As we all are familiar with home automation and along with the simple click, we can control such up to 6-8 home appliances simultaneously and such system is implemented using various online software and Arduino kit given command. The Blynk App as an software which is solely a cloud based IoT web server used to create virtual switches, the communication held between them are decoded information further send to the microcontroller which is called as NodeMCu4, will in return control that ray joined to it as per requirement, switching on/off devices as per the user command. Some communication establish linking the NodeMCU4 and working software through Wi-Fi.