Micro Servo Motor (360 Deg / Continuous Rotation)
Price in Singapore Dollars, including 8% GST of $0.52
This is a micro-sized servo built specifically for continuous rotation. It is light and portable, a little bigger than 5 cent coin. It works at 3V voltage and uses pulse width to adjust speed of the servo rotation, which also can be used to make small robot modules, mechanical arm modules and intelligent car modules.
The servo can be controlled using a direct connection to a single microcontroller I/O line without any additional electronics, which makes it a great miniature actuator for beginner robotics projects; just throw on a pair of wheels and your robot is ready to roll!