HUZZAH ESP8266 Breakout Board Adafruit HUZZAH ESP8266 Breakout Board is an 80MHz microcontroller with a full Wi-Fi front-end (both as client and access point) and TCP/IP stack with DNS support. The ESP8266 is breadboard friendly, has an onboard 500mA 3.3V regulator, level shifting and is CE or FCC emitter certified. It's designed to be super easy and a lot of fun. The ESP8266 is a certified module with an onboard antenna and plenty of pins, soldered onto designed breakout PCBs.Learn More