NodeMcu V2 ESP8266 WiFi Development Board – Lua Programmable, CH9120X & Micro USB Interface for IoT Projects

SKU: FA2061-1
Microcontroller

ESP8266 (ESP-12E/F Module)
USB Interface

CH9102X (High-Speed UART)
Operating Voltage

3.3V (Onboard Regulator)
Input Voltage

5V (via Micro-USB) or 4V-9V (via Vin Pin)
Flash Memory

4 MB (32 Mbits)
Clock Speed

80MHz / 160MHz
Network Support

2.4GHz Wi-Fi (WPA/WPA2 Security)
I/O Logic Level

3.3V (Not 5V Tolerant)
Dimensions

48mm x 25mm
Product Description
The NodeMCU V2 is a high-performance, open-source IoT development platform powered by the ESP8266 Wi-Fi System-on-Chip (SoC). This “V2” version features the modern CH9102X USB-to-UART bridge, which offers exceptional driver compatibility and high-speed data transmission for seamless programming and debugging.
Designed specifically for the next generation of wireless connectivity, the NodeMCU V2 integrates a built-in PCB antenna, 4MB of Flash memory, and a robust 3.3V voltage regulator. Its slim, breadboard-friendly design ensures that when plugged into a standard breadboard, the outer rows of pins remain accessible for easy wiring. Whether you are a business looking to deploy a fleet of low-power sensors or a developer building a custom smart-home gateway, the NodeMCU V2 provides a stable, “plug-and-play” Wi-Fi solution.
Key Features
  • Integrated Wi-Fi Connectivity: Supports 802.11 b/g/n protocols with a full TCP/IP stack for Station, SoftAP, or mixed-mode operation.
  • Next-Gen CH9102X Chipset: Provides stable, high-speed USB-to-Serial conversion with excellent driver support for Windows 10/11, macOS, and Linux.
  • Breadboard Optimized: The slim “V2” form factor allows the board to sit on a breadboard while leaving a row of pins free on each side for prototyping.
  • Multi-Language Support: Originally designed for Lua scripting, but is fully compatible with the Arduino IDE, MicroPython, and ESP-IDF.
  • Rich Peripheral Interface: Includes 10 GPIOs, PWM, I2C, SPI, and a 10-bit Analog-to-Digital Converter (ADC).
  • Advanced Power Management: Optimized for low-power operation, featuring deep-sleep modes to extend battery life in remote IoT deployments.
Usage & Applications
  • Smart Home Ecosystems: Building Wi-Fi-controlled switches, automated lighting, and smart thermostats.
  • Industrial IoT (IIoT): Remote monitoring of factory equipment and wireless data transmission from field sensors.
  • Cloud Data Logging: Interfacing sensors with cloud platforms like AWS IoT, ThingSpeak, or Google Cloud.
  • Wireless Web Servers: Hosting localized web dashboards to control hardware directly from any smartphone or PC browser.
  • Academic Research: A standard platform for university-level courses in wireless communication and embedded systems.
Q: Do I need a separate programmer to upload code?

No. The board features an integrated CH9102X USB interface. Simply connect it to your computer with a standard Micro-USB cable to upload code and monitor serial output

Q: Is the CH9102X compatible with my computer?

Yes. The CH9102X is a modern replacement for older chips like the CP2102. It is highly compatible with Windows 10/11 and the latest versions of macOS and Linux

Q: Can I use 5V sensors with this board?

You can power the board with 5V via the Vin pin or USB, but the GPIO pins operate at 3.3V. If your sensor outputs a 5V signal, you must use a logic-level shifter or a voltage divider to prevent damaging the ESP8266

Q: How many analog inputs are available?

The board has one analog input pin (A0). It measures voltages between 0V and 3.3V (internally mapped to 0V-1V on the chip) with 10-bit resolution.

Q: Does it support "Auto-Reset" during programming?

Yes. The onboard circuitry automatically handles the transition into “Flash Mode” when you upload a sketch from the Arduino IDE, eliminating the need to press the Boot or Reset buttons manually

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