Automatic watering system using solar PV tracking

Abstract

This paper presents the design of automatic watering system using sun tracking as an energy source .The objective is to design the automatic watering system for fruits grown in both areas without electricity. The solar panel can be moved along the direction of the sun cover an altitude - azimuth dual axis as an energy source of the system. The 20 longan trees are used in the experiment. The DC motors and the solar panel is controlled and rotated by the microcontroller to the position of the maximum light intensity. The watering system section will use a technique to measure the soil moisture sensors ECHO2-20 with real time PC based monitor system by Visual Basic Studio. As for the experiment results, it was found that the energy stored by the developed solar tracker increased to 17.72 percent, in comparison to a solar panel fixed installation. The watering appropriate soil moisture content is 12 percent and stops at 25 percent, resulting for the garden moderators to save time and labor.