RFID Reader

six1 · Joined: 27 Feb 2009 Posts: 553

...Page is in German, but there are links to Raspberry C Code and others...

http://regnerischernachmittag.wordpress.com/2013/08/03/5euro-rfidnfc-modul-rc522-zum-auslesen-von-mifare-tags/

albertsm · Joined: 09 Apr 2004 Posts: 6197 Location: Holland

the module sl30 has code included : http://www.stronglink-rfid.com/download/SampleCode/SL030/AVR-SL030.zip
it should be fairly simple to translate it.
if have no module but it would not take more than an hour to convert it to bascom.

i.dobson · Posted: Wed Aug 06, 2014 6:07 pm Post subject:

Hi,

That's what I'm seeing at the moment. Although I've not spent much time working on mine the documentation that I've read isn't the best.

Regards
Ian Dobson

protoncek · Joined: 16 May 2011 Posts: 52 Location: Slovenia

If you mean datasheet of RC522 i think it's really somewhat ... funny. It doesn't explain many functions this chip has so it's hard to configure it, and there's no sample initializaton procedure in datasheet.
So, i think that only possibility is that you know C language and translate one of C examples, since there are easy to find.

I really hope that you will be succesfull in Bascom, Ian!

Hkipnik · Joined: 03 May 2010 Posts: 20

Hello,
here a small Program for the RC522 Chip,
it read the Tag ID

Best regards
Hkipnik

i.dobson · Posted: Sun Sep 07, 2014 8:51 am Post subject:

Hi Hkipnik,

Thanks for the code, I'll try it out when I get the time.

I wanted to write my own code but I've sent most of my time getting the i2c bootloader working.

Regards
Ian Dobson

protoncek · Joined: 16 May 2011 Posts: 52 Location: Slovenia

It works! Great work, Hkipnik!
For a start, showing ID is quite OK. Range is as expected, not very big (around 3.4cm), but i guess it's what you pay for...

(I still hav to figure it out why one series of cards work and other doesn't, but i bought them from ebay, so i guess one option is that they are defect...)
UPDATE: i found out that those "non-working" cards are actually 125khz ones, so chinaman sent me wrong ones Evil or Very Mad

So, all works like a charm!

Many thanks!

albertsm · Joined: 09 Apr 2004 Posts: 6197 Location: Holland

super Hkipnik ! Thanks for sharing.

It seems a capable chip with i2c, spi and uart inferfact

I include a link to the PDF for the ones interested.
http://www.nxp.com/documents/data_sheet/MFRC522.pdf

Hkipnik · Joined: 03 May 2010 Posts: 20

Hello,
here is a Demo to read and write Data to the Tag.

Best regards
Hkipnik

albertsm · Joined: 09 Apr 2004 Posts: 6197 Location: Holland

excellent update, thanks ! Never worked out how to write cards myself so it great to have some working code.

protoncek · Joined: 16 May 2011 Posts: 52 Location: Slovenia

Hello!

It seems that i can't get it to write on my tags...program reports "Storage volume KByte 8, which means 1kb of storage, i did uncomment line for write data and terminal says "Write data" 3 times, but still i only get tag ID...

any clue what's wrong? i have tags and cards from ebay, card type 0400.

Thanks!

Best regards, Paul

Hkipnik · Joined: 03 May 2010 Posts: 20

Hello Paul,
the program supported only 4Byte Tag ID,
your Tag have certainly 8Byte ID.

if the first Byte-ID H88,
the Chip has 8Byte ID

Best regards
Hkipnik

protoncek · Joined: 16 May 2011 Posts: 52 Location: Slovenia

Hi!

well, my ID's are, say, 94 70 26 EB, or 75 02 F5 2D, and 04 0B 5A 2E.... that's what program shows.

cards are Mifare Classic 1k S50, like this ones:

http://www.ebay.com/itm/5-x-NFC-thin-smart-card-tag-tags-Mifare-1k-S50-IC-13-56MHz-Read-Write-RFID-/321189711006

Thanks!

Best regards, Paul

Hkipnik · Joined: 03 May 2010 Posts: 20

Hello Paul,
try in the Sub RC522_auth the Password
to place on A0 - A1 - A2 - A3 - A4 - A5

or try other Tag

protoncek · Joined: 16 May 2011 Posts: 52 Location: Slovenia

Nope...nothing.
At the moment i have only one type of cards at home. Maybe i will order some other type once, but for now the main thing is that reading ID works, and that alone is a great job from you!

What kind of card did you use?

Thanks again!