Implementation model of Wi-Fi based Smart Home System

Smart home is a term that is commonly used to refer to homes where the appliances, lightning, air-conditioning, TVs etc. are capable of communicating with each other and can be controlled remotely according to a predefined schedule or via some kind of interface. In this project presents a Home automation system using Wireless Fidelity as communication interface. The idea behind this project was to develop a home automation system which is a cheaper alternative to commercial options of home automation and at the same time could be seamlessly integrated with the commercial products. Also the interface of the system should be as simple and easy to learn as possible so that even the elderly and disabled people are able to use it. The system could be controlled using an android application or Google Assistant. The android application is used to communicate with the firebase database and update its values, this in turn enables us to control the various sensors and electrical appliances in home. The project uses Node MCU ESP 8266 12 E as the controller and also as the module for wireless communication. Various sensors like MQ6, MQ 135, DHT 11 etc. have been used to take reading of the environment around the house and to keep a watch on it. Also Firebase has been used as the database to keep record of readings of the various sensors.