Attendance System With Arduino & Rfid Tag

This is a project with MFRC522 RFID Reader and Arduino.

Apr 17, 2022

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rfid attendace system

attendace syatem arduino

rfid projects

arduino rfid projects

Components and supplies

DS3231M - ±5ppm, I2C Real-Time Clock

Arduino UNO

RFID reader (generic)

Buzzer

Flash Memory Card, SD Card

LED (generic)

Apps and platforms

Arduino IDE

Project description

Code

arduino

code

1#include <MFRC522.h> // for the RFID
2#include <SPI.h> // for the RFID   and SD card module
3#include <SD.h> // for the SD card
4#include <RTClib.h>   // for the RTC
5
6// define pins for RFID
7#define CS_RFID 10
8#define RST_RFID   9
9// define select pin for SD card module
10#define CS_SD 4 
11
12// Create   a file to store the data
13File myFile;
14
15// Instance of the class for RFID
16MFRC522   rfid(CS_RFID, RST_RFID); 
17
18// Variable to hold the tag's UID
19String uidString;
20
21//   Instance of the class for RTC
22RTC_DS1307 rtc;
23
24// Define check in time
25const   int checkInHour = 9;
26const int checkInMinute = 5;
27
28//Variable to hold user   check in
29int userCheckInHour;
30int userCheckInMinute;
31
32// Pins for LEDs   and buzzer
33const int redLED = 6;
34const int greenLED = 7;
35const int buzzer   = 5;
36
37void setup() {
38  
39  // Set LEDs and buzzer as outputs
40  pinMode(redLED,   OUTPUT);  
41  pinMode(greenLED, OUTPUT);
42  pinMode(buzzer, OUTPUT);
43  
44   // Init Serial port
45  Serial.begin(9600);
46  while(!Serial); // for Leonardo/Micro/Zero
47   
48  // Init SPI bus
49  SPI.begin(); 
50  // Init MFRC522 
51  rfid.PCD_Init();   
52
53  // Setup for the SD card
54  Serial.print("Initializing SD card...");
55   if(!SD.begin(CS_SD)) {
56    Serial.println("initialization failed!");
57     return;
58  }
59  Serial.println("initialization done.");
60
61  // Setup   for the RTC  
62  if(!rtc.begin()) {
63    Serial.println("Couldn't find RTC");
64     while(1);
65  }
66  else {
67    // following line sets the RTC to the date   & time this sketch was compiled
68    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
69   }
70  if(!rtc.isrunning()) {
71    Serial.println("RTC is NOT running!");
72   }
73}
74
75void loop() {
76  //look for new cards
77  if(rfid.PICC_IsNewCardPresent())   {
78    readRFID();
79    logCard();
80    verifyCheckIn();
81  }
82  delay(10);
83}
84
85void   readRFID() {
86  rfid.PICC_ReadCardSerial();
87  Serial.print("Tag UID: ");
88   uidString = String(rfid.uid.uidByte[0]) + " " + String(rfid.uid.uidByte[1])   + " " + 
89    String(rfid.uid.uidByte[2]) + " " + String(rfid.uid.uidByte[3]);
90   Serial.println(uidString);
91 
92  // Sound the buzzer when a card is read
93   tone(buzzer, 2000); 
94  delay(100);        
95  noTone(buzzer);
96  
97  delay(100);
98}
99
100void   logCard() {
101  // Enables SD card chip select pin
102  digitalWrite(CS_SD,LOW);
103   
104  // Open file
105  myFile=SD.open("DATA.txt", FILE_WRITE);
106
107  //   If the file opened ok, write to it
108  if (myFile) {
109    Serial.println("File   opened ok");
110    myFile.print(uidString);
111    myFile.print(", ");   
112     
113    // Save time on SD card
114    DateTime now = rtc.now();
115    myFile.print(now.year(),   DEC);
116    myFile.print('/');
117    myFile.print(now.month(), DEC);
118    myFile.print('/');
119     myFile.print(now.day(), DEC);
120    myFile.print(',');
121    myFile.print(now.hour(),   DEC);
122    myFile.print(':');
123    myFile.println(now.minute(), DEC);
124    
125     // Print time on Serial monitor
126    Serial.print(now.year(), DEC);
127    Serial.print('/');
128     Serial.print(now.month(), DEC);
129    Serial.print('/');
130    Serial.print(now.day(),   DEC);
131    Serial.print(' ');
132    Serial.print(now.hour(), DEC);
133    Serial.print(':');
134     Serial.println(now.minute(), DEC);
135    Serial.println("sucessfully written   on SD card");
136    myFile.close();
137
138    // Save check in time;
139    userCheckInHour   = now.hour();
140    userCheckInMinute = now.minute();
141  }
142  else {
143    Serial.println("error   opening data.txt");  
144  }
145  // Disables SD card chip select pin  
146  digitalWrite(CS_SD,HIGH);
147}
148
149void   verifyCheckIn(){
150  if((userCheckInHour < checkInHour)||((userCheckInHour==checkInHour)   && (userCheckInMinute <= checkInMinute))){
151    digitalWrite(greenLED, HIGH);
152     delay(2000);
153    digitalWrite(greenLED,LOW);
154    Serial.println("You're   welcome!");
155  }
156  else{
157    digitalWrite(redLED, HIGH);
158    delay(2000);
159     digitalWrite(redLED,LOW);
160    Serial.println("You are late...");
161  }
162}
163

#include <MFRC522.h> // for the RFID
#include <SPI.h> // for the RFID   and SD card module
#include <SD.h> // for the SD card
#include <RTClib.h>   // for the RTC

// define pins for RFID
#define CS_RFID 10
#define RST_RFID   9
// define select pin for SD card module
#define CS_SD 4 

// Create   a file to store the data
File myFile;

// Instance of the class for RFID
MFRC522   rfid(CS_RFID, RST_RFID); 

// Variable to hold the tag's UID
String uidString;

//   Instance of the class for RTC
RTC_DS1307 rtc;

// Define check in time
const   int checkInHour = 9;
const int checkInMinute = 5;

//Variable to hold user   check in
int userCheckInHour;
int userCheckInMinute;

// Pins for LEDs   and buzzer
const int redLED = 6;
const int greenLED = 7;
const int buzzer   = 5;

void setup() {
  
  // Set LEDs and buzzer as outputs
  pinMode(redLED,   OUTPUT);  
  pinMode(greenLED, OUTPUT);
  pinMode(buzzer, OUTPUT);
  
   // Init Serial port
  Serial.begin(9600);
  while(!Serial); // for Leonardo/Micro/Zero
   
  // Init SPI bus
  SPI.begin(); 
  // Init MFRC522 
  rfid.PCD_Init();   

  // Setup for the SD card
  Serial.print("Initializing SD card...");
   if(!SD.begin(CS_SD)) {
    Serial.println("initialization failed!");
     return;
  }
  Serial.println("initialization done.");

  // Setup   for the RTC  
  if(!rtc.begin()) {
    Serial.println("Couldn't find RTC");
     while(1);
  }
  else {
    // following line sets the RTC to the date   & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
   }
  if(!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
   }
}

void loop() {
  //look for new cards
  if(rfid.PICC_IsNewCardPresent())   {
    readRFID();
    logCard();
    verifyCheckIn();
  }
  delay(10);
}

void   readRFID() {
  rfid.PICC_ReadCardSerial();
  Serial.print("Tag UID: ");
   uidString = String(rfid.uid.uidByte[0]) + " " + String(rfid.uid.uidByte[1])   + " " + 
    String(rfid.uid.uidByte[2]) + " " + String(rfid.uid.uidByte[3]);
   Serial.println(uidString);
 
  // Sound the buzzer when a card is read
   tone(buzzer, 2000); 
  delay(100);        
  noTone(buzzer);
  
  delay(100);
}

void   logCard() {
  // Enables SD card chip select pin
  digitalWrite(CS_SD,LOW);
   
  // Open file
  myFile=SD.open("DATA.txt", FILE_WRITE);

  //   If the file opened ok, write to it
  if (myFile) {
    Serial.println("File   opened ok");
    myFile.print(uidString);
    myFile.print(", ");   
     
    // Save time on SD card
    DateTime now = rtc.now();
    myFile.print(now.year(),   DEC);
    myFile.print('/');
    myFile.print(now.month(), DEC);
    myFile.print('/');
     myFile.print(now.day(), DEC);
    myFile.print(',');
    myFile.print(now.hour(),   DEC);
    myFile.print(':');
    myFile.println(now.minute(), DEC);
    
     // Print time on Serial monitor
    Serial.print(now.year(), DEC);
    Serial.print('/');
     Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(),   DEC);
    Serial.print(' ');
    Serial.print(now.hour(), DEC);
    Serial.print(':');
     Serial.println(now.minute(), DEC);
    Serial.println("sucessfully written   on SD card");
    myFile.close();

    // Save check in time;
    userCheckInHour   = now.hour();
    userCheckInMinute = now.minute();
  }
  else {
    Serial.println("error   opening data.txt");  
  }
  // Disables SD card chip select pin  
  digitalWrite(CS_SD,HIGH);
}

void   verifyCheckIn(){
  if((userCheckInHour < checkInHour)||((userCheckInHour==checkInHour)   && (userCheckInMinute <= checkInMinute))){
    digitalWrite(greenLED, HIGH);
     delay(2000);
    digitalWrite(greenLED,LOW);
    Serial.println("You're   welcome!");
  }
  else{
    digitalWrite(redLED, HIGH);
    delay(2000);
     digitalWrite(redLED,LOW);
    Serial.println("You are late...");
  }
}

Code

arduino

code

1#include <MFRC522.h> // for the RFID
2#include <SPI.h> // for the RFID  and SD card module
3#include <SD.h> // for the SD card
4#include <RTClib.h>  // for the RTC
5
6// define pins for RFID
7#define CS_RFID 10
8#define RST_RFID  9
9// define select pin for SD card module
10#define CS_SD 4 
11
12// Create  a file to store the data
13File myFile;
14
15// Instance of the class for RFID
16MFRC522  rfid(CS_RFID, RST_RFID); 
17
18// Variable to hold the tag's UID
19String uidString;
20
21//  Instance of the class for RTC
22RTC_DS1307 rtc;
23
24// Define check in time
25const  int checkInHour = 9;
26const int checkInMinute = 5;
27
28//Variable to hold user  check in
29int userCheckInHour;
30int userCheckInMinute;
31
32// Pins for LEDs  and buzzer
33const int redLED = 6;
34const int greenLED = 7;
35const int buzzer  = 5;
36
37void setup() {
38  
39  // Set LEDs and buzzer as outputs
40  pinMode(redLED,  OUTPUT);  
41  pinMode(greenLED, OUTPUT);
42  pinMode(buzzer, OUTPUT);
43  
44  // Init Serial port
45  Serial.begin(9600);
46  while(!Serial); // for Leonardo/Micro/Zero
47  
48  // Init SPI bus
49  SPI.begin(); 
50  // Init MFRC522 
51  rfid.PCD_Init();  
52
53  // Setup for the SD card
54  Serial.print("Initializing SD card...");
55  if(!SD.begin(CS_SD)) {
56    Serial.println("initialization failed!");
57    return;
58  }
59  Serial.println("initialization done.");
60
61  // Setup  for the RTC  
62  if(!rtc.begin()) {
63    Serial.println("Couldn't find RTC");
64    while(1);
65  }
66  else {
67    // following line sets the RTC to the date  & time this sketch was compiled
68    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
69  }
70  if(!rtc.isrunning()) {
71    Serial.println("RTC is NOT running!");
72  }
73}
74
75void loop() {
76  //look for new cards
77  if(rfid.PICC_IsNewCardPresent())  {
78    readRFID();
79    logCard();
80    verifyCheckIn();
81  }
82  delay(10);
83}
84
85void  readRFID() {
86  rfid.PICC_ReadCardSerial();
87  Serial.print("Tag UID: ");
88  uidString = String(rfid.uid.uidByte[0]) + " " + String(rfid.uid.uidByte[1])  + " " + 
89    String(rfid.uid.uidByte[2]) + " " + String(rfid.uid.uidByte[3]);
90  Serial.println(uidString);
91 
92  // Sound the buzzer when a card is read
93  tone(buzzer, 2000); 
94  delay(100);        
95  noTone(buzzer);
96  
97  delay(100);
98}
99
100void  logCard() {
101  // Enables SD card chip select pin
102  digitalWrite(CS_SD,LOW);
103  
104  // Open file
105  myFile=SD.open("DATA.txt", FILE_WRITE);
106
107  //  If the file opened ok, write to it
108  if (myFile) {
109    Serial.println("File  opened ok");
110    myFile.print(uidString);
111    myFile.print(", ");   
112    
113    // Save time on SD card
114    DateTime now = rtc.now();
115    myFile.print(now.year(),  DEC);
116    myFile.print('/');
117    myFile.print(now.month(), DEC);
118    myFile.print('/');
119    myFile.print(now.day(), DEC);
120    myFile.print(',');
121    myFile.print(now.hour(),  DEC);
122    myFile.print(':');
123    myFile.println(now.minute(), DEC);
124    
125    // Print time on Serial monitor
126    Serial.print(now.year(), DEC);
127    Serial.print('/');
128    Serial.print(now.month(), DEC);
129    Serial.print('/');
130    Serial.print(now.day(),  DEC);
131    Serial.print(' ');
132    Serial.print(now.hour(), DEC);
133    Serial.print(':');
134    Serial.println(now.minute(), DEC);
135    Serial.println("sucessfully written  on SD card");
136    myFile.close();
137
138    // Save check in time;
139    userCheckInHour  = now.hour();
140    userCheckInMinute = now.minute();
141  }
142  else {
143    Serial.println("error  opening data.txt");  
144  }
145  // Disables SD card chip select pin  
146  digitalWrite(CS_SD,HIGH);
147}
148
149void  verifyCheckIn(){
150  if((userCheckInHour < checkInHour)||((userCheckInHour==checkInHour)  && (userCheckInMinute <= checkInMinute))){
151    digitalWrite(greenLED, HIGH);
152    delay(2000);
153    digitalWrite(greenLED,LOW);
154    Serial.println("You're  welcome!");
155  }
156  else{
157    digitalWrite(redLED, HIGH);
158    delay(2000);
159    digitalWrite(redLED,LOW);
160    Serial.println("You are late...");
161  }
162}
163

#include <MFRC522.h> // for the RFID
#include <SPI.h> // for the RFID  and SD card module
#include <SD.h> // for the SD card
#include <RTClib.h>  // for the RTC

// define pins for RFID
#define CS_RFID 10
#define RST_RFID  9
// define select pin for SD card module
#define CS_SD 4 

// Create  a file to store the data
File myFile;

// Instance of the class for RFID
MFRC522  rfid(CS_RFID, RST_RFID); 

// Variable to hold the tag's UID
String uidString;

//  Instance of the class for RTC
RTC_DS1307 rtc;

// Define check in time
const  int checkInHour = 9;
const int checkInMinute = 5;

//Variable to hold user  check in
int userCheckInHour;
int userCheckInMinute;

// Pins for LEDs  and buzzer
const int redLED = 6;
const int greenLED = 7;
const int buzzer  = 5;

void setup() {
  
  // Set LEDs and buzzer as outputs
  pinMode(redLED,  OUTPUT);  
  pinMode(greenLED, OUTPUT);
  pinMode(buzzer, OUTPUT);
  
  // Init Serial port
  Serial.begin(9600);
  while(!Serial); // for Leonardo/Micro/Zero
  
  // Init SPI bus
  SPI.begin(); 
  // Init MFRC522 
  rfid.PCD_Init();  

  // Setup for the SD card
  Serial.print("Initializing SD card...");
  if(!SD.begin(CS_SD)) {
    Serial.println("initialization failed!");
    return;
  }
  Serial.println("initialization done.");

  // Setup  for the RTC  
  if(!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while(1);
  }
  else {
    // following line sets the RTC to the date  & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
  if(!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
  }
}

void loop() {
  //look for new cards
  if(rfid.PICC_IsNewCardPresent())  {
    readRFID();
    logCard();
    verifyCheckIn();
  }
  delay(10);
}

void  readRFID() {
  rfid.PICC_ReadCardSerial();
  Serial.print("Tag UID: ");
  uidString = String(rfid.uid.uidByte[0]) + " " + String(rfid.uid.uidByte[1])  + " " + 
    String(rfid.uid.uidByte[2]) + " " + String(rfid.uid.uidByte[3]);
  Serial.println(uidString);
 
  // Sound the buzzer when a card is read
  tone(buzzer, 2000); 
  delay(100);        
  noTone(buzzer);
  
  delay(100);
}

void  logCard() {
  // Enables SD card chip select pin
  digitalWrite(CS_SD,LOW);
  
  // Open file
  myFile=SD.open("DATA.txt", FILE_WRITE);

  //  If the file opened ok, write to it
  if (myFile) {
    Serial.println("File  opened ok");
    myFile.print(uidString);
    myFile.print(", ");   
    
    // Save time on SD card
    DateTime now = rtc.now();
    myFile.print(now.year(),  DEC);
    myFile.print('/');
    myFile.print(now.month(), DEC);
    myFile.print('/');
    myFile.print(now.day(), DEC);
    myFile.print(',');
    myFile.print(now.hour(),  DEC);
    myFile.print(':');
    myFile.println(now.minute(), DEC);
    
    // Print time on Serial monitor
    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(),  DEC);
    Serial.print(' ');
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.println(now.minute(), DEC);
    Serial.println("sucessfully written  on SD card");
    myFile.close();

    // Save check in time;
    userCheckInHour  = now.hour();
    userCheckInMinute = now.minute();
  }
  else {
    Serial.println("error  opening data.txt");  
  }
  // Disables SD card chip select pin  
  digitalWrite(CS_SD,HIGH);
}

void  verifyCheckIn(){
  if((userCheckInHour < checkInHour)||((userCheckInHour==checkInHour)  && (userCheckInMinute <= checkInMinute))){
    digitalWrite(greenLED, HIGH);
    delay(2000);
    digitalWrite(greenLED,LOW);
    Serial.println("You're  welcome!");
  }
  else{
    digitalWrite(redLED, HIGH);
    delay(2000);
    digitalWrite(redLED,LOW);
    Serial.println("You are late...");
  }
}

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