Add Internet to your next project with an adorable, bite-sized WiFi microcontroller, at a price you like! The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with DNS support as well. While this chip has been very popular, its also been very difficult to use. Most of the low cost modules are not breadboard friendly, don't have an onboard 500mA 3.3V regulator or level shifting, and aren't CE or FCC emitter certified....UNTIL NOW!

The Adafruit HUZZAH ESP8266 breakout is what we designed to make working with this chip super easy and a lot of fun. We took a certified module with an onboard antenna, and plenty of pins, and soldered it onto our designed breakout PCBs. We added in:

• Reset button,
• User button that can also put the chip into bootloading mode,
• Red LED you can blink,
• Level shifting on the UART and reset pin,
• 3.3V out, 500mA regulator (you'll want to assume the ESP8266 can draw up to 250mA so budget accordingly)
• Two diode-protected power inputs (one for a USB cable, another for a battery)

Two parallel, breadboard-friendly breakouts on either side give you access to:

• 1 x Analog input (1.8V max)
• 9 x GPIO (3.3V logic), which can also be used for I2C or SPI
• 2 x UART pins
• 2 x 3-12V power inputs, reset, enable, LDO-disable, 3.3V output

One breakout at the end has an "FTDI" pinout so you can plug in an FTDI or console cable to upload software and read/write debugging information via the UART. When you're done with your coding, remove the cable, and this little module can be embeded into your project box.

Each module comes pre-loaded with NodeMCU's Lua interpreter (NodeMCU 0.9.5 build 20150318 / Lua 5.1.4 to be specific), you can run commands, and 'save' Lua programs directly to the module's Flash using a USB-Serial converter cable. But, if you'd like, you can skip Lua and go direct to using the Arduino IDE. Once you download the ESP8266 core, you can treat it just like a microcontroller+WiFi board, no other processors needed!

Each order comes with one assembled and tested HUZZAH ESP8266 breakout board, and a stick of 0.1" header that you can solder on and plug the breakout into a breadboard. A soldering iron and solder are required for that, and aren't included. Solderless breadboard also not included. You'll really want a USB-serial cable such as a USB console cable (good for Windows, not suggested for MacOSX users),  FTDI Friend (great for any OS), or FTDI cable (great for any OS)  to upload software to the HUZZAH ESP8266! Our essential tutorial has wiring, pinouts, assembly, downloads, and more!

• TECHNICAL DETAILS

  • Dimensions: 25mm x 38mm x 5mm / 1" x 1.5" x 0.2"
  • Weight: 5g
  • Pre-programmed with NodeMCU 0.9.5 build 20150318 (Lua 5.1.4)
  • ESP8266 specification sheet
  • FCC test report for the module used on this breakout (Contains FCC ID:  2ADUIESP-12)
  • CE test report for the module used on this breakout
  • Huuuuge amount of information on http://www.esp8266.com/ community forum!
  • NodeMCU (Lua for ESP8266) webpage with examples and documentation on the Lua framework
  • Arduino IDE support for ESP8266
  • Don't forget to visit esp8266.com for the latest and greatest in ESP8266 news, software and gossip!

  You may get a blue or black module, they are identical.

• LEARN

  

  Adafruit IO Basics: Digital Input

  Reach out and touch Adafruit IO!

  

  Adafruit IO Basics: Digital Output

  Turn on a lamp from anywhere!

  

  Adafruit HUZZAH ESP8266 breakout

  Adorable bite-sized WiFi microcontroller, at a price you like!

  

  ESP8266 Temperature / Humidity Webserver

  Using the ESP8266 as a microcontroller as well as a low cost wifi server.

  

  Adding Third Party Boards to the Arduino v1.6.4+ IDE

  Easily add support for Adafruit boards to Arduino v1.6.4!

  

  Building and Running MicroPython on the ESP8266

  How to compile and install MicroPython for the ESP8266 WiFi breakout!

  

  Huzzah Weather Display

  a simple WiFi OLED weather display

  

  Home Automation in the Cloud with the ESP8266 & Adafruit IO

  Build a simple home automation system & control it from anywhere!

  

  Using IFTTT with Adafruit IO to Make an IoT Door Detector

  Know who is comin' and goin'

  

  Remote controlled door lock using a fingerprint sensor & Adafruit IO

  Open a door lock from anywhere by simply using your fingerprint!

  

  Remote Control with the Huzzah + Adafruit.io

  Set up one Huzzah to control another, anywhere on Earth!

  

  MQTT, Adafruit.IO & You!

  Learn to love the stateful, low-bandwidth pubsub protocol.

  

  Automatic Twitch On-Air Sign

  Know when your favorite streamer is twitchin'