Thomas McGahee wrote: > > One way that I handle this problem with some of my homebrew > 1 wire devices is to have a simple protocol that allows me > to send out an "are you there" code followed by an address. > If a device with that address is on the bus, then it responds. The trouble with the DS18S20 is that there is a 48 bit ID which would take some time to sift through on a random basis. -- Best regards Tony mICros http://www.bubblesoftonline.com mailto:sales@bubblesoftonline.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body