NodeMCU ESP8266 Development Board (CH340 USB) — Wi‑Fi IoT Module

NodeMCU ESP8266 V3 Lua CH340 WiFi Development Board

The NodeMCU ESP8266 V3 is a low-cost, high-performance WiFi development board built around the ESP8266 (ESP-12) module. It combines powerful WiFi capability with an easy-to-use development platform, making it ideal for IoT, automation, and embedded projects.

This version uses the reliable CH340G USB-to-serial chip for stable communication across supported platforms. It features integrated WiFi (802.11 b/g/n at 2.4GHz) and supports WPA/WPA2 security. The board can operate in Station (STA), Access Point (AP), or STA+AP modes, and includes a built-in TCP/IP stack supporting multiple TCP client connections.

NodeMCU provides access to GPIO, PWM, ADC, I2C (IIC), and 1-Wire interfaces, enabling flexible hardware control. It supports Lua scripting via NodeMCU firmware as well as programming through the Arduino IDE. With OTA (Over-The-Air) firmware upgrade capability, development and updates become more convenient without the need for repeated USB connections.

The board is designed for rapid prototyping and simplifies hardware configuration with advanced APIs for I/O control. Its event-driven network API style allows efficient IoT application development similar to Node.js environments.

This open-source development kit integrates all essential peripherals on a single compact board, making it an excellent choice for smart home systems, wireless sensor networks, robotics, and other WiFi-enabled projects.

Note: Actual product appearance may vary.

Key Features

Wireless 802.11 b/g/n at 2.4GHz
Supports WPA/WPA2 security
STA / AP / STA+AP operating modes
Built-in TCP/IP protocol stack (up to 5 TCP clients)
Integrated GPIO, PWM, ADC, I2C, and 1-Wire interfaces
USB-to-TTL interface using CH340G
Supports OTA firmware upgrade
Compatible with Arduino IDE and NodeMCU Lua firmware
Open-source, low-cost, and easy prototyping platform

Package Includes:
1 x NodeMCU ESP8266 V3 Lua CH340 WiFi Development Board