NodeMCU ESP8266 WiFi Development Board

🔹 Overview

NodeMCU ESP8266 is a popular open-source IoT development board based on the ESP8266 WiFi module. It comes with a built-in CH340 USB-to-Serial chip, allowing smooth connection to your computer for programming and serial communication.

This board is widely used for IoT, automation, and wireless communication projects due to its reliability and ease of use.

🔹 Key Features

• Built-in WiFi (802.11 b/g/n)
• Integrated CH340 USB-to-Serial driver chip
• Easy programming via Micro USB cable
• 32-bit processor (80–160 MHz)
• 4MB Flash memory
• 11 Digital GPIO + 1 Analog pin (A0)
• Supports UART, SPI, I2C
• Compatible with Arduino IDE, Lua, MicroPython
• Breadboard-friendly design

🔹 CH340 Driver Information

This NodeMCU board uses the CH340 USB-to-Serial converter, so you may need to install the CH340 driver on your computer before uploading code.

✔ Supports Windows, Linux, and macOS
✔ Ensures stable serial communication
✔ Widely used and reliable

👉 If your computer does not detect the board, simply install the CH340 driver and select the correct COM port in Arduino IDE.

🔹 Technical Specifications

• Microcontroller: ESP8266 (ESP-12E)
• USB Interface: CH340 (USB to Serial)
• Operating Voltage: 3.3V
• Input Voltage: 4.5V – 10V
• Clock Speed: 80–160 MHz
• Flash Memory: 4MB
• Digital I/O Pins: 11
• Analog Input: 1 (10-bit ADC)
• WiFi Frequency: 2.4 GHz

🔹 Applications

• IoT Projects
• Smart Home Automation
• Wireless Sensor Systems
• Weather Stations
• Robotics Projects
• MQTT & Web Server