NodeMcu V3 CH340 ESP8266 WiFi IoT Development Board
NodeMcu V3 CH340 ESP8266 WiFi IoT Development Board
NodeMcu V3 CH340 ESP8266 WiFi IoT Development Board
Meet the NodeMcu V3 CH340 ESP8266 WiFi IoT Development Board — a compact, versatile microcontroller module designed for makers, hobbyists, and engineers ready to build connected IoT projects. Powered by the popular ESP8266 chip and equipped with the reliable CH340 USB-to-serial driver, this board makes wireless prototyping fast and approachable.
Whether you're creating a smart home sensor, automating devices, or experimenting with Lua scripting, this NodeMcu V3 board gives you a solid, stable foundation to build on.
Key Features
- ESP8266 WiFi SoC: Built-in 802.11 b/g/n WiFi for seamless wireless connectivity in your IoT projects
- CH340 USB-to-Serial Chip: Widely supported across Windows, macOS, and Linux — no extra drivers needed on most systems
- Reinforced USB Interface: Redesigned, more solid USB port for a reliable connection during programming and testing
- NodeMcu V3 Firmware: Supports Lua scripting via NodeMcu firmware, as well as Arduino IDE and MicroPython
- Breadboard-Friendly: Standard pin spacing for easy prototyping on a breadboard
- Onboard LED & Reset Button: Built-in indicators and controls for quick debugging and testing
- Low Power Design: Optimized for IoT applications where power efficiency matters
- Open-Source Compatible: Works with a wide range of open-source libraries and IoT platforms including MQTT, HTTP, and more
Technical Specifications
- Microcontroller: ESP8266 (Tensilica L106 32-bit RISC)
- USB Driver Chip: CH340
- Operating Voltage: 3.3V (5V input via USB)
- WiFi Standard: 802.11 b/g/n (2.4 GHz)
- GPIO Pins: 11 digital I/O, 1 analog input (A0)
- Flash Memory: 4MB
- Clock Speed: 80 MHz / 160 MHz
- Interface: Micro USB
- Programming: Arduino IDE, Lua (NodeMcu), MicroPython
What's in the Box
- 1 × NodeMcu V3 CH340 ESP8266 WiFi Development Board
Who Is This For?
This board is perfect for:
- Electronics hobbyists and DIY makers building IoT gadgets
- Students learning embedded systems and wireless programming
- Developers prototyping smart home automation projects
- Engineers needing a quick-to-deploy WiFi-enabled microcontroller
For further reading on IoT security and best practices when deploying connected devices, visit the NIST Internet of Things (IoT) resource page.
Frequently Asked Questions
Q: What is the NodeMcu V3 CH340 ESP8266 WiFi IoT Development Board used for?
A: The NodeMcu V3 CH340 ESP8266 board is a compact microcontroller development platform used to build WiFi-enabled IoT projects. It supports Lua scripting via the NodeMcu firmware, Arduino IDE programming, and MicroPython, making it ideal for smart home automation, sensor networks, data logging, and wireless communication experiments.
Q: What is the difference between the CH340 and CP2102 USB chips on NodeMcu boards?
A: The CH340 and CP2102 are both USB-to-serial converter chips used on NodeMcu boards. The CH340 (used on this V3 board) is widely supported and typically works out-of-the-box on most operating systems. The CP2102 is found on some V2 variants. Both are functionally compatible for programming the ESP8266, though driver installation may vary slightly by operating system.
Q: Can I program the NodeMcu V3 ESP8266 board with the Arduino IDE?
A: Yes! The NodeMcu V3 ESP8266 board is fully compatible with the Arduino IDE. Simply install the ESP8266 board package via the Arduino Board Manager, select "NodeMCU 1.0 (ESP-12E Module)" as your board, and you're ready to upload sketches over the Micro USB connection.
Q: What WiFi protocols does the ESP8266 on this board support?
A: The onboard ESP8266 chip supports IEEE 802.11 b/g/n WiFi on the 2.4 GHz band. It is compatible with standard home and office routers and supports common IoT protocols such as MQTT, HTTP, WebSockets, and TCP/UDP for building connected applications.