ARM7 Based Advanced Four Quadrant Sun Tracking System on Wheels with Effective power Conservation

In today’s high-tech environment, energy has become the impetus for socio-economic development. As a free, nonpolluting, inexhaustible, renewable energy, solar energy is ideal for generating electricity. Currently, generating electricity by solar energy is inefficient and costly. This paper is a result of prototype our main project which mainly focuses on how to improve its efficiency to develop an automatic solar tracking system which will keep the solar panels aligned with the Sun in order to maximize in harvesting solar power using ARM7 microcontroller. The system tracks the maximum intensity of light. When the intensity of light is decreasing, this system automatically moves too and fro to change its position and direction to get maximum intensity of light. LDR light detector is used to trace the coordinate of the Sun. While to rotate the appropriate position of the panel, a DC geared motor is used. And also tracking system can be moved in any position where ever there is sun rays’ falling on the surface of building or ground. The relay driver is used to show how to conserve the electrical energy effectively when actually there is no need of electricity. Keyword four quadrant, photovoltaic cells, renewable energy, LDR sensors, ARM7 microcontroller.