Can't get ATS or ATR from smart card using PN532 contactless reader

Using Arduino Sensors
1

I'm using Arduino mega 2560 and PN532 NFC contactless shield, wiring by UART interface. Can get UID values and Mifare from examples of PN532 library GitHub - elechouse/PN532: NFC library for Arduino using PN532 .
What I need to get is Answer to Reset (ATR) or Answer to Select (ATS) from card. Is there any way to get it ?

Thanks in advance!

2

Probably either the wiring or the code is wrong. You didn't post information for either of it.

3

@ynw21
choose one of the following reasons:

  • wiring wrong (we don't see your setup)
  • sketch wrong (doesn't mean I blame the provided free sketch - but we don't see YOUR sketch)
  • card damaged,
  • module with counterfeit PN532 chip (provide a link to the product you bought)
4

Probably I'm still finding a way to get ATS answer from card. I used examples codes and some codes I found it on internet. I don't know the codes to get ATS and I can't find function in codes to get ATS in the PN532 library. My wiring is
SDA -> 19
SCL -> 18
5v -> 5v
GND -> GND
I need codes from PN532 library or other way with C++ codes to get ATS

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5

Probably I'm still finding a way to get ATS answer from card. I used examples codes and some codes I found it on internet. I don't know the codes to get ATS and I can't find function in codes to get ATS in the PN532 library. My wiring is
SDA -> 19
SCL -> 18
5v -> 5v
GND -> GND
I need codes from PN532 library or other way with C++ codes to get ATS
card has no damage

I bought this kind of RFID shield

My wiring

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6

I mean I need to know the codes to get ATS answer. Only I get is UID values which is the provided examples from PN532 library and select_apdu command from nfc.inDataExchange() function from PN532 library. still can't find ways to get ATS or ATR

7

The RX/TX signals of the PN532 aren't on the same pins as the I2C signals. So if you connected the SDA/SCL pins to the serial pins on the Arduino you have the reason why it doesn't work.

8

now I change to SPI mode and It works with it's examples and I got select apdu, ATQA, SAK and read mifare. what I need to get is ATS or ATR answer. I still find a proper way to get ATR or ATS answer.

the library and examples : GitHub - adafruit/Adafruit-PN532: Arduino library for SPI and I2C access to the PN532 RFID/Near Field Communication chip

9

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