About this item

NodeMCU is an IoT development board based on the ESP8266 Wi-Fi module, designed specifically for building Internet of Things (IoT) applications. It combines the powerful ESP8266 Wi-Fi System-on-Chip (SoC) with additional components to make it easy to program and integrate into projects. NodeMCU is open-source and originally used the Lua scripting language for programming, though it is now widely supported by the Arduino IDE, making it highly accessible to hobbyists and developers alike. One key feature of NodeMCU is the inclusion of the CH340G USB-to-TTL converter IC, which allows for easy connection between the board and a computer via USB for programming and serial communication. The board supports Wi-Fi connectivity out of the box, enabling it to either connect to a wireless network or act as a hotspot, which is essential for most IoT applications. In addition to Wi-Fi capabilities, the NodeMCU offers multiple digital I/O pins, one analog input pin, and supports serial communication protocols such as UART, SPI, and I2C. With 128 KB of RAM and 4 MB of flash memory, it has enough resources for a variety of applications. Its compact design and deep sleep functionality make it ideal for low-power, remote-sensing, or smart automation projects.