PN532 not responding

Other Hardware Sensors
1

Dear all I am using PN532 and it cannot be read by the arduino i used i2c communication with the following connection
pin 2 to IRq
pin3 to Reset
scl to A5
SDA to A4

I used "realmifareclassic" from "Adafruit_PN532.h"

I made my changes highliting the following

//#define PN532_SCK  (2)
//#define PN532_MOSI (3)
//#define PN532_SS   (4)
//#define PN532_MISO (5)

//Adafruit_PN532 nfc(PN532_SCK, PN532_MISO, PN532_MOSI, PN532_SS);

and unhighlighting the following

#define PN532_IRQ   (2)
#define PN532_RESET (3)  // Not connected by default on the NFC Shield
Adafruit_PN532 nfc(PN532_IRQ, PN532_RESET);

I don't know serial monitor always printing "pn53# not found"

so someone please help me with this issue

Thanks in advance

2

Do you have the jumpers set fot I2C?
Do you have pull-up resistors of SCL, SDA

3

no I don't have pull up resistors

4

i will purchase it, thanks, I will test and inform you

5

still no result, I am using version 3, could anbody help?

6

Do you mean version 1.3?
Which arduino board are you using?
You need to post your full code

7

I want to thank I solved the issue It was about wiring issue that I didn't realize except at a late time... thanks for your time

8

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