NodeMCU ESP8266 Wi-Fi Module V3 (CP2102)

  • ESP8266 Chip: Powers Wi-Fi connectivity and microcontroller functions.
  • CP2102 USB-to-Serial: Facilitates easy USB communication with devices.
  • Wi-Fi Connectivity: Supports 802.11 b/g/n standards for wireless networking.
  • Arduino IDE Compatible: Programmable via Arduino IDE for easy development.
  • GPIO Pins: Offers GPIO, UART, SPI, I2C, ADC, and PWM capabilities.
  • Compact Design: Small form factor suitable for IoT and prototyping projects.



The NodeMCU ESP8266 Wi-Fi Module V3 (CP2102) is a versatile development board based on the ESP8266 chip, featuring the CP2102 USB-to-serial converter. This module combines the power of Wi-Fi connectivity with microcontroller capabilities, making it ideal for IoT applications, home automation, and prototyping projects. It supports a wide range of sensors and devices, enabling seamless integration into various electronic systems.

Key Features

  1. ESP8266 Chipset:
    • Powers Wi-Fi connectivity and microcontroller functions for IoT applications.
  2. CP2102 USB-to-Serial Converter:
    • Enables easy communication with computers and other devices via USB.
  3. Built-in Wi-Fi Connectivity:
    • Supports 802.11 b/g/n standards for reliable wireless communication.
  4. Microcontroller Capabilities:
    • Features GPIO pins, UART, SPI, I2C, ADC, and PWM interfaces for versatile project development.
  5. Arduino IDE Compatibility:
    • Programmable using the Arduino IDE, simplifying code development and integration.
  6. Integrated Antenna:
    • Includes an onboard PCB antenna for robust Wi-Fi signal reception.
  7. Compact Design:
    • Small form factor suitable for embedding into projects and prototypes.
  8. Open-Source Firmware:
    • Allows customization and adaptation to specific project requirements.


  • IoT Projects: Connects devices to the internet for data exchange and remote control.
  • Home Automation: Controls and monitors home appliances via Wi-Fi connectivity.
  • Prototyping: Rapid development and testing of electronic projects with wireless capabilities.
  • Sensor Networks: Integrates with sensor networks for data collection and analysis.
  • Wireless Communication: Communicates wirelessly with other devices and servers.


  • Microcontroller: ESP8266
  • USB-to-Serial Converter: CP2102
  • Wi-Fi Standard: 802.11 b/g/n
  • Operating Voltage: 3.3V (5V tolerant I/O)
  • GPIO Pins: 11 digital I/O pins, 1 analog input (ADC)
  • Communication: UART, SPI, I2C
  • Programming Interface: Micro USB
  • Dimensions: Compact size suitable for integration into projects


  • Versatile Connectivity: Wi-Fi capability for IoT and remote monitoring applications.
  • Easy Integration: Compatible with Arduino IDE for quick development and prototyping.
  • Cost-Effective Solution: Affordable board with extensive features for diverse applications.
  • Community Support: Strong community and online resources for troubleshooting and project ideas.
  • Scalable: Scales from prototyping to production with ease, leveraging open-source libraries and firmware.

The NodeMCU ESP8266 Wi-Fi Module V3 (CP2102) is an excellent choice for developers and enthusiasts looking to leverage Wi-Fi connectivity in their projects. With its compact design, robust features, and broad compatibility, it facilitates innovation in wireless communication and IoT applications.

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