Development of IoT based home automation and security system

Elias, Aimen Fatimah (2021) Development of IoT based home automation and security system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In recent years, IoT-based home automation and home security systems received a lot of attention. Generally, home automation technology is a system that allows users to operate virtually anywhere from home via application as long as there is an internet connection. There is a possibility that the user forgets to turn off their home appliances where cause electrical waste. Besides, there is also a possibility of burglary enter the house or gas leaking where causes a fire that will lead to serious injuries and fatalities. Therefore, there are several home automation and home security systems have been proposed. This paper proposes affordable and user-friendly IoT-based home automation and home security systems. This project utilizes Arduino Uno as a microcontroller, a WiFi-Shield, PIR sensor, gas sensor, buzzer, and LED as the hardware for home security while fan and lamp as the home appliances for this project. For the software, Arduino IDE, Thinkercad, and Blynk applications are used to configure the activity of the system. Whenever the home appliances are in on condition, the user may turn off the home appliances when not in use. Meanwhile, for home security, if sensors are triggered, a notification will be sent to the user’s smartphone. The buzzer and led as the output give an alert to the user. As result, the hardware prototype for this project has been constructed in which the home appliances and sensors are controlled and monitored by the smartphone via the Blynk application. The results show that the home appliances can control the on and off button and the sensors are triggered if in an on mode and able to be displayed notification on the Blynk app. Furthermore, the PIR sensor in a security system can detect motion in a range of 31-150 degrees in an average time of 5 seconds. When the gas level exceeds 300 ppm, the gas sensor will be triggered. Thus, by applying this project, it is hoped that will help to make life easier and safer in terms of saving electrical consumption as well as reducing the possibility of anything unpleasant from happening.

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