International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 04 | Apr -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 67 AUTOMATIC ELECTRONIC BUG SWATTER FOR ROOFTOP GARDENS BASED ON SOLAR ENERGY V.Surendar 1 , P.Pachiyammal 2 , Rica Sarkar 3 , B.Saravanan 4 Assistant professor, Dept. of EEE, Kongu Engineering College, Erode, Tamilnadu, India 1 UG Student, Dept. of EEE, Kongu Engineering College, Erode, Tamilnadu, India 2 UG Student, Dept. of EEE, Kongu Engineering College, Erode, Tamilnadu, India 3 UG Student, Dept. of EEE, Kongu Engineering College, Erode, Tamilnadu, India 4 ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - In the current scenario, with the rising population more and more apartments are coming up resulting in rooftop gardens. The objective of our paper is to safeguard the rooftop plants from pests and to reduce the use of pesticides. Home gardens need to provide fresh fruits and vegetables for the better health of the family. In this project we use LED lights during night time to attract the insects and swatter electrocutes them instantly thus preventing them from reaching the plants. We also have a provision to collect the dead insects and dispose them back to the soil to be used as natural manure. During the day time, the ultrasonic sound generator is used to repel the insects. The solar energy which is a renewable source is used to recharge the batteries. The moisture level of the soil is also sensed automatically and accordingly water is fed to the plants. Our project is compact and movable. With all four applications combined in a single project, this will be very useful for the city dwellers. It will save their time and energy needed to look after the rooftop plants. Key Words: Rooftop gardens, agriculture, Solar based electronic swatter, Ultraviolet LED lights, Ultrasonic sound Generator, ATmega 8A Microcontroller, Soil Moisture Sensor, pest control 1. INTRODUCTION Urban populations face many challenges related to the health and well-being of citizens. Many of these challenges arise as the direct result of condensed urban surroundings. Intense competition for land decreases green space, and there is a subsequent spiritual detachment from agricultural roots and the natural world. Rooftop gardens are an excellent example of incorporating passive, eco-friendly technology into the new environment. Rooftop gardens help lessen the negative impacts of cities on the environment by: conserving water and energy, improving air and water quality, helping in storm water management, absorbing solar radiation, becoming a source of local food production, providing habitat restoration, and creating natural havens.Also pest management is one of the major expenditures incurred by a farmer. From sowing till the crops are harvested and sold, pests need to be managed effectively and economically. This paper aims to design and develop an automatic swatter to protect the rooftop plants from damage due to insects and pests, make judicious use of the pests by turning it into bio pesticides and an automatic watering system for the rooftop plants. 1.1 System Architecture Fig 1 Block Diagram From the above figure the power supply from 12V battery is regulated to 5V DC using regulator and given to microcontroller, as it works at 5V. A relay connected to the microcontroller switches ON the LED Strips during night time and the ultrasonic sound generator during morning time. A DC Boost Converter boosts the input 6V to 1000V.The boosted voltage is fed to the swatter. The bug is then mixed with water using a mixer. Gear motor operates the mixer which rotates at 30 rpm. Submersible Pump Motor is used to pump out the mixture through the outlet pipe.