SG90 360° Continuous Rotation Micro Servo

Product Overview

The SG90-360 from Pro Tronix offers a unique twist on the standard micro servo. While it shares the same compact 9g footprint and 3-pin interface as the original SG90, the internal physical limits and potentiometer feedback have been modified.

Instead of moving to a specific angle (like 45° or 90°), sending a PWM signal to this servo controls its direction and speed of rotation. This makes it an incredibly simple and cost-effective way to drive the wheels of a mini-robot without needing a separate H-bridge motor driver. It is the ideal choice for small “line follower” robots, rolling toys, and rotating display stands.

Technical Specifications

Key Features

• No Motor Driver Required: Connects directly to an Arduino or ESP32 pin just like a standard servo, saving space and reducing wiring.

• Speed & Direction Control: Easily program forward, backward, and stop states by adjusting the pulse width in your code.

• Compact & Lightweight: The small 9g size is perfect for weight-sensitive mobile robots and tabletop gadgets.

• Standard Mounting: Compatible with all standard SG90 3D-printable wheels and mounting brackets.

Common Applications

• Miniature Wheeled Robots: Creating small, 2-wheel drive autonomous robots or line followers.

• Rotating Displays: Powering slow-turning platforms for jewelry or product photography.

• Winding Mechanisms: Useful for small pulley systems or automatic curtain/blind prototypes.

• Art Installations: Adding continuous spinning motion to kinetic sculptures.

   

💡 Programming Tip: > Using the Arduino Servo library:

• write(90) usually stops the motor.

• write(180) rotates it at full speed in one direction.

• write(0) rotates it at full speed in the opposite direction.

  (Values near 90 can be used to fine-tune the “stop” point if the motor creeps.)

You can see our available motion control products from here: Motors | Pro Tronix