Stand Alone Self-sufficient Dual Axis Sun Tracking System and Charge Controller

This paper explains the design of an efficient dual axis sun tracking system using a complex algorithm to calculate the azimuth and elevation angles of the sun across the sky based upon real time feedback. The algorithm function was written in C/C++ programming language and integrated along with multiple other functions which were required to operate the electromechanical structure. Detailed explanation of the analogue charge controller is also included. This paper highlights the significance of the self-sufficient system and provides analysis of the experiments conducted using the prototype model. Furthermore, the proposed prototype consists of an Arduino UNO microcontroller, real time clock module, motor drivers, stepper motors, nine volt solar panel, a lead acid brick battery and the charge controller as its main components. This system can be put to multiple uses in order to harvest maximum renewable energy from the sun as well as be used as educational material.