Feasability for my RFID Reader Project

Hey All,

I work in a building that has these RFID badges to get in and out and as I am interested in all things electronic and magical I thought I would research how they work, electromagnet powers the RFID chip which then says "Hello! I am badge 1234" And the system says "Come on in".

So anyway, I bought an RFID cloner on ebay (from china) to see if I could make a copy of my badge and to my amazement it works, I now have a backup badge! But I want to expand this little cloner for an electronics project using an arduino kit but I don't know where to start.

  1. I want and LCD screen to show the read card number.
  2. I want a keypad to change the number
  3. I want the LCD to report like "success, badge is now 9999"

Hopefully this all makes sense to someone and you can advise where I start, like how do I probe the PCB inside the copier and pull out the data thats flying around, how do I write data to the chip inside by attaching to the PCB somehow?

If anyone thinks this is possible let me know, I can photograph the PCB etc assuming I am not breaking any hardware copyrights or something? I am guessing I can do what I want with the copier I bought?

Why not try something documented and more user friendly to work with?

CrossRoads:
Why not try something documented and more user friendly to work with?
PN532 NFC/RFID controller breakout board [v1.6] : ID 364 : Adafruit Industries, Unique & fun DIY electronics and kits

Unfortunately not, these don't appear to be compatible with the 125khz HID cards I am working with. I did however find a project someone has already comepleted which does pretty much what I was trying to do so i will read through all of this:-

http://www.proxclone.com/reader_cloner.html

Thanks for the help.

Whether your intentions are malicious or not it can still get you dismissed from your job.
I used to work in access control and cloning cards is a sackable offense. Read you contract of employment.

if anyone knows how I can get started it would be appreciated, the link above (that I posted) appears to be all custom and not arduino. I want to build it with well documented items as suggested by CrossRoads.

Three of the posts here have been reported to the moderators by the OP as "not constructive".

I disagree on all three counts.

Delta_G:
Look, a guy at a bank makes a copy of the vault key. He gets caught and says, "Oh my intentions weren't malicious, I was just satisfying my curiosity about how keys work." Do you really think they're going to believe him?

Call it what you want, you're trying to break someone's security here. They're not going to like that.

@AWOL Ok, explain how this post helps with my question about getting a screen to display a card number? Please do, explain the bit which is constructive?

If I wanted to break the "law" I would buy something, theres loads of tools that do this.... I WANT TO MAKE STUFF.

Your just trolling now :confused:

I do so hope you're not accusing me of trolling. (and reporting me to moderators)

Sometimes, "constructive" == "safe"

(BTW, I didn't say which three posts had been reported)

Your just trolling now

sp. "you're"

Nested reporting?

Does adafruit make other frequency readers? Or can the frequency be changed in code?

I did and I apologise, I take it back. You made me angry though and I am having a bad day. I am asking an electronics question and being accused of criminal like behavior, it's insane. I feel like your like oooh pass cards, man you must be a bad guy... Everyone in my office will think its awesome when this thing is sat on my desk and they can scan their cards and see the number cos were all geeks :confused:

To clone a card first you need a card and you need to be about 1-2cm away to read a card so this isn't as bad as is sounds and like I said you can buy these things so really, can we just get passed the whole criminal thing?

I am just here for help.

@CrossRoads I am not sure, I am still trying to find stuff but I don't really know what I am looking for.

Programming I can do, hardware not so much :frowning:

@gazeranco

You might be in wrong forum;-

Clone - 125KHz HID Proximity Tag - PM3

http://www.proxmark.org/forum/index.php

CrossRoads:
Why not try something documented and more user friendly to work with?
PN532 NFC/RFID controller breakout board [v1.6] : ID 364 : Adafruit Industries, Unique & fun DIY electronics and kits

Plan B: NFC & YUN

http://forum.arduino.cc/index.php?topic=296382

@sonnyyu

Actually, that forum might be useful, looks like other people are wanting to make custom ones so they might be able to advise on open source hardware.

Thanks,