Now a day IoT applications become new opportunity for all the domains like home automation, medical diagnosis, agriculture environment, transportation industries and so on and so forth where we can see use of many different IoT devices to measure and manage real time data and gets some insights from it that will be helpful for taking good business decisions but we can face many privacy & security challenges to implement it also. McKinsey Global Institute research and predicted that the IoT domain covered more than $11.1 trillion market share by 2025. To see this prediction we have great options to dive deep into the IoT domain. In this paper, first we identify privacy & security challenges of it and then we measure temperature & humidity on local standalone web server for home automation using NodeMCU ESP8266 Wi-Fi Module that display real time data and additionally display corona case statistics that give latest updates of corona cases worldwide. This concept is inexpensive, efficient and preferable for any home automation. This system has three main components: an ESP8266 NodeMCU Wi-Fi Module, DHT11 Sensor and Standalone web server.

Keywords: Home Automation, IoT Challenges, ESP8266, NodeMCU Wi-Fi Module, DHT11 Sensor, Local Web Server, ESPAsyncTCP Library, ESPAsyncWebServer Library.