MFRC522_Explore_M3.ino

#include <SPI.h>
#include <MFRC522.h>

#define RST_PIN         5          // Configurable, see typical pin layout above
#define SS_PIN          13         // Configurable, see typical pin layout above

MFRC522 mfrc522(SS_PIN, RST_PIN);  // Create MFRC522 instance

void setup() {
 // delay(5000);
	Serial.begin(9600);		// Initialize serial communications with the PC
	while (!Serial);		// Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
  Serial.println("in setup");
  
	SPI.begin();			// Init SPI bus
  Serial.print("spi intialized");
	mfrc522.PCD_Init();		// Init MFRC522
  Serial.print("card intialized intialized");
  mfrc522.PCD_DumpVersionToSerial();	// Show details of PCD - MFRC522 Card Reader details
	Serial.println(F("Scan PICC to see UID, SAK, type, and data blocks..."));
}

void loop() {
  
  
	// Look for new cards
	if ( ! mfrc522.PICC_IsNewCardPresent()) {
		return;
	}

	// Select one of the cards
	if ( ! mfrc522.PICC_ReadCardSerial()) {
		return;
	}

	// Dump debug info about the card; PICC_HaltA() is automatically called
	mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
}