Adafruit Bluefruit LE SPI Friend - Bluetooth Low Energy (BLE)
Add Bluetooth Low Energy connectivity to anything with 4 or 5 GPIO pins
Built in over-the-air bootloading capability so we can keep you updated with the hottest new firmware
The Bluefruit can act like an HID Keyboard (for devices that support BLE HID)
Full control over how the device behaves, like the ability to define and manipulate your own GATT Services and Characteristics, or change the way that the device advertises itself for other Bluetooth Low Energy devices to see.
Would you like to add powerful and easy-to-use Bluetooth Low Energy to your robot, art or other electronics project? Heck yeah! With BLE now included in modern smart phones and tablets, its fun to add wireless connectivity. So what you really need is the new Adafruit Bluefruit LE SPI Friend!
The Bluefruit LE SPI Friend makes it easy to add Bluetooth Low Energy connectivity to anything with 4 or 5 GPIO pins. With SPI, you don't have to worry about baud rates, flow control, or giving up a hardware UART port. Connect to your Arduino or other microcontroller using the common four-pin SPI interface (MISO, MOSI, SCK and CS) plus a 5th GPIO pin for interrupts (to let the Arduino know when data or a response is ready).
Item Specifics ARM Cortex M0 core running at 16MHz 256KB flash memory 32KB SRAM Connection Profile: Nordic UART RX/TX Transport: SPI at up to 4MHz clock speed 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 tunneled over SPI protocol to get up and running quickly 23mm x 26mm x 5mm / 0.9" x 1" x 0.2" Weight: 3g