In the last years, the need for different kinds of energy, pollution, using fossil fuels and reduction of current energy sources have pushed people to search for new technologies and renewable energy sources. Therefore usage of sun has shown a noticeable increase.Sun is preferrable in a lot of fields because it is cheap, easy to convert into other energies and also it can easily manage with the solar panels. Sun tracking system is one of the great usages of sun. In order to sense the intensity of light light Dependent Resistors have been used. Basically this system works according to position of the sun