2021 7 th International Conference on Advanced Computing and Communication Systems (ICACCS) IoT based Door open or close monitoring for home security with emergency notification system using LoRa Technology Santhi Venkatraman Department of Computer Science and Engineering PSG College of Technology, Coimbatore, TamilNadu-641004 vsr.cse@psgtech.ac.in Varshaa R R Department of Computer Science and Engineering PSG College of Technology, Coimbatore, TamilNadu-641004 rrvarshaa26@gmail.com Vigneshwary P Department of Computer Science and Engineering PSG College of Technology, Coimbatore, TamilNadu-641004 vigneshwary17@gmail.com Abstract— This paper examines and analyzes the security measures that address the difficulties that are faced by the house owners and also the bank locker holders. Current door monitoring system methods involves the use of digital locks, Wi- Fi technology to check the status of the door periodically leading to a reduction in theft and robbery or burglary that happens per every 3 minutes in India as per reports. According to the report, Indians continue to place greater emphasis on keeping their online safety systems up-to-date in order to ensure safety of their homes. Using LoRa technology, we can endlessly monitor the status of the door i.e. whether it is open or closed and based on the status further actions like alarming, sending an emergency notification are done to notify and alert the owner and to improve security. Lora Technology reconfigured the IoT by enabling long distance data connections while using very little power. LoRaWAN fills a technical gap for mobile-based and a WiFi networks which needs higher power or high bandwidth or even the inability to penetrate into deep indoor areas. Keywords— theft; door monitoring; house owners; Wi-Fi; LoRa technology; IoT I. INTRODUCTION The basis of installing a door monitoring system is to create and accentuate the home and bank locker safety. Indeed, home safety is a major concern for citizens as well as for police and authorities. Therefore, to encourage people to protect their homes and bank lockers against threats such as robbery, burglary and thefts, this system can be installed in the doors of their homes or lockers. To keep living residences safe from such violent crime requires not only better action from the authorities but also greater readiness from citizens. Keeping the same in mind, this door monitoring system is to make people more watchful and vigilant when it comes to home-safety. Reports also note that while people are aware of rise of digital locks, there is no proactive or effective implementation when it comes to protecting assets within homes. This means a high percentage of people who are not equipped to deal with the threat to home security and, surprisingly, the most common theft in India is home theft. This highlights that home safety requires equal or greater care that digital security enjoys as most people do not want to advance to high technological safety in homes. A proven strategy need to be imposed for ensuring security and to monitor house environment. This paper aims to develop a system providing home security or a home monitoring system using Internet of Things (IoT) by integrating the Arduino Uno and LoRa shield as a controller [1]. The home security system contains a Reed switch to monitor the status of the door and uses LoRa technology to send notification to users. When the device is connected to a LoRaWAN network, LoRa devices incorporate a wider range of applications by transferring the packets containing important details. In fact, LoRa Technology is evolving with various cases of domestic or rural uses like smart houses, smart cities and buildings, smart agriculture, smart supply chain, smart meters for monitoring, logistics and a series of smart feeds. The proposed LoRa powered device consists of a reed switch which monitors the status of the door and alerts the owner immediately whenever the door is opened which is implemented by Arduino Uno. Using LoRa Technology in the door monitoring system using Internet of Things instead of using Wifi or Gsm Technology is cost effective and also user friendly. The reason behind its better performance is it overcomes the disadvantages in the existing projects by consuming low power and long range transmission (distance coverage by LoRa). LoRa (which stands for Long Range) which is found in Chirp Spread Spectrum (CSS) technology is a technique used for spread spectrum modulation [2]. Therefore, it is more important to have an efficient inspection device with very less defects to notify the owner or to intimate him to take protective measures immediately 173 978-1-6654-0519-5/21/$31.00 ©2021 IEEE