ADAFRUIT Feather HUZZAH WiFi Development Board 2821

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Mfr. Prt No.:

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 1245505
Product description ADAFRUIT Feather HUZZAH WiFi Development Board 2821
Manufacturer / Brand ADAFRUIT INDUSTRIES
Manufacturer part number 2821

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 1245505
Product description ADAFRUIT Feather HUZZAH WiFi Development Board 2821
Manufacturer / Brand ADAFRUIT INDUSTRIES
Manufacturer part number 2821

The foregoing information relates to product sold on, or after, the date shown below.


Date Jul 13, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132

Product Details

Adafruit Feather HUZZAH Development Boards

Adafruit Feather HUZZAH with ESP8266

What is Adafruit Feather?
Adafruit Feather is a family of thin, lightweight development boards made for prototyping. They are designed to be used on their own, or are stackable for multiple functionalities. Feather boards can be both battery operated or have a microUSB port for a PSU to be connected.
There is a family of products surrounding the Adafruit Feather range to help you get your projects up and running.

More about the Feather HUZZAH with ESP8266 …
This “all-in-one” WiFi development board features the ESP8266 WiFi microcontroller (MCU) clocked at 80 MHz and at 3.3 V logic. It’s connectivity makes the Feather HUZZAH board of IoT (Internet of Things) applications. There is also an Arduino IDE to help you program your board.
The Silicon Labs CP2104 USB-to-Seral chip which has the ability to upload code at 921600Bd, perfect for high-speed prototyping and developing.

It’s portable!
You have the option to use either a 3.7V Lithium polymer battery, or connect to a PSU via microUSB. If you choose to power your Feather HUZZAH board by battery, it makes it portable. So you can take it with you, wherever you need to. If you need to recharge it at any point, just plug it in via the microUSB and it will recharge.


Lipoly battery and USB cable not included.

Here’s the facts & figures:
MCU: ESP8266 @ 80MHz with 3.3V logic/power
Memory: 4MB of FLASH (32 MBit)
WiFi: Built in 802.11 b/g/n
Power: 3.3V regulator with 500mA peak current output
USB-Serial Converter: CP2104 with 921600 max baudrate for speedy uploading
GPIO: 9 x pins - can also be used as I2C and SPI
Analogue inputs: 1 x 1.0V max
Size: 51 x 23 x 8 mm (without headers)
Featherweight: 9.7g
Charging: Built in 100mA LiPoly charger with charging status indicator light


Attribute Value
Classification Development Board
Kit Name Feather HUZZAH
Technology WiFi
Processor Family Name SAM
Processor Part Number ESP8266
Processor Type MCU
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