Bluetooth bidirectional communication?

Hello,

I've seen this module:

http://www.sparkfun.com/commerce/product_info.php?products_id=582

Is bidirectional data communication possible using bluetooth? I would like to use to control a car wireless but alse receive data back from the car simutaniously.

Thanks in advance

Is that "wireless" as in "music receiver" or as in "telephone"?

As best I can tell from a quick scan of the datasheet, those modules support only a simple async serial data stream (i.e., "RS-232 cable replacement"). No audio, so a phone may not even see it as a suitable device to pair with if it only supports BT for headset use.

If the phone supports Dial Up Networking (aka "DUN", using the phone as a modem), though, you may be able to use it to let the Arduino "phone home" while you're driving.

Ran

The idea is to send data wireless between two of these modules.

From module A → module B some simple control commands
From module B–> module A some data (pictures with a small size)

I would like to know if this sending can be done simultaneously (bidirectional) (A <–>B)

If the BT device at the other end supports data transfer, yes. My simple, cheap cellphone doesn't: it only uses BT for a headset connection.

You need to investigate whether yours does.

Ran