Would you like to add powerful and easy-to-use Bluetooth® Low Energy to your robot, art or other electronics project? Heck yeah! With Bluetooth® Low Energy 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...