IoT based surveillance system using with NODEMCU

The research paper detail with the very important issue that how to provide Security to home which is under threat from the thief for burglary sometime person life will be in danger and now a day, the thief have become more advance in doing burglary not only home but bank shopping mall and gold & diamond jewellery and so to protect not only this building but also our houses, this research paper discuss about protection of building by using PIR sensor wich is a motion detector along with nodeMCU and mobile phone application which is called as Blynk we have to installed this application in our mobile phones this application will be active in phone and a screen will when a motion is detected by pir sensor