• Yogendra Singh Parihar

The prototype is the first, step in building an Internet of Things(IoT) product. An IoT prototype consists of user interface, hardware devices including sensors, actuators and processors, backend software and connectivity. IoT microcontroller unit (MCU) or development board is a prototyping solution that features low-power processors which support various programming environments, collect sensor data using firmware and transfer it to an local or cloud-based server. NodeMCU is an open source LUA based firmware developed for ESP8266 wifi chip. Espruino , Mongoose OS, software development kit (SDK) provided by Espressif, ESP8266 add-on for Arduino are a few of development platforms that may program the ESP8266. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors specific devices through its GPIOs(General Purpose input/output) with minimal development up-front and minimal loading during runtime. ESP8266 is transforming the world with its low cost and high features which makes it an ideal module for Internet Of Things (IoT). It can be used in any application that require it to connect a device to local network or internet.

Actuators, Connectivity, Development board, ESP8266, GPIO, Internet of things, IoT, MCU, NodeMCU, Prototype, Processors, Sensors, Wi-Fi

"Internet of Things and Nodemcu A review of use of Nodemcu ESP8266 in IoT products", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.1085-1088, June 2019, Available :http://www.jetir.org/papers/JETIR1907U33.pdf

"Internet of Things and Nodemcu A review of use of Nodemcu ESP8266 in IoT products", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp1085-1088, June 2019, Available at : http://www.jetir.org/papers/JETIR1907U33.pdf