An Arduino WiFi Shield based around the Espressif ESP8266 WiFi SoC.
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Production Renaming "Production_Files" folder to "Production" Jul 16, 2015
.gitignore Initial commit Feb 9, 2015 Standardizing README. Jul 16, 2015

SparkFun ESP8266 WiFi Shield

SparkFun ESP8266 WiFi Shield

SparkFun ESP8266 WiFi Shield (WRL-13287)

The SparkFun ESP8266 WiFi Shield is essentially an Arduino shield for the ESP8266 WiFi SoC. The ESP8266 ships with a slightly customized version of the Espressif AT command set.

The ESP8266 is controlled by serial AT commands. The shield is equipped with a switch to swap between a software serial port or hardware serial port interface.

Repository Contents

  • /Firmware - Firmware flashed on the ESP8266 WiFi Shield (requires ESP8266 SDK 1.2.0)
  • /Hardware - Eagle design files (.brd, .sch)
  • /Production - Production panel files (.brd)


  • Hookup Guide - Exhaustive hookup guide for the ESP8266 WiFi Shield.

Product Versions

  • DEV-13287- V1.0 release of the WiFi Shield.

License Information

This product is open source!

The hardware is released under Creative Commons ShareAlike 4.0 International.

The code is beerware; if you see me (or any other SparkFun employee) at the local, and you've found our code helpful, please buy us a round!

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

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.