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  4. NodeMCU V3 ESP8266 Development Board with CH340 Serial IC WiFi Lua IoT Microcontroller
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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
NodeMCU V3 ESP8266 Development Board with CH340 Serial IC WiFi Lua IoT Microcontroller

NodeMCU V3 ESP8266 Development Board with CH340 Serial IC WiFi Lua IoT Microcontroller

SpecificationDetails
MicrocontrollerESP-12E (Based on ESP8266)
Operating Voltage3.3V
Input Voltage5V (via USB) or 7V–12V (via VIN)
Flash Memory4 MB
Clock Speed80 MHz / 160 MHz
Digital I/O Pins11 (All support PWM, I2C, 1-Wire)
Analog Input1 (Max 1.0V or 3.2V depending on board)
                                 Price

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₹ 199.15 ₹ 199.15
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बारकोड: 54780

Product Description

The NodeMCU V3 is designed to be breadboard-friendly, with all pins broken out to standard 2.54mm headers. It features an onboard voltage regulator that allows it to be powered directly from a USB cable. Unlike standard microcontrollers, the NodeMCU can act as both a WiFi station (connecting to your router) and a WiFi Access Point (creating its own network). This makes it a perfect choice for wireless web servers, smart home switches, and remote environmental monitoring.

Key Features

  • WiFi Connectivity: Built-in 802.11 b/g/n support for seamless internet and local network communication.

  • Arduino IDE Compatible: Can be programmed just like an Arduino after installing the ESP8266 board package.

  • Plug and Play: The integrated CH340 serial IC allows for direct USB-to-Computer connection without needing external programmers.

  • Low Power Consumption: Supports deep sleep modes, making it suitable for battery-powered sensor nodes.

  • High Memory Capacity: 4MB of flash storage provides plenty of space for complex web server code and large data logs.

Technical Details

  • USB Interface: Micro-USB.

  • Dimensions: 58mm x 31mm (slightly wider than V2).

  • Programming Languages: LUA, MicroPython, C++ (Arduino).

Prototyping and Engineering Tips from Robogears

  • Breadboard Space: Be aware that the V3 (LoLin) version is slightly wider than the V2 (Amica). When placed on a standard breadboard, it will cover all the holes on both sides. Use two breadboards side-by-side or use Female-to-Male Jumper Wires to connect your pins.

  • Logic Level Alert: The NodeMCU is a 3.3V device. Connecting 5V sensors directly to its GPIO pins can damage the ESP8266 chip. Always use a Logic Level Converter for 5V peripherals.

  • Powering for WiFi: WiFi communication causes brief current spikes. If your board keeps resetting during a WiFi.begin() call, ensure your USB cable is of high quality and your power source can provide at least 500mA.

  • The "Flash" Button: If you encounter errors while uploading code, try holding down the FLASH button, clicking upload in your IDE, and then releasing it when the "Writing" process begins.

Package Includes

  • 1 x NodeMCU V3 ESP8266 Development Board (CH340)

Disclaimer

Always double-check your wiring before applying power. Ensure you have the CH340 drivers installed on your computer for the board to be recognized as a COM port.

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