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Jul 30, 2015

SparkFun ESP8266 Thing Development Board

SparkFun ESP8266 Thing Development Board

SparkFun ESP8266 Thing Development Board (WRL-13711)

The SparkFun ESP8266 Thing Development Board is a breakout and development board for the ESP8266 WiFi SoC. Why the name? We lovingly call it the Thing because it's the perfect foundation for your Internet of Things (IoT) project. The ESP8266 is an extremely cost-effective WiFi module, that can be programmed just like any microcontroller, and wiggle I/O while it communicates with the world-wide-web.

This version of the Thing equips the ESP8266 with an onboard FTDI FT231X, which is used to program the chip over a USB interface. No external programming board required! The ESP8266's I/O pins are broken out to two parallel, breadboard-compatible rows. And LEDs towards the inside of the board indicate power, communication, and status of the IC. The ESP8266’s maximum voltage is 3.6V, so the Thing Development Board has an onboard 3.3V regulator to deliver a safe, consistent voltage to the IC. That means the ESP8266’s I/O pins also run at 3.3V, you’ll need to level shift any 5V signals running into the IC.

Repository Contents

  • /Hardware - Eagle design files (.brd, .sch)
  • /Production - Production panel files (.brd)


  • Hookup Guide - Exhaustive hookup guide for the ESP8266 Thing Development Board.

Product Versions

  • KIT-15259- ESP8266 Thing Development Board in a starter kit.
  • WRL-13804- ESP8266 Thing Development Board with headers.
  • WRL-13711- V1.0 release of the ESP8266 Thing Development Board.

License Information

This product is open source!

Please review the file for license information.

If you have any questions or concerns on licensing, please contact

Please use, reuse, and modify these files as you see fit. Please maintain attribution to SparkFun Electronics and release anyThing Development Board derivative under the same license.

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.


An all-in-one development board for the ESP8266 including an FTDI FT231X for USB programming.





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