Abstract:
Internet of things (IoT) refers to the infrastructure of connected physical devices which is growing at a rapid rate as a huge number of devices and objects are getting associated with the Internet. Home security is one of the useful applications of IoT. This paper describes a project for a home security system. The system will inform the owner about any unauthorized entry or whenever the door is opened or if there is any gas leakage by sending the notification to the user through a smartphone. The system consists of an Arduino Uno as the main microcontroller, a PIR sensor to detect human movement, a buzzer to sound an alarm, an MQ-6 gas sensor to detect gas leakage, and an ESP8266 Wi-Fi module or NodeMCU to connect to the Internet. The main advantages of the system are ease of use, lower cost, and low maintenance.
