SparkFun WiFi Shield - ESP8266

Key Features Arduino compatible shield for the ESP8266 WiFi SoC  Arduino R3 Layout Pre-flashed with an AT-command firmware Inexpensive gateway to the Internet The SparkFun ESP8266 WiFi Shield is an Arduino compatible shield for the ESP8266 WiFi SoC – a leading platform for Internet of Things (IoT) or WiFi-related projects. The ESP8266 WiFi Shield finds a middle ground between the Module and the Thing that provides a great introduction to the ESP8266 – without leaving the comfortable hardware confines of your Arduino. If you just have an Arduino project that needs an inexpensive gateway to the Internet, the ESP8266 WiFi Shield does everything from turning on an LED to posting data online to a data streaming service.Since this is an Arduino shield, it makes it easy to attach to any development board that utilizes the Arduino R3 layout. All it will take is a little soldering to attach the necessary headers. The ESP8266 has almost a dozen I/O that can be configured as digital inputs or out