Pomoc w połączeniu - Wersja do druku

Kod:
#include <SPI.h>

#include <MFRC522.h>

#include <LiquidCrystal.h>



#define SS_PIN 10

#define RST_PIN 9

LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class



MFRC522::MIFARE_Key key; 



// Init array that will store new NUID 

byte nuidPICC[3];



void setup() { 

  lcd.begin(16, 2);

   lcd.clear();

  lcd.print("Start");

  Serial.begin(9600);

  SPI.begin(); // Init SPI bus

  rfid.PCD_Init(); // Init MFRC522 

 

  for (byte i = 0; i < 6; i++) {

    key.keyByte[i] = 0xFF;

  }



  Serial.println(F("This code scan the MIFARE Classsic NUID."));

  Serial.print(F("Using the following key:"));

  printHex(key.keyByte, MFRC522::MF_KEY_SIZE);

}

 

void loop() {



  // Look for new cards

  if ( ! rfid.PICC_IsNewCardPresent())

    return;



  // Verify if the NUID has been readed

  if ( ! rfid.PICC_ReadCardSerial())

    return;



  Serial.print(F("PICC type: "));

  MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);

  Serial.println(rfid.PICC_GetTypeName(piccType));



  // Check is the PICC of Classic MIFARE type

  if (piccType != MFRC522::PICC_TYPE_MIFARE_MINI &&  

    piccType != MFRC522::PICC_TYPE_MIFARE_1K &&

    piccType != MFRC522::PICC_TYPE_MIFARE_4K) {

    Serial.println(F("Your tag is not of type MIFARE Classic."));

    return;

  }



  if (rfid.uid.uidByte[0] != nuidPICC[0] || 

    rfid.uid.uidByte[1] != nuidPICC[1] || 

    rfid.uid.uidByte[2] != nuidPICC[2] || 

    rfid.uid.uidByte[3] != nuidPICC[3] ) {

    Serial.println(F("A new card has been detected."));



    // Store NUID into nuidPICC array

    for (byte i = 0; i < 4; i++) {

      nuidPICC[i] = rfid.uid.uidByte[i];

    }

   

    Serial.println(F("The NUID tag is:"));

    Serial.print(F("In hex: "));

    printHex(rfid.uid.uidByte, rfid.uid.size);

    Serial.println();

    Serial.print(F("In dec: "));

    printDec(rfid.uid.uidByte, rfid.uid.size);

    Serial.println();

    Serial.end();

    lcd.print("Wczytano");

  }

  else Serial.println(F("Card read previously."));



  // Halt PICC

  rfid.PICC_HaltA();



  // Stop encryption on PCD

  rfid.PCD_StopCrypto1();

}





/**

 * Helper routine to dump a byte array as hex values to Serial. 

 */

void printHex(byte *buffer, byte bufferSize) {

  for (byte i = 0; i < bufferSize; i++) {

    Serial.print(buffer[i] < 0x10 ? " 0" : " ");

    Serial.print(buffer[i], HEX);

  }

}



/**

 * Helper routine to dump a byte array as dec values to Serial.

 */

void printDec(byte *buffer, byte bufferSize) {

  for (byte i = 0; i < bufferSize; i++) {

    Serial.print(buffer[i] < 0x10 ? " 0" : " ");

    Serial.print(buffer[i], DEC);

  }

}