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Product Description:

The NodeMCU ESP8266 V3 is a powerful and low-cost WiFi module that has become a staple for anyone looking to build IoT projects. This development board is built around the highly capable ESP8266 System-on-a-Chip, providing not just microcontroller functionality but also full Wi-Fi connectivity on a single, easy-to-use platform. A defining feature of the V3 version is the integrated CH340G USB-to-serial converter, which simplifies the programming and power-up process by allowing direct connection to a computer via a standard Micro-USB cable, eliminating the need for an external programmer.

While originally known for its Lua programmable firmware, the NodeMCU has gained immense popularity due to its seamless compatibility with the Arduino IDE. This allows developers already familiar with the Arduino ecosystem to easily write code for this board, leveraging a vast library of functions to control its numerous GPIO pins, PWM outputs, and a single ADC input. With 4MB of flash memory, it provides ample space for complex applications, including those that require over-the-air (OTA) updates.

Whether you are creating a smart home automation system, a wireless sensor network, or a web-controlled robot, the NodeMCU ESP8266 V3 is the perfect tool for the job. Its combination of a powerful processor, integrated Wi-Fi, and a user-friendly programming environment makes it an ideal platform for both beginners and experienced developers to bring their DIY IoT projects to life.

The NodeMCU ESP8266 V3 is a WiFi-enabled IoT board built on the ESP8266 microcontroller, offering a compact, affordable, and robust platform for creating wireless web-enabled projects. This version includes the CH340 USB driver for reliable PC connectivity and a micro-USB port for programming and power.

With built-in WiFi and GPIO pins, this module can control devices, collect sensor data, and communicate over the internet. It supports programming via Lua scripting language or the Arduino IDE, providing a flexible coding environment for beginners and advanced users.

 

Technical Specifications:

 

Features:

• Built-in WiFi module (802.11 b/g/n)

• On-board CH340 USB-to-Serial converter

• Compatible with Arduino IDE, PlatformIO, and Lua interpreter

• On-board voltage regulator (3.3V)

• PWM, ADC, I2C, SPI, UART available on GPIOs

• Compact and breadboard-friendly form factor

• LED indicators for power and GPIO status

• Ideal for DIY IoT, wireless data logging, smart home projects

 

Pinout Overview:

• Digital I/O Pins: D0–D8

• Analog Input: A0

• UART: TX / RX

• I2C: SDA / SCL

• SPI: MOSI / MISO / SCK

• Power: Vin, 3V3, GND

 

Applications:

• Home automation systems

• Wireless sensor networks

• Smart appliances

• IoT data logging & monitoring

• WiFi-based robotics

• Cloud-connected projects (e.g., Blynk, ThingSpeak, MQTT)

 

Package Includes:

• 1 × NodeMCU ESP8266 V3 WiFi Development Board (CH340)