Hi! I would like to comunicate between my pc and arduino without wires and I saw this http://cgi.ebay.it/2xWireless-Serial-Bluetooth-RF-Transceiver-Module-rs232-/270623873792?pt=LH_DefaultDomain_0&hash=item3f02709b00 . Anyone tried it with arduino? Does it work? How should I connect it to arduino?