The NodeMCU ESP8266 WiFi Development Board is a versatile and popular microcontroller board based on the ESP8266 WiFi module. It is widely used for Internet of Things (IoT) projects due to its built-in WiFi connectivity and ease of programming.
Key features include:
Microcontroller: ESP8266
Operating Voltage: 3.3V (Note: Voltage levels are NOT 5V tolerant)
Digital I/O Pins: 13 (of which some may be used for special functions)
Analog Input Pins: 1 (3.2V max input)
Flash Memory: 4MB (32Mb)
Clock Speed: 80MHz (can be overclocked up to 160MHz)
WiFi Connectivity: Built-in 802.11 b/g/n WiFi with support for WPA/WPA2 encryption
USB Interface: CH340G (for programming and power)
Integrated USB to Serial converter for easy programming and debugging
Support for Arduino IDE, NodeMCU Lua, and other development environments
The NodeMCU ESP8266 board is suitable for a wide range of IoT applications, including home automation, sensor monitoring, and remote control projects. Its compact size, built-in WiFi, and compatibility with popular development tools make it an excellent choice for both beginners and experienced developers. Whether you're prototyping a new IoT device or adding connectivity to an existing project, the NodeMCU ESP8266 board provides the flexibility and functionality you need.