1  ---
 2  layout: download
 3  board_id: "feather_huzzah"
 4  title: "Feather Huzzah Download"
 5  name: "Feather Huzzah"
 6  manufacturer: "Adafruit"
 7  board_url: ""
 8  board_image: "feather_huzzah.jpg"
 9  features:
10    - Feather-compatible
11    - Battery Charging
12    - Wi-Fi
13  ---
14  
15  Feather from Adafruit, like its namesake it is thin, light, and lets you fly! Adafruit designed Feather to be an open standard for portable microcontroller cores.
16  
17  This is the **Adafruit Feather HUZZAH ESP8266** - Adafruit's take on an 'all-in-one' ESP8266 WiFi development board with built in USB and battery charging. It is an ESP8266 WiFi module with all the extras.
18  
19  At the Feather HUZZAH's heart is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can program the microcontroller using CircuitPython 3.  **NOTE: CIRCUITPYTHON 3 IS ONLY SUPPORTED.** Wired up is a high-quality SiLabs CP2104 USB-Serial chip that can upload code at a blistering 921600 baud for fast development time. It also has auto-reset so no noodling with pins and reset button pressings. The CP2104 has better driver support than the CH340 and can do very high speeds without stability issues.
20  
21  To make it easy to use for portable projects, there is a connector for 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run  from the micro USB connector. If you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when it is available.
22  
23  **Specs!**
24  
25  *   Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
26  *   Light as a (large?) feather - 9.7 grams
27  *   ESP8266 @ 80MHz with 3.3V logic/power
28  *   4MB of FLASH (32 MBit)
29  *   Built in WiFi 802.11 b/g/n
30  *   3.3V regulator with 500mA peak current output
31  *   CP2104 USB-Serial converter onboard with 921600 max baudrate for speedy uploading
32  *   Auto-reset support for getting into bootload mode before firmware upload
33  *   9 x GPIO pins - can also be used as I2C and SPI
34  *   1 x analog inputs 1.0V max
35  *   Built in 100mA LiPoly charger with charging status indicator LED, can also cut a trace to disable the charger
36  *   Pin #0 red LED for general purpose blinking. Pin #2 blue LED for bootloading debug & general purpose blinking
37  *   Power/enable pin
38  *   4 mounting holes
39  *   Reset button
40  
41  Comes fully assembled and tested, with a USB interface. Includes headers so you can solder it in and plug into a solderless breadboard.
42  
43  ## Purchase
44  * [Adafruit](https://www.adafruit.com/product/2821)
45  
46  ## Contribute
47  
48  Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_board/{{ page.board_id }}.md).