IoT Based Home Automation using PIR Motion Sensor and Node MCU

Ranjithkumar R,Manikandan M,Rathish Ganesh S,Ram Vikash K

doi:10.35940/ijeat.d7583.049420

Abstract

This paper depicts a unique home automation system where its efficiency and accuracy can be improved by integrating the PIR motion sensor and google voice assistant. It comprises of Node MCU (esp8266) which is a Wi-Fi module used to transmit data over internet, electromagnetic relays, and the PIR sensor. This developed system works when there is any motion within the defined sensor range and it can also be controlled through the mobile application. Blynk application has been configured with the system so that it works flawlessly on both iOS and android devices. The developed microcontroller has been configured with the Blynk server which makes the home appliances work remotely and eliminates the need for a dedicated PC server. The final prototype is also configured with google assistant so that the relays can be triggered with the voice too and this system has been successfully developed, and the working prototype has been tested with various test cases

Highlights

Internet of Things (IoT) is a concept which helps to build a wireless network among the different devices accessed through internet and various IP protocols
In addition to that a PIR motion sensor has been added to the Node MCU which detects the motion within a defined range and controls the appliances based on the detected inputs
The working prototype of our home automation system has been tested and implemented. Since it comprises of PIR sensor, the appliances work only if there is any physical motion with the defined range

Summary

INTRODUCTION

Internet of Things (IoT) is a concept which helps to build a wireless network among the different devices accessed through internet and various IP protocols. Evolution of technology have always encouraged the use of Wi-Fi which eradicates the need of wired connection and reducing the cost and complexity of the system In this case the Wi-Fi module, Node MCU (esp8266), act as a gateway to connect the home appliances to the Blynk server and those appliances can be triggered remotely through the Blynk mobile app. This Internet based home automation system has been integrated with passive infrared sensor (PIR sensor) which makes the system work when there is any physical movement.

METHODOLOGY

HARDWARE SPECIFICATION

SOFTWARE DEVELOPMENT

CONCLUSION