Notes

#include <SPI.h>
#include <MFRC522.h>
#include <EEPROM.h>
#define RST_PIN 9
#define SS_PIN 10byte readCard[4];
int successRead;MFRC522 mfrc522(SS_PIN, RST_PIN);
MFRC522::MIFARE_Key key;
void setup()
{ Serial.begin(9600);
SPI.begin(); mfrc522.PCD_Init();
Serial.println(“RFID KART KAYIT UYGULAMASI”);
Serial.println(“————————–“);
Serial.println(“Lutfen 1 numarali karti okutun”);
Serial.println();
do
{ successRead = getID(); }
while (!successRead);
for ( int i = 0; i < mfrc522.uid.size; i++ ) {
EEPROM.write(i, readCard[i] ); }
Serial.println(“Kart EEPROM’a kaydedildi.”); Serial.println(); Serial.println(“Lutfen 2 numarali karti okutun.”);
Serial.println();
do { successRead = getID(); }
while (!successRead);
for ( int i = 0; i < mfrc522.uid.size; i++ )
{ EEPROM.write(i + 4, readCard[i] ); }
Serial.println(“Kart EEPROM’a kaydedildi.”);
Serial.println();
Serial.println(“Kart kayit islemi basarili!”);}
void loop(){}
int getID() {
if ( ! mfrc522.PICC_IsNewCardPresent()) { return 0; }
if ( ! mfrc522.PICC_ReadCardSerial()) { return 0; }
Serial.print(“Kart UID’si: “);
for (int i = 0; i < mfrc522.uid.size; i++) { //
readCard[i] = mfrc522.uid.uidByte[i];
Serial.print(readCard[i], HEX); }
Serial.println(“”); (okuma başarılı)
mfrc522.PICC_HaltA(); return 1;}
}
}
}
#include <SPI.h>
#include <MFRC522.h>
#include <EEPROM.h>
#define RST_PIN 9
#define SS_PIN 10
#define ledPin 7MFRC522 mfrc522(SS_PIN, RST_PIN);
String lastRfid = “”;String kart1 = “”;
String kart2 = “”;MFRC522::MIFARE_Key key;
void setup()
{ Serial.begin(9600);
SPI.begin(); mfrc522.PCD_Init();
pinMode(ledPin, OUTPUT);
Serial.println(“RFID KART OKUMA UYGULAMASI”);
Serial.println(“————————–“);
Serial.println();
readEEPROM();}
void loop(){
if ( ! mfrc522.PICC_IsNewCardPresent()) { return; }
if ( ! mfrc522.PICC_ReadCardSerial()) { return; }
String rfid = “”;
for (byte i = 0; i < mfrc522.uid.size; i++)
{ rfid += mfrc522.uid.uidByte[i] < 0x10 ? ” 0″ : ” “;
rfid += String(mfrc522.uid.uidByte[i], HEX);
}
rfid.trim();
rfid.toUpperCase();
if (rfid == lastRfid)
return;
lastRfid = rfid;
Serial.print(“Kart 1: “);
Serial.println(kart1);
Serial.print(“Kart 2: “);
Serial.println(kart2);
Serial.print(“Okunan: “);
Serial.println(rfid);
Serial.println();
if (rfid == kart1) { digitalWrite(ledPin, HIGH);
Serial.println(“LED yandi.”); }
if (rfid == kart2)
{ digitalWrite(ledPin, LOW);
Serial.println(“LED sondu.”);
}
Serial.println();
delay(200);}
void readEEPROM(){
for (int i = 0 ; i < 4 ; i++)
{ kart1 += EEPROM.read(i) < 0x10 ? ” 0″ : ” “;
kart1 += String(EEPROM.read(i), HEX);
}
for (int i = 4 ; i < 8 ; i++)
{ kart2 += EEPROM.read(i) < 0x10 ? ” 0″ : ” “;
kart2 += String(EEPROM.read(i), HEX);
}
kart1.trim();
kart1.toUpperCase();
kart2.trim();
kart2.toUpperCase();
}
}