RFID & GSM Based Students Attendance System With SMS Alert

Interfacing Rc522 Rfid With Arduino Uno :-

Interfacing Rc522 Rfid With Arduino Nano :-

Find Rc522 Rfid Card Number (Code) :-

  //Prateek
  //www.prateeks,in
  
#include <SPI.h>
#include <MFRC522.h>

constexpr uint8_t RST_PIN = 9;     // Configurable, see typical pin layout above
constexpr uint8_t SS_PIN = 10;     // Configurable, see typical pin layout above
 
MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class

MFRC522::MIFARE_Key key; 

// Init array that will store new NUID 
byte nuidPICC[4];

void setup() { 
  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();
  }
  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);
  }
}

Circuit Diagram :-

Code :-

 

//Prateek
//www.prateeks.in

#include <SPI.h>
#include <MFRC522.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
SoftwareSerial SIM900(2, 3);
String textForSMS;

#define SS_PIN 4
#define RST_PIN 10
MFRC522 mfrc522(SS_PIN, RST_PIN);

String f1001 = "+918830584864";
String f1002 = "+918999566355";


void setup() {
  Serial.begin(9600);
  randomSeed(analogRead(0));
  SIM900.begin(9600);
  SPI.begin();
  mfrc522.PCD_Init();
  lcd.init();
  lcd.backlight();
  lcd.print("www.prateeks.in");
  delay(3000);
  lcd.clear();
  lcd.print("Swip Your Card");
  delay(1000);

}

void loop() {

  MFRC522::MIFARE_Key key;
  for (byte i = 0; i < 6; i++) {
    key.keyByte[i] = 0xFF;
  }
  if ( ! mfrc522.PICC_IsNewCardPresent()) {
    return;
  }
  if ( ! mfrc522.PICC_ReadCardSerial()) {
    return;
  }

  Serial.print("Card UID:");
  for (byte i = 0; i < mfrc522.uid.size; i++) {

  }
  Serial.println();
  byte piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);
  if (        piccType != MFRC522::PICC_TYPE_MIFARE_MINI
              &&        piccType != MFRC522::PICC_TYPE_MIFARE_1K
              &&        piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
    //Serial.println("This sample only works with MIFARE Classic cards.");
    return;
  }

  if ( (mfrc522.uid.uidByte[0] == 108) && (mfrc522.uid.uidByte[1] == 159) && (mfrc522.uid.uidByte[2] == 37) && (mfrc522.uid.uidByte[3] == 217) )
  {
    lcd.clear();
    lcd.print("AttendanceMarked");
    delay(500);
    Serial.println("student 1");

    // for gsm
    sendsms(" Prateek is Safely Present", f1001);
    delay(1000);

    lcd.setCursor(0, 1);
    lcd.print("message sent");
    delay(2000);

    lcd.clear();
    lcd.print("Swip Your Card");
    delay(1000);
  }

  // student2
  if ( (mfrc522.uid.uidByte[0] == 9) && (mfrc522.uid.uidByte[1] == 191) && (mfrc522.uid.uidByte[2] == 233) && (mfrc522.uid.uidByte[3] == 212) )

  {
    lcd.clear();
    lcd.print("AttendanceMarked");
    delay(500);
    Serial.println("student 2");

    // for gsm
    sendsms("Sonu is Safely Present", f1002);
    delay(1000);

    lcd.setCursor(0, 1);
    lcd.print("message sent");
    delay(2000);

    lcd.clear();
    lcd.print("Swip Your Card");
    delay(1000);
  }

  else
    Serial.println("unregistered user");
}

void sendsms(String message, String number)
{
  delay(1000);
  SIM900.println(message);
  delay(1000);
  SIM900.println((char)26);
  delay(1000);
  SIM900.println();
  delay(100);

}

PHOTOS