http://www.ti.com/snc/docs/news/rel08.htm The Speedpass stuff is from TI. I have one and love it except that Mobil typically charges a few pennies more per gallon. Looked at getting a reader for the house since I already had the keys from Mobil. Was too costly for a house toy. chuckc pic microcontroller discussion list wrote: > From what little I have seen it seems to be exactly the same as the gas station "speedpass" devices. The speedpass is an RF readable credit card. Inside it's plastic housing is a glasslike rod about 3mm x 30mm which has a coil and some silicon chip visable inside. There is no battery. It gets power from the RF interrogation field. Lifetime is the life of the ROM. I don't know freq or data size. I am sure somebody is selling the technology. Sherpa Doug > -----Original Message----- > From: Giles [mailto:programmer1@HOTMAIL.COM] > Sent: Thursday, February 14, 2002 4:40 PM > To: PICLIST@MITVMA.MIT.EDU > Subject: [EE]: Identachip > > > Ok, does anyone know about the Identachip stuff? > For those who have not heard of it, it is the "microchipping > of your pet" > stuff. > They inject a small transponder or something into your pet > and it has a > number that can be looked up. > It is also used in Asset Tracking. > > 1. How does it work? > 2. Is their a lifespan of the device? Does it have a battery? > 3. What is the frequency, range, and general limitations? > 4. Is any of this technology avalible for OEMs? > 5. How much data can be stored? > > Some links to this type of stuff: > http://www.avidplc.com/assettrac/what.htm > http://www.hitec-id.net/ > http://www.identichip.com/ > http://www.homeagainid.com/ > http://www.electronicidinc.com/ > www.trovan.com (this link looks dead, but the search pointed to it) > > Best regards, > Giles > > -- > 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 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body