PN532 :Didn't find PN53x board

Projects Programming
1

Hi.
I have ESP32 Development Board >My board<
I try to use PN532 NFC RFID V3. >My PN532<
this is how I connect PN532 to my board >wiring<

The LED on the PN532 is on .

serial monitor:
Hello
"Didn't find PN53x board" >Serial Monitor<

Help me please

#include <Wire.h>
#include <SPI.h>
#include <Adafruit_PN532.h>

#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);


void setup(void) {
  Serial.begin(115200);


  Serial.println("Hello!");

  nfc.begin();

  uint32_t versiondata = nfc.getFirmwareVersion();
  if (! versiondata) {
    Serial.println("Didn't find PN53x board");
    while (1); 
  }
  
  Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX); 
  Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC); 
  Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
  
  nfc.SAMConfig();
  
  Serial.println("Waiting for an ISO14443A Card ...");
}


void loop(void) {
  uint8_t success;
  uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  
  uint8_t uidLength;                        
    
 
  success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
  
  if (success) {
    Serial.println("Found an ISO14443A card");
    Serial.print("  UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
    Serial.print("  UID Value: ");
    nfc.PrintHex(uid, uidLength);
    
    if (uidLength == 4)
    {
      // We probably have a Mifare Classic card ... 
      uint32_t cardid = uid[0];
      cardid <<= 8;
      cardid |= uid[1];
      cardid <<= 8;
      cardid |= uid[2];  
      cardid <<= 8;
      cardid |= uid[3]; 
      Serial.print("Seems to be a Mifare Classic card #");
      Serial.println(cardid);
    }
    Serial.println("");
    delay(2000);
  }
}
1 Like
2

The ESP32 does not have the same pinout as an Arduino Uno so using pins 2,3,4,5 is almost certainly wrong. You also don't say how you have it configured (SPI or I2C)

You might find this tutorial helpful