This paper describes the design of solar powered automatic irrigation system which increases the yield in the irrigation system of rural areas. The main goal is to design and implement a solar power system using field programmable gate array (FPGA). In our project soil moisture sensor is used to detect the moisture level of the soil. Measuring soil moisture is important in agriculture to help farmers to manage their irrigation systems more efficiently. This enables the farmers to use less water to grow a crop, and increase yields and the quality of the crop by better management of soil moisture during critical plant growth stages. As the output of is analog the soil moisture sensor cannot be directly given to the FPGA board. Hence an ADC (Analog to Digital Converter) is used between FPGA and the soil moisture sensor. The motor can be switched on and switched off automatically through FPGA board according to the moisture content levels which are displayed in the PC (Personal Computer) using visual basic coding.