SG90 Micro Servo Motor 9g

The SG90 Micro Servo Motor 9g is one of the most popular mini servo motors used in India for robotics, embedded systems, RC vehicles and DIY automation projects. This SG90-type servo combines a DC motor, reduction gear train, feedback potentiometer and control electronics in a tiny 9g package, allowing your microcontroller to command a repeatable shaft angle instead of simply turning a motor on or off. It is a practical choice when you need controlled movement in a small space and at low cost. The servo is controlled using a standard hobby PWM signal, typically around 50Hz. By varying the pulse width, an Arduino, ESP32, Raspberry Pi Pico, servo tester or RC receiver can position the output shaft across approximately 0 to 180 degrees. Power is supplied separately through the red and brown wires, while the orange/yellow signal wire connects to the controller PWM pin. For reliable operation, especially under load, use a regulated 5V supply capable of providing peak current rather than powering multiple servos directly from a microcontroller board. Typical applications include mini robot arms, walking robots, RC aeroplane rudders, boat steering, camera pan-tilt brackets, ultrasonic sensor scanners, small grippers, smart dustbin lids, animatronics and educational projects. The SG90 is best suited for light-duty mechanisms because it uses plastic gears and is designed for compact hobby motion rather than heavy industrial actuation. Each unit is generally supplied with a pre-attached 3-core servo lead and a set of plastic servo horns/arms with a mounting screw, making mechanical installation straightforward. Pin note: brown is GND, red is +4.8V to 6V, and orange/yellow is PWM signal. Compatible with most Arduino Servo library examples and standard RC servo controllers.