Arduino HF/UHF RFID Reader

Projects General Guidance
1

I'm looking for a HF/UHF RFID reader I can interface with via Arduino. I've been using 125kHz solutions which, though they work great, just don't have the range I'd like them to.

Ideally, I'd like an RFID reader that can pick up a passive RFID tag that is in a wallet/pocket and within 1-2m, without the user having to present the tag to the reader. This will be used for an RFID door entry system, and I'd like to set it up in such a way that as soon as you walk up to the door it will unlock. I would also like the reader to be under $75 if possible. Active tag systems are a possibility as well, so long as the reader and 5 tags can be had for under $100. Though perhaps a cheap solution for this is unobtainable?

I've been searching constantly for hours but have yet to find anything that I think will fit my needs, so any help is appreciated.
The rest of the system is already in place, so the easier it is to just drop in a new RFID reader, the happier I'll be. It's using an ID-12 RFID reader at the moment.

Thanks

2

I don't think you can buy one like that for the price you are after. You could possibly make your own but would probbly have to design it yourself.

3

I wonder if ezpass posts their schematics?? Lol probably not, but maybe someone has figured it out and posted on the web
you would definetly need a decent sized antenna and proper frequency to power a device 5ft away enough to transmit back

4

Hehe the ezpass is battery powered actually and uses a 915mhz 500kbit/s proprietary protocol
up for making a 915mhz rfid card? Lol
you will probably have to leave the rfid tag range and go into small transmitters

5

I know this is a old post and all but i have a couple of Questions can something like ezpass be done with arduinos? just wondering if anyone done anything like this not RFID cards i mean but something like it.

Joseph