In this chapter, the reader is introduced to interfacing of servomotors with
8051 microcontrollers. After completion of the chapter, the reader should be
able to understand
• How the servomotor is diff erent from a stepper motor or a DC motor.
• How does the servomotor works.
• How to interface a servomotor with 8051.
23.1 | Introduction
Imagine that you are fabricating a robot and presently designing its elbow joint. is joint would be off ering
only one degree of freedom and rotates through a maximum angle of 180°
(Fig. 23.1). If a DC motor or a
stepper motor is fi tted to perform this duty, it would ...
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