Farm magazines do sell just such a device, you know. -- Lawrence Lile SavanaPics@AOL.COM Sent by: pic microcontroller discussion list 12/16/2003 08:04 AM Please respond to pic microcontroller discussion list To: PICLIST@MITVMA.MIT.EDU cc: Subject: Re: vehicle detect May sound a little crude, but what about using a rubber hose sealed at one end and fitted with a pressure sensor at the other ? there are many PIC projects that use RF transmitters so you could even do it wireless. Eddie, kc4awz -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body