The FS90R is a micro servo motor designed from the factory for continuous rotation (360°). Unlike standard servomotors, it rotates continuously in forward or reverse according to a PWM signal rather than being positioned at an angle; the width of the signal determines the rotation speed and direction. It operates between 4.8V and 6V and has the same compact dimensions as the SG90. It can be controlled with Arduino and ESP series boards using the standard servo library. It is widely preferred in wheeled mini robots, belt systems and mechanical assemblies that require continuous rotation.
