Arduino Uno Avr Atmega328 Microcontroller Based Dual Axis Solar Tracker Design

The paper presents a different approach for dual axis solar tracker design in order to capture much output power and energy of solar panel. The Arduino Uno AVR ATmega328 microcontroller is utilized as the main controller for the horizontal and vertical axis movement of solar tracker through servomotor. Command and instruction are compiled with C language programming to translate the breadth first search method prior to be uploaded into the Arduino Uno AVR ATmega328 microcontroller. The control mechanism by means of the dual axis solar tracker is to find the stable position of solar panel before the breadth first search algorithm calculates and records the maximum output power. The performance of the proposed design of solar tracker is tested under cloudy and clear sky conditions where the output power of solar panels is measured with and without solar tracker. The measurement results indicate that the maximum output power of solar panel can be reached 4-6 times much higher than the solar panel without solar tracker