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NodeMCU V2 ESP8266 WiFi Development Board with CP2102

Specification	Details
Microcontroller	ESP-12E (ESP8266EX Core)
Operating Voltage	3.3V
Input Voltage	5V (USB) / 7V–12V (VIN)
USB-Serial IC	Silicon Labs CP2102
Flash Memory	4 MB
Clock Speed	80 MHz / 160 MHz
Digital I/O Pins	11 (PWM, I2C, SPI, 1-Wire supported)
Analog Input	1 (A0, 10-bit ADC)

Price

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₹ 237.29

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बारकोड: 3998

Product Description

The NodeMCU V2 (often referred to as the "Amica" version) is specifically designed to be breadboard-friendly. Unlike the wider V3 version, this board is narrow enough to leave one row of holes free on each side of a standard breadboard, making prototyping significantly easier. It features an onboard 3.3V voltage regulator and integrated WiFi (802.11 b/g/n), allowing it to serve as a web server, a client, or a standalone access point.

Key Features

High-Stability CP2102: The professional-grade serial IC ensures fewer driver issues and more stable data transmission during long debugging sessions.
True Breadboard Compatibility: Its slim form factor is optimized for rapid prototyping without needing to chain multiple breadboards together.
Powerful Wireless Stack: Full TCP/IP stack support for secure WiFi communication, including WPA/WPA2 authentication.
Extensive Language Support: Easily programmed using Arduino C++, MicroPython, or LUA, making it accessible for a wide variety of skill levels.
Integrated Antenna: Features a high-gain PCB trace antenna for reliable wireless range in indoor environments.

Technical Details

Interface: Micro-USB.
Dimensions: ~48mm x 25mm.
Logic Level: 3.3V only.

Prototyping and Engineering Tips from Robogears

The V2 vs. V3 Choice: Always choose the V2 if you are working primarily on breadboards. The V3 is wider and covers all your breadboard holes, forcing you to use jumper wires for every single pin.
CP2102 Driver Advantage: Most modern operating systems (Windows 10/11, macOS) include the CP2102 drivers by default. If you are having "Port not found" issues with other boards, switching to this CP2102 version often solves the problem.
Analog Pin Voltage: The A0 pin on the NodeMCU has an internal resistor divider. While the raw ESP8266 chip only takes 1.0V, this board allows you to input up to 3.2V, which is perfect for reading most standard analog sensors.
Power Consumption: For battery-powered projects, use the ESP.deepSleep() function. This can reduce current draw to micro-amps, allowing a single Li-ion battery to power a sensor for months.

Package Includes

1 x NodeMCU V2 ESP8266 Development Board (CP2102)

Disclaimer

This is a 3.3V logic device. Connecting 5V signals directly to the GPIO pins will likely cause permanent damage. Use a Logic Level Converter for 5V peripherals.

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