Mini NodeMCU ESP8266 Breakout Board

This NodeMCU ESP8266 IoT Board is a wifi-enabled microcontroller that will give your projects wifi connectivity plug programmable functionality all in one! The latest in Internet of Things projects!

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Last Updated: 02/23/2024




Use this NodeMCU ESP8266EX IoT Board to easily add a mini wifi enabled microcontroller to your projects! If you've used the ESP8266 serial module before, you'll find this is a piece of cake to use and adds a lot more GPIO pins to turn it into a full microcontroller! This NodeMCU development board contains a full ESP8266 WiFi module with all the GPIO broken out, a full USB-serial interface, and a power supply all on the one breadboard-friendly package. The NodeMCU is an open-source project and you can find all the design files and so on on their github page.

It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. It has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry.


  • 11 Digital I/O pins
  • All pins besides D0 support PWM, Interrupts, I2C serial and One Wire Serial
  • 1 Analog Input Pin (3.3V max)
  • Micro USB jack for programming!
  • 4MB Flash Memory
  • 64Kb of instruction RAM and 96Kb of data RAM
  • 80Mhz / 160Mhz 32 bit processor
  • Multiple GPIO pins
  • Programmable via Arduino software (select ESP8266 as board type)
  • Programmable via LUA scripting language as well
  • Can be coded like an arduino based board or interactively with Lua scripting
  • Operating Voltage: 3.3V
  • Can be powered via Micro USB or directly on the 5V and G pins
  • Arduino IDE 1.6.4 or above is supported
  • Includes 3 sets of header pins (male, female and stackable) so you can choose whichever you prefer to perfectly match your project!


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