NodeMCU V3 ESP8266 ESP-12E CH340 WiFi Board

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Short Description:

NodeMCU V3 ESP8266 ESP-12E is a WiFi development board used in prototyping IoT projects through the Lua programming language or through Arduino IDE. 

Long Description:

ESP8266 NodeMcu is a popular and widely used development board based on the ESP-12E WiFi Module that combines elements of easy programming with Arduino IDE (C\C++) and WiFi capability. Through the build-in programmer and CH340G USB-to-Serial chip, flashing the ESP8266 and serial output on a PC, development and prototyping projects are done with ease. Just like Arduino boards, the ESP8266 NodeMcu has GPIO pins, voltage regulator, ADC, and Micro-USB port (for flashing and serial output) – all on one board. On top of that the ESP8266 NodeMcu has a full WiFi that takes care of the WiFi communication to a server or client.



  • Tensilica L106 32-bit microcontroller unit at 80 MHz (or overclocked to 160 MHz)
  • 32 kB instruction RAM
  • 80 kB user data RAM
  • 16 kB ETS system data RAM
  • Flash Memory 4Mb
  • USB – micro USB port for power, programming, and debugging
  • 13 GPIO pins
  • 802.11 b/g/n, supporting WPA/WPA2
  • STA / AP modes support
  • TCP / IP protocol stack, One socket
  • TCP / UDP Server and Client
  • Serial port baud rate configuration: 1200/2400/4800/9600/19200/38400/57600/74800/115200 bps
  • Pin-compatible with Arduino UNO, Mega
  • KEY button: modes configuration
  • 32-bit hardware timer
  • WiFi operation current: continuous transmission operation: ≈70mA (200mA MAX), deep sleep mode: <3mA
  • Serial WiFi transmission rate: 110-460800bps
  • Temperature: -40℃ ~ + 125 ℃
  • Humidity: 10%-90% non-condensing
  • Weight: about 20g (0.7oz)
  • Pulse-Width Modulation (PWM)
  • Interrupt capability
  • 3.3V operating voltage, internal voltage regulator allows 5V on power input
  • maximum current through GPIO pins: 12mA (source), 20mA (drain)
  • available firmware for Arduino IDE
  • Websocket libraries available