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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

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!


* Huuuuge amount of information on [1]
community forum!
* Arduino IDE support for ESP8266 [2]
* NodeMCU (Lua for ESP8266) webpage [3] with examples and
documentation on the Lua framework
* Don\'t forget to visit for the latest and greatest in
ESP8266 news, software and gossip! [4]

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)



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General information

Manufacturer Adafruit
Product type Electronics modules
Item number5998700
Manufacturer no.ada-2471
Sales rank in Product type Electronics modules20 of 1219

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Returns and warranty

Warranty 24 month Bring-in
30-day right of return

30-day right of return

This product may be returned within 30 days after shipment or collection. A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.

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Mail delivery

 approx. 4–6 days
1 piece(s) ordered from the supplier.


All locations

 approx. 3–5 days
1 piece(s) ordered from the supplier.

If ordered immediately.
Information subject to change.

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Adafruit HUZZAH ESP8266 Breakout Adafruit HUZZAH ESP8266 Breakout