Adafruit Industries Adafruit Industries Bluefruit LE Friend Bluetooth Low Energy 4.0 - nRF51822
The Bluefruit LE Friend is your new BLE BFF! This USB-to-BLE board makes it easy to get your computer talking to your BLE enabled phone or tablet using a standard serial/UART connection. In it's simplest form, it works on the same principle as a common USB/Serial adapter (the FTDI Friend, for example!). Any data that you enter via your favorite terminal emulator on your development machine will be transferred over the air to the connected phone or tablet, and vice versa, as a basic 'UART' connection.
Adafruit Industries Bluefruit LE Friend Bluetooth Low Energy 4.0 - nRF51822
Usually ships in 1-3 business days.