Adafruit esp8266 smt module breakout board esp 12 adafruit 2471 the adafruit huzzah esp8266 wifi breakout boards use the internet of things chip of choice the esp8266 running at 80mhz with 4mbytes of flash memory 9 x gpio pins and 1 x analogue input adafruit have produced these breadboard friendly breakouts with an on board antenna so you can get to know this very successful chip they come pre programmed with nodemcu lua firmware which lets you perform complex network tasks in a smal