RC522

[c1p81]

i would like to use the rfid reader rc522 with the Ethernet Shield on Arduino but they share the digital pin 11,12 and 13. It's possible to change the rfid reader pins in your library (maybe changing PCD_TRANSCEIVE and others)????
thank you

Luca Innocenti from Italy

[iedame]

MISO (12), MOSI (11) and SCK (13) pins may be shared. SS must be exclusive (pin 10), so in your sketch:

#define SS_PIN 10 // change here if sketch is using #define
#define RST_PIN 9

RFID rfid(SS_PIN, RST_PIN); // or here otherwise

Change SS_PIN from 10 (pin used by the ethernet shield SS as you may see here: http://shieldlist.org/arduino/ethernet-v5) to any other digital pin. It should work.

More reference regarding SPI may be found here: http://arduino.cc/en/Reference/SPI

[c1p81]

thank you
works fine with SS_PIN=6 and RST_PIN= 7

[WA4OSH]

c1p81,
It looks like your issue has been answered. Can you close this?

Konrad

[WA4OSH]

Thank you

[c1p81]

sorry for delay

L

2014-04-15 9:54 GMT+02:00 Konrad Roeder notifications@github.com:

Thank you

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Reply to this email directly or view it on GitHubhttps://github.com//issues/6#issuecomment-40454659
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[sandeepthakur10]

I am having the same problem.
I am using ARDUINO UNO + ETHERNET SHIELD + RFID R522
I am not able to change the reset and ss pin of RFID.
Can you please help me. I am using rfid example code from arduino example and cannt find where to the ss and rest pin in code.
Kindly suggest me a way.