ESP8266 NodeMCU WiFi Programming Development Kit 30-Pin With CP2102

ESP8266 NodeMCU WiFi Programming Development Kit 30-Pin With CP2102

The ESP8266 NodeMCU V3 Lua WiFi IoT Development Board (CP2102 chip) is one of the most widely used and cost-effective platforms for Internet of Things (IoT) projects. Designed with simplicity, flexibility, and performance in mind, this open-source development board allows both beginners and professionals to build connected devices quickly and affordably.

At the heart of the NodeMCU V3 is the ESP8266EX microcontroller, a low-power yet powerful WiFi-enabled chip that has become the backbone of countless smart devices, DIY projects, and industrial IoT solutions. Combined with the CP2102 USB-to-Serial interface, the NodeMCU V3 ensures smooth communication with your computer, stable programming, and broad compatibility across different operating systems.

Key Features

• 🌐 Built-in WiFi (802.11 b/g/n, 2.4GHz): Connect your projects directly to the internet.

• ⚡ Powerful Microcontroller: ESP8266EX running at 80MHz clock speed.

• 🔗 CP2102 USB-to-Serial Interface: Reliable communication between your computer and the board.

• 🔧 Versatile I/O Options:

  • 11 Digital I/O pins (GPIO, PWM, I2C, SPI supported)

  • 1 Analog input pin (0–3.2V)

• 📥 Flash Memory: 4MB for applications and data storage.

• 🛠️ Flexible Programming: Compatible with Arduino IDE, NodeMCU Lua firmware, and other development environments.

• 🔋 Power Supply Options: 5V DC via micro-USB or 3.3V via VIN pin.

• 🧩 Compact Design: Easy integration with dimensions of 49mm x 24mm x 13mm.

• 🌡️ Wide Operating Temperature: Works reliably from -40°C to +125°C.

Technical Specifications

• Microcontroller: ESP8266EX

• Operating Voltage: 3.3V DC

• Input Voltage: 5V via USB / 3.3V via VIN

• Digital I/O Pins: 11 (supports PWM, I2C, SPI)

• Analog Input Pins: 1 (0–3.2V)

• UART: 1

• Flash Memory: 4MB

• SRAM: 64KB

• Clock Speed: 80MHz

• WiFi Protocols: 802.11 b/g/n (2.4GHz)

• USB Interface Chip: CP2102

• Operating Temperature: -40°C to +125°C

• Dimensions: 49mm x 24mm x 13mm

Applications

The ESP8266 NodeMCU V3 CP2102 is widely used for IoT and embedded systems projects, including:

• 🏠 Smart Home Automation – WiFi-enabled lights, switches, and appliances.

• 📡 Wireless Sensor Networks – Collect and transmit real-time environmental data.

• 🤖 Robotics & Automation – Remote-controlled robots and smart machines.

• 📲 Mobile & Cloud Integration – IoT projects that connect with cloud platforms and apps.

• 🎓 Educational Projects – Perfect for students, hobbyists, and engineers learning IoT development.

Why Choose NodeMCU V3 with CP2102?

Unlike some versions that use the CH340 chip, this board uses the CP2102 USB-to-Serial converter, known for its better stability, faster data transfer, and broader OS compatibility. This ensures hassle-free installation of drivers on Windows, Mac, and Linux systems, making it ideal for developers who need a reliable IoT prototyping board.

CP2102 Datasheet