부산대학교 도서관

This paper describes the use of various open source hardware such as Arduino, Raspberry Pi, etc. to build smart and secure homes. The hardware is open source and hence cost efficient. This home automation system allows the end user to monitor his home or office with a smartphone, tablet, or any computer. This paper also explains the use of the security system for fire hazards that may occur due to a gas leakage and can be detected using a smoke sensor. It uses a low power NRF24L trans-receiver at each node around the house to create a mesh network that connects to a Linux based central hub. Users can monitor the house from anywhere and get periodic alerts. In the proposed work, the house can also be controlled using voice commands such as Google Voice, Apple HomeKit and Alexa.