Servo Motor SG90 (360 Degree Rotation)

Servo Motor SG90 (360 Degree Rotation) Overview

The Servo Motor SG90 (360 Degree Rotation) is a compact and versatile continuous-rotation servo designed for robotics, automation and hobbyist applications. Combining small size, low weight and PWM-based control, the SG90 is a popular choice for beginners and advanced makers who need reliable rotational motion with simple integration.

Key Features

• 360-degree continuous rotation: Full rotation capability for driving wheels, turntables and conveyor elements.
• Compact and lightweight: Approximately 9g and a small footprint for space-constrained designs.
• Durable build quality: Constructed with reliable materials for long service life in hobby and educational projects.
• Easy PWM control: Controlled via standard PWM signal, compatible with Arduino, Raspberry Pi and most microcontrollers.
• Low power draw: Efficient operation within 4.8V to 6V suitable for battery-powered systems.

Specifications

• Operating Voltage: 4.8V – 6V
• Torque: Up to 1.8 kg/cm (at 6V)
• Speed: 0.12 sec/60° (at 6V)
• Weight: Approximately 9g
• Dimensions: 22.2mm x 11.8mm x 31mm
• Signal Type: PWM control
• Rotation: 360-degree continuous

Wiring and Control

The SG90 uses standard three-wire connections: power (VCC), ground (GND) and signal (PWM). It accepts PWM control pulses from microcontrollers such as Arduino and Raspberry Pi. Typical integration suggestions:

• Use a stable 4.8V to 6V supply rated for your number of servos to avoid voltage drops.
• Connect signal to a PWM-capable GPIO pin and use the appropriate library (Servo library on Arduino) to generate control pulses.
• For multi-servo systems, use an external power source or servo driver to prevent brownouts on your microcontroller.

Common Applications

• Wheeled robots and smart cars for continuous wheel drive
• Pan-tilt camera mounts and surveillance rigs
• DIY robotics projects and educational STEM kits
• Conveyor and small automation mechanisms
• Prototyping and hobbyist automation

Package Contents

• 1 x Servo Motor SG90 (360 Degree Rotation)
• 3 x Assorted servo horns with screws

Tips for Best Performance

• Calibrate your controller code to set appropriate neutral and speed values for continuous rotation servos.
• Avoid prolonged stall conditions to prevent overheating and reduce wear.
• If you need precise positional control instead of continuous rotation, use a standard positional SG90 variant.
• Secure mounting and proper servo horns will improve torque transfer and reduce mechanical play.

Note: Images are for illustration purposes only. Actual product design may vary slightly based on availability.