Auto light and water saving system by using microcontroller

Abstract

We are now living the 21st century .Now a days we are mostly dependent on technology. We cannot think ourselves without technology for a single moment. Now computer technology have developed enormously. Now most of technology is basically dependent on the computer technology. We are now using technology to make ourselves automated. People are now using automated technology of their day to day life. Microcontroller based automatic system are getting more popular. Various sensors are being used with the microcontroller. Our study is basically a small attempt to promote a simple home automation. We used PIR Infrared Motion Sensor, IR sensor, Temperature sensor. We have built a prototype for our project including two room, one water basin, and a fire alarm in the home .For two room we used two PIR sensor which basically perform automatic switching of light. PIR sensor used the movement of any object. Then the IR sensor basically controlling the motor. IR sensor detects the object by using the infrared ray. Finally temperature sensor works to detect the high temperature and then fire alarm get started.