I ran across the [BTM222 bluetooth module with AT command set (about $17.50) and a [breakout/level conversion board for it. I don’t know anything about the BTM222, but this might make a cheaper-yet bluetooth interface for microcontrollers.](http://www.ulrichradig.de/home/index.php/projekte/bluetooth-dongle-fuer-den-mikrocontroller)](it-wns.de steht zum Verkauf)
Interesting, thanks jepler I’m always looking for lower cost wireless links
related (still looking for an english/portugues/french website):