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NodeMCU V3 ESP8266 — The Most Popular ESP8266 Development Board

The NodeMCU V3 (CH340) ESP8266 Development Board is the best-selling ESP8266 board in the world and the first board most makers reach for when starting an IoT project. It combines the ESP-12E module, a CH340G USB-to-serial chip, onboard 3.3V regulator, reset circuit, and breadboard-ready headers into a complete, immediately programmable package — plug in, install the driver, and start coding.

It is called V3 (LoLin) because of its wider PCB compared to the V2 (Amica). The wider form is a tradeoff — it occupies the full width of a standard 400-point breadboard, but it is robust, widely documented, and the cheapest way into ESP8266 development.

ESP8266 Development Board Family Comparison

Board USB Chip Width Flash Best For
NodeMCU V3 CH340 (this) CH340G Wide 4 MB Budget builds, Windows, most popular
NodeMCU V2 CP2102 CP2102 Narrow 4 MB macOS/Linux, breadboard-friendly
WeMos D1 Mini CH340G Very small 4 MB Compact builds, shield ecosystem
WeMos D1 (UNO size) CH340G UNO form 4 MB UNO shield compatibility

Key features

  • Ready out of the box: USB cable in, driver installed, program in minutes
  • CH340G USB-to-serial: Stable, widely supported on Windows — free driver download
  • 4 MB flash: Plenty for firmware, OTA updates, and LittleFS storage
  • 11 digital GPIO: PWM, I2C, SPI, UART — full peripheral support
  • 1 analog input: 10-bit ADC for sensors
  • Auto-reset circuit: No manual button holding to enter flash mode
  • Huge community: Thousands of tutorials, libraries, and projects available

Technical specifications

Core Module ESP8266 ESP-12E
USB Bridge CH340G
Flash Memory 4 MB
Digital GPIO 11 (PWM, I2C, SPI, UART)
Analog Input 1 × ADC (0–3.3V, 10-bit)
WiFi 802.11 b/g/n, 2.4 GHz
Power Input Micro-USB or VIN
Operating Voltage 3.3V logic
Dimensions ~58 × 31 mm
Programming Arduino IDE, MicroPython, NodeMCU Lua

Frequently Asked Questions

Does it fit on a breadboard? The V3 is wider than V2 — it spans the full width of a standard 400-point breadboard with no free pin rows on the sides. Use a wider breadboard or the NodeMCU V2 if you need free rows.
How do I install the CH340 driver? Download from the WCH website (ch341ser.exe for Windows, ch34xser.pkg for macOS). On Linux, the driver is often pre-installed.
Can I use MicroPython? Yes. Flash MicroPython using esptool: esptool.py --port COMx write_flash 0x00000 micropython.bin

NodeMCU V3 ESP8266 12e Development Board CH340

NodeMCU V3 ESP8266 12e Development Board CH340

148 in stock

Product Code

2390

₱ 225.00
₱ 225.00
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