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.
