Home Automation with Node MCU and Firebase using Internet of Thing (IoT)

The Internet of Things is made up of objects with unique identities that are linked to one another online. The idea is to simply connect and keep an eye on numerous sensors and equipment via the Internet, which is widely used in this new era. This paper primarily explains the general overview and knowledge of IOT-based sensing systems and monitoring systems, which leverage databases and software to construct smart, automated household appliances. board, and an Android OS smartphone is used to remotely control the internet. This system's core part and brain, the Node MCU, can serve as an interface between a wide range of hardware parts and the real-time database. The system provides many cuttingedge switching features that turn on and off lights, fans, and other connected household equipment. It is widely used for switching lights, fan on/off by sensing and analyzing data.The cloud-based system is another notification element of this system architecture. The main feature of this system is that it can also be controlled from remote areas which can prove to contribute towards energy saving