Take a look at the Xbee...they are TTL serial, so slap on a RS232 driver and you are there. www.maxstream.net Mike Harrison wrote: On Thu, 3 Nov 2005 08:46:07 -0500, you wrote: >I have a small sensor board that passes data from a pair of sensors to a remote app less than 10 meters from the sensor location. This is currently done with a RS232 link. The link is two-way, in that the app requests data and the sensor board responds. There is no handshaking of any type. I would like to eliminate this cabled link by transmitting the data via bluetooth from/to the remote app. The link must be pretty reliable. It IS NECESSARY for the link to ultimately present the data to the app and to the sensor board as RS232 data. As usual, cost is an issue. > >Is BT the way to go here? What alternate wireless solution(s) should I consider? BT is probably serious overkill for this, but the availability of cheap Bluetooth USB dongles may help (if you can figure out how to talk to them - not sure how standardised this is) - I'd look at short-range 433/869MHz modules or possibly Zigbee. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist