PENGATURAN KECEPATAN MOTOR DC PADA ROBOT LINE FOLLOWER MENGGUNAKAN PULSE WIDTH MODULATION (PWM)

Abstract

DC motor speed adjustment can be done by using pulse width modulation method
(PWM) that is by giving DC average voltage on DC motor by adjusting its pulse
width. In this research the method is used to determine the speed of DC motor
applied to Line Follower Robot. Setting the speed of DC motor rotation is
controlled through the position of the line sensor that occupies the path. In
addition to the PWM method the speed of the robot can adjust the lane or straight
path. If the path turns then the robot will reduce the speed of its DC motor rotation.
Conversely, if the path is passed straight then the robot speed rate at maximum
conditions. The robot is designed using 5 line sensors that use Infra red reflector
sensor module with TCR5000 type and Arduino Nano microcontroller as
controller. Then to drive a DC motor using L293 chip, because with this chip the
movement of the robot can be arranged easily through Arduino Nano. After
applying the motor speed control algorithm DC with PWM, then the robot can run
more stable even though through a path