Abstract
A servomotor is an actuator which provides precise control of angular or linear position. It consists of a motor and a sensor for taking feedback. The servo motor is combination of four things: a DC motor, a gear reduction unit, a position-sensing device and a control circuit. The servo motor can be used for high technology like automation. Servos can be used in elevators, rudders, walking a robot, or operating grippers. The motor can be controlled with a PWM (pulse width modulator) signal. This chapter discusses the working of servo motor with respect to change in light intensity sensed by LDR, with the help of Scilab XCOS and Arduino I/O package.
Keywords: Arduino_1.1 package, Scilab.