Post by thread:[EE:] RFID reader module?

Anyone have experience with any RFID reader modules? I'm looking for one for a PIC project. THANKS! Harold FCC Rules Online at http://www.hallikainen.com ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit http://www.juno.com to sign up today! -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

TI RFID group is very reliable; although make sure and cut the read ranges they put in their data sheets down by 25% to get an approximate in-the-field range. Other than that, rfid.org will give you loads of manufacturers. If I may ask, what is the application? Madhu {Quote hidden}>-----Original Message----- >From: pic microcontroller discussion list >[.....PICLISTKILLspam@spam@MITVMA.MIT.EDU]On Behalf Of Harold Hallikainen > >Anyone have experience with any RFID reader modules? I'm looking >for one for a PIC project. > >THANKS! > >Harold -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

May I email you offlist about something unrelated Harold? Thanks, Josh Koffman -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams Harold Hallikainen wrote: <snip> -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body

On Wed, 22 Oct 2003, Madhu Annapragada wrote: > TI RFID group is very reliable; although make sure and cut the read ranges > they put in their data sheets down by 25% to get an approximate in-the-field > range. Other than that, rfid.org will give you loads of manufacturers. If I > may ask, what is the application? > Madhu The company I work for makes a RFID tag reader, based on the TI ASIC and a PIC. While the TI RFID group may be reliable, their documentation *IS NOT*. We had to get internal documentation because the normal documentation was wrong, or did not document what was actually needed. Plus lots of experimentation. And throw away any chips before Rev 3. (The magic needed to make them work just isn't worth it...) Bill -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservspam_OUTTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

On a related note, I want a RFID system that could copy the RFID information from nearby cars, keychains, wallets and emulate it on command for free parking, toll booths, gas, and credit card information... It amazes me how little protection is built into current RFID implementations these days. The people implementing these systems assume that security through obscurity (knowledge that is not widespread) is enough, and many of these tags are /only/ 64 bit or larger numbers - no command/response, no encryption, no authorization. Beam a radio wave at it and it yields its secrets... The problem is that RFID is a good system, but current implementations are bad. Once they become widely cracked people will associate RFID with insecurity, and throw it all away. Of course, companies will come up with trademarked names for their particular systems, and dissassociate the name from RFID, but the damage will have been done by then. -Adam Marcelo Puhl wrote: {Quote hidden}>On 22 Oct 2003 at 19:42, Harold Hallikainen wrote: > > > >>Anyone have experience with any RFID reader modules? I'm looking for one for >>a PIC project. >> >> >> > > On a related question, I'm looking for a (perhaps RFID) system that >could identify a car passing @100km/h on a road distant up to 200m away. > > Is there such a thing? Ideas on how to make one? > > Thanks. > Mark, PY3SS > >-- >http://www.piclist.com hint: To leave the PICList >piclist-unsubscribe-requestspam_OUTmitvma.mit.edu > > > > > -- http://www.piclist.com hint: To leave the PICList @spam@piclist-unsubscribe-requestKILLspammitvma.mit.edu

part 1 769 bytes content-type:text/plain; x-avg-checked=avg-ok-6F315741; charset=us-ascii; format=flowed (unknown type 8bit not decoded) Definitely powered, I' ve already replaced mine -dead and no, they didn't let me keep it for dissection (sad face) D At 07:49 PM 10/23/03 -0500, michael brown wrote: >Josh Koffman wrote: > > There definately is such a thing. I don't know anything about it, but > > look for information on how the automatic transponders for toll roads > > work. My guess is a higher power energizing beam, and a directional > > antenna. > >The ones here houston use a battery powered transmitter that responds to >the toll booth signal. snip -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads part 2 323 bytes content-type:text/plain; charset=us-ascii; x-avg=cert; x-avg-checked=avg-ok-6F315741 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.530 / Virus Database: 325 - Release Date: 10/22/03 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads