Quoting YES NOPE9 : >> I've been thinking that a low-cost bluetooth headset might be an >> interesting solution for this sort of problem. Depending on what you >> want to do, you could use DTMF or modem tones over the audio channel, >> or you might be able to get by with just the assorted buttons on the >> headset; it depends on what sort of APIs to BT are on the device >> you're trying to communicate with. >> (hmm. does anyone know of BT host-side software that can decode modem >> tones from a BT audio connection and provide the data in a more >> program-friendly manner? DTMF, KCS, Bell 103, whatever?) >> >> There are loads of BT headsets well under $10... >> >> BillW > > What a great idea ! I will check with my Linux friends to see what =20 > it takes to > #1 capture audio, convert the DTMF and produce digital data. > #2 convert digital data to DTMF, ship it as bluetooth audio. > 99gus gusNWdenver > -- That sounds quite a roundabout way to do things, considering that you =20 can get BT serial modules for under $10. I expect a BT audio headset =20 will use around the same power as a BT serial module. And, at least =20 on Android, you'll find it easier to communicate with BT using SPP =20 (rather than trying to extract and decode Audio). What sort of, and how much data are you trying to send back and forth? Cheers, -Neil. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .