Datasheet

The board is capable of much more than just sending strings over the air! Thanks to an easy to learn AT command set (http://adafru.it/iCG), you
have full control over how the device behaves, including the ability to define and manipulate your own GATT Services and
Characteristics (http://adafru.it/iCH), or change the way that the device advertises itself for other Bluetooth Low Energy devices to see. You can
also use the AT commands to query the die temperature, check the battery voltage, and more, check the connection RSSI or MAC address, and
tons more. Really, way too long to list here!
Download our free Android/iOS app and you're ready to rock!
Using our Bluefruit iOS App (http://adafru.it/iCi) or Android App (http://adafru.it/f4G), you can quickly get your project prototyped by using your iOS
or Android phone/tablet as a controller. We have a color picker (http://adafru.it/iCI), quaternion/accelerometer/gyro/magnetometer or location
(GPS) (http://adafru.it/iCI), and an 8-button control game pad (http://adafru.it/iCI).
You can do a lot more too!
The Bluefruit can also act like an HID Keyboard (http://adafru.it/iCJ) (for devices that support BLE HID)
Can become a BLE Heart Rate Monitor (http://adafru.it/iCK) (a standard profile for BLE) - you just need to add the pulse-detection circuitry
Turn it into a UriBeacon (http://adafru.it/iCL), the Google standard for Bluetooth LE beacons. Just power it and the 'Friend will bleep out a
URL to any nearby devices with the UriBeacon app installed.
Built in over-the-air bootloading capability so we can keep you updated with the hottest new firmware. (http://adafru.it/iCM) Use any Android
or iOS device to get updates and install them!
Why Use Adafruit's Module?
There are plenty of BLE modules out there, with varying quality on the HW design as well as the firmware.
One of the biggest advantages of the Adafruit Bluefruit LE family is that we wrote all of the firmware running on the devices ourselves from
scratch.
We control every line of code that runs on our modules ... and so we aren't at the mercy of any third party vendors who may or may not be
interested in keeping their code up to date or catering to our customer's needs.
Because we control everything about the product, we add features that are important to our customers, can solve any issues that do come up
without begging any 3rd parties, and we can even change Bluetooth SoCs entirely if the need ever arises!
Technical Specifications
ARM Cortex M0 core running at 16MHz
256KB flash memory
32KB SRAM
Peak current draw
Transport: UART @ 9600 baud with HW flow control (CTS+RTS required!)
5V-safe inputs (Arduino Uno friendly, etc.)
On-board 3.3V voltage regulation
Bootloader with support for safe OTA firmware updates
Easy AT command set to get up and running quickly
© Adafruit Industries
https://learn.adafruit.com/introducing-the-adafruit-bluefruit-le-uart-
friend
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