Servo:
- Power Requirements: 4 to 6 VDC*,
- Communication: Pulse-width modulation
- Gear material: Acetal copolymer
- Dimensions: 2.2 x 0.8 x 1.6 in (55.8x 19 x 40.6 mm) excluding servo horn
- Operating temp range: +14 to +144 °F (-10 to +50 °C)
- Torque: 38 oz-in @ 6 V