Author(s): Dr.Shaik Meeravali, Suthagar S
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol.1 - Issue 6 (August- 2012)
Abstract? The objective of this project is to design and develop an Automatic Solar Tracker Robot (ASTR) which is capable to track maximum light intensity. The solar tracker system that follows the sun direction for producing maximum voltage out is mounted on the robot and the DC motors utilizes this energy for robot movement. The robot base can be controlled through computer using wireless Zigbee technology. The efficiency of the solar energy conversion can be optimized by receiving maximum light on the solar panel. The main components of the robot consist of two PIC16F877A microcontroller, LDR sensors, DC motors and digital compass. This robot is programmed to detect sunlight by using Light Dependent Resistors (LDR). DC motor aligns the solar panel to receive maximum light. Digital compass is used to detect the position of the robot. Two modified DC motors will move the robot base in all directions and another two DC motor is used for tracker- base and tracker. It keeps the tracker-base always in north-south direction and tracker in east west direction. If tracker ? base is not in North-east direction buzzer will be activated to produce sound. The digital compass fitted on the robot senses the direction and this information is passed onto the PIC microcontroller. LCD used to display the measured voltage generated from solar panel. The robot is programmed using Embedded C language.
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