Solar energy is clean as it does not emit any form of gases that harm the environment. The efficiency level of the best solar panel in the market nowadays alone is still considered low, but if there is a two-axis sun tracker controlling the solar panel, conversion efficiency is able to improve by about 40%. Difficulty arises when designing the mechanism of sun tracker that can provides high accuracy in the angle tilted by the sun tracker to keep the solar panel perpendicular to the direction of maximum sunlight intensity in order to maximize the current generated for charging...