Adafruit Feather 32u4 FONA

SKU: ADA3027 Brand: Adafruit

Retired Product

Replaced by: 3G

This product has been replaced by: 3G
This product is no longer available. This page is only for reference.

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! Adafruit designed Feather to be a new standard for portable microcontroller cores.

This is the Adafruit Feather 32u4 FONA - Adafruit's take on an 'all-in-one' Arduino-compatible + audio/sms/data capable cellular with built in USB and battery charging. Its an Adafruit Feather 32u4 with a FONA800 module, ready to rock! Adafruit have other boards and accessories in the Feather family, check'em out here.

At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3V logic, a chip setup Adafruit have had tons of experience with as it's the same as the Flora. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc.

Since you'll be taking this on the road, Adafruit added a connector for any of Adafruit's 3.7V Lithium polymer batteries and built in battery charging. A 500mAh+ Lipoly battery is required for use, it keeps the cellular module happy during the high current spikes. Plug the Feather into microUSB to charge at 500mA.

Here's some handy specs! Like all Feather 32u4's you get:

Measures 2.4" x 0.9" x 0.28" (61mm x 23mm x 7mm) without headers soldered in
Light as a (large?) feather - 8.2 grams
ATmega32u4 @ 8MHz with 3.3V logic/power
3.3V regulator with 500mA peak current output
USB native support, comes with USB bootloader and serial port debugging
You also get tons of pins - 20 GPIO pins
Hardware Serial, hardware I2C, hardware SPI support
8 x PWM pins
10 x analog inputs
Built in 500mA lipoly charger with charging status indicator LED
Pin #13 red LED for general purpose blinking
Power/enable pin for the 3.3V regulator
4 mounting holes
Reset button

Connect your Feather to the Internet or make phone calls with Adafruit's trusted-and-tested FONA module. At the heart is a GSM cellular module (we use the latest SIM800) the size of a postage stamp. This module can do just about everything.

Quad-band 850/900/1800/1900MHz - connect onto any global GSM network with any 2G SIM (in the USA, T-Mobile is suggested)
Make and receive voice calls using an external 8Ω speaker + electret microphone
Send and receive SMS messages
Send and receive GPRS data (TCP/IP, HTTP, etc.)
Scan and receive FM radio broadcasts (yeah, Adafruit don't exactly know why this was included but it works really well)
AT command interface with "auto baud" detection
Pair-able Bluetooth client interface with SPP (for controlling the module) as well as audio.

You will also need some required accessories to make Feather FONA work. These are not included!

SIM Card! - A 2G Mini SIM card is required to do anything on the cellular network. US AT&T no longer sells 2G SIMs and will shut off their 2G network, so for American customers Adafruit recommend any T-Mobile or reseller (TING, SIMPLE mobile, etc) that uses the T-Mobile network.
Lipoly Battery - 500mAh or larger! This 500mAh battery, or this 1200mAh will work great.
MicroUSB cable for charging the battery.
External Antenna - Adafruit like this slim sticker-type, which plugs right in and has a nice long cable to keep the RF away from the feather. Alternatively, this straight SMA one or this right-angle SMA one will work but you'll also need a uFL to SMA adapter cable so you can connect to your SMA antenna
External Mic & Speaker - If you want to make phone calls, you'll also need this electret mic and mini 8 ohm speaker

Check out Adafruit's tutorial for all sorts of details, including schematics, files, IDE instructions, power management and more!

Technical Details

2.4" x 0.9" x 0.28" / 61mm x 23mm x 7mm
Weight: 8.2g
Schematic, Datasheets, EagleCAD PCB files, and Fritzing available in the product tutorial

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Retired

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