Servo motor is widely used by many engineering students and hobbyists in various applications. One major application is Robotics. Servo motor is used because it is easy to operate (PWM technique). It can maintain 90%of its rated torque at high speed. Sometimes a servo can provide up to twice its rated torque for short duration. Also, a servo operation is vibration-less and is free of resonance issues. This article is about interfacing a servo motor with Arduino Mega series board.