Microcontroller Based Reversible Motor Speed Control System

Abstract

This system is based on the microcontroller based reversible motor speed control system. The sun tracking system uses a reversible motor to rotate the desire direction. A DC motor drives forward and backward direction to track the light. The H-Bridge motor control circuit switches the forward and backward movements of the motor. The two LDRs (Light Dependent Resistors) are used as input sensors. A microcontroller PIC16F877A determines the DC motor to rotate the forward or backward movement based on the Rule-Based system and PWM (Pulse Width Modulation). The PWM (Pulse Width Modulation) controls the speed sequence when motor run only in the backward direction to reach the certain position. The Rule-Based system used in this system to control the motor to rotate the forward and backward direction via the input sensors. The control system is implemented by microcontroller Assembly language.