NodeMCU is a Lua-based firmware for ESP8266, ESP8285, and ESP32 microcontrollers, designed to simplify IoT development. It provides an easy-to-use programming model with over 70 built-in modules, enabling developers to create wireless nodes or access points with minimal effort. This project is ideal for hobbyists, makers, and developers working on IoT projects who want to leverage Lua's simplicity and the ESP modules' capabilities.