Sorry, I forgot to include the [PIC] on my previous post so some may be getting this a second time. I have an application that I prototyped on a Parallax Javelin and an A7 EB500 Bluetooth card. It uses Bluetooth SPP protocol exclusively. I now want to commercialize this product, which means dramatically reducing the cost and size of the unit. I am still not sure what the best way to go is but I am thinking about porting the application to one of the PICs that have built-in USB capability and plug a USB Bluetooth dongle into the card because they are so inexpensive now. So, is there a flaw in this plan or is there a more intelligent way to approach the problem? I wonder about FCC certification, for example. Also, I do not know anything yet about using the PIC USB interface. I will start to research that soon but if anyone has any advice or knows why this might be hard/impossible/unfeasible, I would be interested in hearing about it. Or maybe there is just a much better solution to the problem. Also, if someone has specific experience doing this and would be interested in a small contract, I would like to talk to you. -- don -- DC French -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist