This project is on Analysis of a Compiler Programming Source Code of a Human Sensor of a Street Light. The solar energy from the sun is not only a truly reliable and lasting energy source but also a very cost-effective and efficient one, if the chosen types of solar panels and the environment are perfectly matched to one another. Such promising prospects have grown in an industry that has put a lot of effort into developing efficient techniques to generate, use, and store the sun’s energy by using different types of solar panels and converting the sunlight into valuable electricity. It has become easy to see the rapid increase in solar photovoltaic power generation that has taken place during the last couple of years in the United Kingdom. Within one year (2014-2015) solar PV power generation increased by almost 87%. When looking at micro controller and other components involve for designing a motion auto sensor solar street light, a good compiler is required for proper programming of the micro controllers.