The ESP8266 is an inexpensive microcontroller that's manufactured by Espressif Systems. It can run MicroPython and supports a full TCP/IP stack. Its built-in Wi-Fi supports 802.11b/g/n. The Adafruit Feather HUZZAH ESP8266 is a development board that comes with USB support for power and data connectivity.
The processor on this board runs at 80 MHz and comes with 4 MB of flash storage. The board comes with nine GPIO pins that can be connected to a number of other components. The board comes in a number of different versions. The following photo shows what this board looks like with the headers option:
The board also comes in a stacking header configuration that makes it possible to plug in additional components on top of the board, such as OLED displays and buttons. These upgrades can be plugged right in, without the need for soldering or...