A FT-232 USB to serial board is used to program the Arduino. A standard Bluetooth module has to have HID firmware installed. [Dastardly] makes a homemade daughterboard–er, shield–to connect ...

Once paired, these modules relay serial information from your smart device to the dev board and vice versa. Just reverse the receive (Rx) and transmit (Tx) lines between your Arduino and Bluetooth ...

If you want to wirelessly communicate between devices, WiFi and Bluetooth ... one Arduino if you had too and could manage the power, RF, and other issues involved. The breakout board the module ...