ABSENSI RFID

 Module/Perangkat yang dibutuhkan:

Arduino Uno

Modul RFID RC522

Kartu RFID

Jumper Male-Female secukupnya

Langkah perakitan

-Hubungkan Arduino UNO dan RFID RC522 dengan kabel Jumper seperti pada gambar di bawah ini:

-Setelah itu buka dan masukkan program berikut ke dalam aplikasi Arduino:

#include <SPI.h>

#include <MFRC522.h>

#define SS_PIN 10 

#define RST_PIN 9

MFRC522 mfrc522(SS_PIN, RST_PIN);

byte card_ID[7]; 

byte Name1[7] = {0x4A, 0x70, 0xE6, 0x0B};

byte Name2[7] = {0x05, 0x88, 0x24, 0x6F, 0xB6, 0x32, 0x00};

int NumbCard[2];

int j = 0;

int statu[2];

int s = 0;

int const RedLed = 6;

int const GreenLed = 5;

int const Buzzer = 8;

String Log;

String Nama;

long Identitas;

int n ;

void setup() {

  Serial.begin(9600);

  SPI.begin();  

  mfrc522.PCD_Init(); 

  Serial.println("CLEARSHEET");               

  Serial.println("LABEL,Date,Nama,Identitas,Waktu Masuk,Waktu Keluar");

  pinMode(RedLed, OUTPUT);

  pinMode(GreenLed, OUTPUT);

  pinMode(Buzzer, OUTPUT);

  delay(200);

}

void loop() {

  //look for new card

  if ( ! mfrc522.PICC_IsNe  wCardPresent()) {

    return;

  }

  // Select one of the cards

  if ( ! mfrc522.PICC_ReadCardSerial()) {

    return;

  }

  for (byte i = 0; i < mfrc522.uid.size; i++) {

    card_ID[i] = mfrc522.uid.uidByte[i];

    if (card_ID[i] == Name1[i]) {

      Nama = "White Card"; 

      Identitas = 123456;

      j = 0;

      s = 0;

    }

    else if (card_ID[i] == Name2[i]) {

      Nama = "KTP"; 

      Identitas = 789101; 

      j = 1;

      s = 1;

    }

    else {

      digitalWrite(GreenLed, LOW);

      digitalWrite(RedLed, HIGH);

      goto cont;

    }

  }

  if (NumbCard[j] == 1 && statu[s] == 0) {

    statu[s] = 1;

    Serial.print("DATA,DATE," + Nama);

    Serial.print(",");

    Serial.print(Identitas); 

    Serial.print(",");

    Serial.print("");

    Serial.print(",");

    Serial.println("TIME");

  }

  else if (NumbCard[j] == 0) {

    NumbCard[j] = 1;

    n++;

    Serial.print("DATA,DATE," + Nama);

    Serial.print(",");

    Serial.print(Identitas);

    Serial.print(",");

    Serial.print("TIME");

    Serial.print(",");

    Serial.println("");

    digitalWrite(GreenLed, HIGH);

    digitalWrite(RedLed, LOW);

    digitalWrite(Buzzer, HIGH);

    delay(30);

    digitalWrite(Buzzer, LOW);

  }

  else if (statu[s] == 1) {

    

    digitalWrite(RedLed, HIGH);

  }

  delay(1000);

cont:

  delay(2000);

  digitalWrite(GreenLed, LOW);

  digitalWrite(RedLed, LOW);

}

-Untuk mengetahui UID dari Kartu RFID, klik File > Examples > MFRC522 > rfid_read_personal_data:

-Kemudian klik Upload

-Buka Serial Monitor