Fingerprint attendance system using arduino project

Fingerprint attendance system using arduino project

Arduino Projects
Fingerprint attendance system using arduino project
Fingerprint attendance system using arduino, Hardware final image

Fingerprint attendance system using arduino project

In this article we will learn how to make Fingerprint Attendance system using Arduino.

In the last post we will learn how to make Obstacle avoiding robot with L298N using Arduino. You can visit our website,
I hope you appreciate my work, let’s discuss about today’s project.

 

Components:

  1. Arduino Uno
  2. LCD display (16×2)
  3. Breadboard
  4. Finger print sensor (R305)
  5. RTC module
  6. Buzzer
  7. Push buttons
  8. Jumper wires

Construction…

  • Connect pin 7 of Arduino with one side of Led
  • Connect 2nd side of LED with GND
  • Connect pin 5 of Arduino with +ve terminal of Buzzer
  • Connect –ve terminal of Buzzer with GND
  • Connect RX pin of Finger print sensor with pin 3 of Arduino
  • Connect TX pin of Finger print sensor with pin 2 of Arduino
  • Connect GND pin of Arduino with GND
  • Connect 5V pin of Arduino with +ve
  • Connect GND pin of Finger print sensor with GND
  • Connect VCC pin of Finger print sensor with +ve
  • Connect A4 pin of Arduino with SDA pin of RTC module
  • Connect A5 pin of Arduino with SCL pin of RTC module
  • Connect A0 pin of Arduino with one side of 1st push button
  • Connect 2nd side of 1st push button with GND
  • Connect A1 pin of Arduino with one side of 2nd push button
  • Connect 2nd side of 2nd push button with GND
  • Connect A2 pin of Arduino with one side of 3rd push button
  • Connect 2nd side of 3rd push button with GND
  • Connect A3 pin of Arduino with one side of 4th push button
  • Connect 2nd side of 4th push button with GND
Fingerprint attendance system using arduino project
Fingerprint attendance system using arduino, Project hardware

Working…

Using Arduino with a fingerprint attendance system involves integrating a fingerprint sensor with an Arduino board to capture and verify fingerprints for attendance purposes.

Fingerprint attendance system using arduino project
Fingerprint attendance system using arduino, circuit diagram

Applications…

  1. Employee Attendance System
  2. School/College Attendance System
  3. Access Control Systems
  4. Time and Attendance Management
  5. Smart Homes

Advantages…

  1. Accuracy and Security
  2. Ease of Use
  3. Real-time Tracking
  4. Cost-Effectiveness
  5. Customization

Program code…

[dt_code]

#include “Adafruit_Fingerprint.h” //fingerprint library header file

#include<EEPROM.h> //command for storing data

#include<LiquidCrystal.h> //lcd header file

LiquidCrystal lcd(12,11,10,9,8,7);

#include <SoftwareSerial.h>

SoftwareSerial fingerPrint(2, 3); //for tx/rx communication between arduino & r305 fingerprint sensor

 

#include <Wire.h>

#include “RTClib.h” //library file for DS3231 RTC Module

RTC_DS3231 rtc;

 

uint8_t id;

Adafruit_Fingerprint finger = Adafruit_Fingerprint(&fingerPrint);

 

#define register_back 14

#define delete_ok 15

#define forward 16

#define reverse 17

#define match 5

#define indFinger 13

#define buzzer 4

 

#define records 10 // 10 for 10 user

 

int user1,user2,user3,user4,user5,user6,user7,user8,user9,user10;

 

DateTime now;

 

void setup()

{

delay(1000);

lcd.begin(16,2);

Serial.begin(9600);

pinMode(register_back, INPUT_PULLUP);

pinMode(forward, INPUT_PULLUP);

pinMode(reverse, INPUT_PULLUP);

pinMode(delete_ok, INPUT_PULLUP);

pinMode(match, INPUT_PULLUP);

pinMode(buzzer, OUTPUT);

pinMode(indFinger, OUTPUT);

digitalWrite(buzzer, LOW);

if(digitalRead(register_back) == 0)

{

digitalWrite(buzzer, HIGH);

delay(500);

digitalWrite(buzzer, LOW);

lcd.clear();

lcd.print(“Please wait !”);

lcd.setCursor(0,1);

lcd.print(“Downloding Data”);

 

Serial.println(“Please wait”);

Serial.println(“Downloding Data..”);

Serial.println();

 

Serial.print(“S.No. “);

for(int i=0;i<records;i++)

{

digitalWrite(buzzer, HIGH);

delay(500);

digitalWrite(buzzer, LOW);

Serial.print(” User ID”);

Serial.print(i+1);

Serial.print(” “);

}

Serial.println();

int eepIndex=0;

for(int i=0;i<30;i++)

{

if(i+1<10)

Serial.print(‘0’);

Serial.print(i+1);

Serial.print(” “);

eepIndex=(i*7);

download(eepIndex);

eepIndex=(i*7)+210;

download(eepIndex);

eepIndex=(i*7)+420;

download(eepIndex);

eepIndex=(i*7)+630;

download(eepIndex);

eepIndex=(i*7)+840;

download(eepIndex);

eepIndex=(i*7)+1050;

download(eepIndex);

eepIndex=(i*7)+1260;

download(eepIndex);

eepIndex=(i*7)+1470;

download(eepIndex);

eepIndex=(i*7)+1680;

download(eepIndex);

Serial.println();

}

}

if(digitalRead(delete_ok) == 0)

{

lcd.clear();

lcd.print(“Please Wait”);

lcd.setCursor(0,1);

lcd.print(“Reseting…..”);

for(int i=1000;i<1005;i++)

EEPROM.write(i,0);

for(int i=0;i<841;i++)

EEPROM.write(i, 0xff);

lcd.clear();

lcd.print(“System Reset”);

delay(1000);

}

 

lcd.clear();

lcd.print(” Fingerprint “);

lcd.setCursor(0,1);

lcd.print(“Attendance System”);

delay(2000);

lcd.clear();

 

digitalWrite(buzzer, HIGH);

delay(500);

digitalWrite(buzzer, LOW);

for(int i=1000;i<1000+records;i++)

{

if(EEPROM.read(i) == 0xff)

EEPROM.write(i,0);

}

 

finger.begin(57600);

Serial.begin(9600);

lcd.clear();

lcd.print(“Finding Module..”);

lcd.setCursor(0,1);

delay(2000);

if (finger.verifyPassword())

{

Serial.println(“Found fingerprint sensor!”);

lcd.clear();

lcd.print(” Module Found”);

delay(2000);

}

else

{

Serial.println(“Did not find fingerprint sensor :(“);

lcd.clear();

lcd.print(“Module Not Found”);

lcd.setCursor(0,1);

lcd.print(“Check Connections”);

while (1);

}

 

if (! rtc.begin())

Serial.println(“Couldn’t find RTC”);

 

// rtc.adjust(DateTime(F(_DATE), F(__TIME_)));

 

if (rtc.lostPower())

{

Serial.println(“RTC is NOT running!”);

// following line sets the RTC to the date & time this sketch was compiled

rtc.adjust(DateTime(2023, 6, 11, 5, 36, 40));

// This line sets the RTC with an explicit date & time, for example to set

// June 7, 2018 at 11am you would call:

// rtc.adjust(DateTime(2018, 6, 7, 11, 0, 0));

}

lcd.setCursor(0,0);

lcd.print(” Press Match to “);

lcd.setCursor(0,1);

lcd.print(” Start System”);

delay(3000);

 

user1=EEPROM.read(1000);

user2=EEPROM.read(1001);

user3=EEPROM.read(1002);

user4=EEPROM.read(1003);

user5=EEPROM.read(1004);

lcd.clear();

digitalWrite(indFinger, HIGH);

 

}

 

void loop()

{

now = rtc.now();

lcd.setCursor(0,0);

lcd.print(“Time: “);

lcd.print(now.hour(), DEC);

lcd.print(‘:’);

lcd.print(now.minute(), DEC);

lcd.print(‘:’);

lcd.print(now.second(), DEC);

lcd.print(” “);

lcd.setCursor(0,1);

lcd.print(“Date: “);

lcd.print(now.day(), DEC);

lcd.print(‘/’);

lcd.print(now.month(), DEC);

lcd.print(‘/’);

lcd.print(now.year(), DEC);

lcd.print(” “);

delay(500);

int result=getFingerprintIDez();

if(result>0)

{

digitalWrite(indFinger, LOW);

digitalWrite(buzzer, HIGH);

delay(100);

digitalWrite(buzzer, LOW);

lcd.clear();

lcd.print(“ID:”);

lcd.print(result);

lcd.setCursor(0,1);

lcd.print(“Please Wait….”);

delay(1000);

attendance(result);

lcd.clear();

lcd.print(“Attendance “);

lcd.setCursor(0,1);

lcd.print(“Registered”);

delay(1000);

digitalWrite(indFinger, HIGH);

return;

}

checkKeys();

delay(300);

}

 

// dmyyhms – 7 bytes

void attendance(int id)

{

int user=0,eepLoc=0;

if(id == 1)

{

eepLoc=0;

user=user1++;

}

else if(id == 2)

{

eepLoc=210;

user=user2++;

}

else if(id == 3)

{

eepLoc=420;

user=user3++;

}

else if(id == 4)

{

eepLoc=630;

user=user4++;

}

else if(id == 5)

{

eepLoc=0;

user=user5++;

}

else if(id == 6)

{

eepLoc=840;

user=user5++;

}

else if(id == 7)

{

eepLoc=1050;

user=user7++;

}

else if(id == 8)

{

eepLoc=1260;

user=user8++;

}

else if(id == 9)

{

eepLoc=1470;

user=user9++;

}

else if(id == 10)

{

eepLoc=1680;

user=user8++;

}

/*else if(id == 5) // fifth user

{

eepLoc=840;

user=user5++;

}*/

else

return;

 

int eepIndex=(user*7)+eepLoc;

EEPROM.write(eepIndex++, now.hour());

EEPROM.write(eepIndex++, now.minute());

EEPROM.write(eepIndex++, now.second());

EEPROM.write(eepIndex++, now.day());

EEPROM.write(eepIndex++, now.month());

EEPROM.write(eepIndex++, now.year()>>8 );

EEPROM.write(eepIndex++, now.year());

 

EEPROM.write(1000,user1);

EEPROM.write(1001,user2);

EEPROM.write(1002,user3);

EEPROM.write(1003,user4);

// EEPROM.write(4,user5); // figth user

}

 

void checkKeys()

{

if(digitalRead(register_back) == 0)

{

lcd.clear();

lcd.print(“Please Wait”);

delay(1000);

while(digitalRead(register_back) == 0);

Enroll();

}

 

else if(digitalRead(delete_ok) == 0)

{

lcd.clear();

lcd.print(“Please Wait”);

delay(1000);

delet();

}

}

 

void Enroll()

{

int count=1;

lcd.clear();

lcd.print(“Enter Finger ID:”);

 

while(1)

{

lcd.setCursor(0,1);

lcd.print(count);

if(digitalRead(forward) == 0)

{

count++;

if(count>records)

count=1;

delay(500);

}

 

else if(digitalRead(reverse) == 0)

{

count–;

if(count<1)

count=records;

delay(500);

}

else if(digitalRead(delete_ok) == 0)

{

id=count;

getFingerprintEnroll();

for(int i=0;i<records;i++)

{

if(EEPROM.read(i) != 0xff)

{

EEPROM.write(i, id);

break;

}

}

return;

}

 

else if(digitalRead(register_back) == 0)

{

return;

}

}

}

 

void delet()

{

int count=1;

lcd.clear();

lcd.print(“Enter Finger ID”);

 

while(1)

{

lcd.setCursor(0,1);

lcd.print(count);

if(digitalRead(forward) == 0)

{

count++;

if(count>records)

count=1;

delay(500);

}

 

else if(digitalRead(reverse) == 0)

{

count–;

if(count<1)

count=records;

delay(500);

}

else if(digitalRead(delete_ok) == 0)

{

id=count;

deleteFingerprint(id);

for(int i=0;i<records;i++)

{

if(EEPROM.read(i) == id)

{

EEPROM.write(i, 0xff);

break;

}

}

return;

}

 

else if(digitalRead(register_back) == 0)

{

return;

}

}

}

 

uint8_t getFingerprintEnroll()

{

int p = -1;

lcd.clear();

lcd.print(“finger ID:”);

lcd.print(id);

lcd.setCursor(0,1);

lcd.print(“Place Finger”);

delay(2000);

while (p != FINGERPRINT_OK)

{

p = finger.getImage();

switch (p)

{

case FINGERPRINT_OK:

Serial.println(“Image taken”);

lcd.clear();

lcd.print(“Image taken”);

break;

case FINGERPRINT_NOFINGER:

Serial.println(“No Finger”);

lcd.clear();

lcd.print(“No Finger Found”);

break;

case FINGERPRINT_PACKETRECIEVEERR:

Serial.println(“Communication error”);

lcd.clear();

lcd.print(“Comm Error”);

break;

case FINGERPRINT_IMAGEFAIL:

Serial.println(“Imaging error”);

lcd.clear();

lcd.print(“Imaging Error”);

break;

default:

Serial.println(“Unknown error”);

lcd.clear();

lcd.print(“Unknown Error”);

break;

}

}

 

// OK success!

 

p = finger.image2Tz(1);

switch (p) {

case FINGERPRINT_OK:

Serial.println(“Image converted”);

lcd.clear();

lcd.print(“Image converted”);

break;

case FINGERPRINT_IMAGEMESS:

Serial.println(“Image too messy”);

lcd.clear();

lcd.print(“Image too messy”);

return p;

case FINGERPRINT_PACKETRECIEVEERR:

Serial.println(“Communication error”);

lcd.clear();

lcd.print(“Comm Error”);

return p;

case FINGERPRINT_FEATUREFAIL:

Serial.println(“Could not find fingerprint features”);

lcd.clear();

lcd.print(“Feature Not Found”);

return p;

case FINGERPRINT_INVALIDIMAGE:

Serial.println(“Could not find fingerprint features”);

lcd.clear();

lcd.print(“Feature Not Found”);

return p;

default:

Serial.println(“Unknown error”);

lcd.clear();

lcd.print(“Unknown Error”);

return p;

}

 

Serial.println(“Remove finger”);

lcd.clear();

lcd.print(“Remove Finger”);

delay(2000);

p = 0;

while (p != FINGERPRINT_NOFINGER) {

p = finger.getImage();

}

Serial.print(“ID “); Serial.println(id);

p = -1;

Serial.println(“Place same finger again”);

lcd.clear();

lcd.print(“Place Finger”);

lcd.setCursor(0,1);

lcd.print(” Again”);

while (p != FINGERPRINT_OK) {

p = finger.getImage();

switch (p) {

case FINGERPRINT_OK:

Serial.println(“Image taken”);

break;

case FINGERPRINT_NOFINGER:

Serial.print(“.”);

break;

case FINGERPRINT_PACKETRECIEVEERR:

Serial.println(“Communication error”);

break;

case FINGERPRINT_IMAGEFAIL:

Serial.println(“Imaging error”);

break;

default:

Serial.println(“Unknown error”);

return;

}

}

 

// OK success!

 

p = finger.image2Tz(2);

switch (p) {

case FINGERPRINT_OK:

Serial.println(“Image converted”);

break;

case FINGERPRINT_IMAGEMESS:

Serial.println(“Image too messy”);

return p;

case FINGERPRINT_PACKETRECIEVEERR:

Serial.println(“Communication error”);

return p;

case FINGERPRINT_FEATUREFAIL:

Serial.println(“Could not find fingerprint features”);

return p;

case FINGERPRINT_INVALIDIMAGE:

Serial.println(“Could not find fingerprint features”);

return p;

default:

Serial.println(“Unknown error”);

return p;

}

 

// OK converted!

Serial.print(“Creating model for #”); Serial.println(id);

 

p = finger.createModel();

if (p == FINGERPRINT_OK) {

Serial.println(“Prints matched!”);

} else if (p == FINGERPRINT_PACKETRECIEVEERR) {

Serial.println(“Communication error”);

return p;

} else if (p == FINGERPRINT_ENROLLMISMATCH) {

Serial.println(“Fingerprints did not match”);

return p;

} else {

Serial.println(“Unknown error”);

return p;

}

 

Serial.print(“ID “); Serial.println(id);

p = finger.storeModel(id);

if (p == FINGERPRINT_OK) {

Serial.println(“Stored!”);

lcd.clear();

lcd.print(” Finger Stored!”);

delay(2000);

} else if (p == FINGERPRINT_PACKETRECIEVEERR) {

Serial.println(“Communication error”);

return p;

} else if (p == FINGERPRINT_BADLOCATION) {

Serial.println(“Could not store in that location”);

return p;

} else if (p == FINGERPRINT_FLASHERR) {

Serial.println(“Error writing to flash”);

return p;

}

else {

Serial.println(“Unknown error”);

return p;

}

}

 

int getFingerprintIDez()

{

uint8_t p = finger.getImage();

 

if (p != FINGERPRINT_OK)

return -1;

 

p = finger.image2Tz();

if (p != FINGERPRINT_OK)

return -1;

 

p = finger.fingerFastSearch();

if (p != FINGERPRINT_OK)

{

lcd.clear();

lcd.print(“Finger Not Found”);

lcd.setCursor(0,1);

lcd.print(“Try Later”);

delay(2000);

return -1;

}

// found a match!

Serial.print(“Found ID #”);

Serial.print(finger.fingerID);

return finger.fingerID;

}

 

uint8_t deleteFingerprint(uint8_t id)

{

uint8_t p = -1;

lcd.clear();

lcd.print(“Please wait”);

p = finger.deleteModel(id);

if (p == FINGERPRINT_OK)

{

Serial.println(“Deleted!”);

lcd.clear();

lcd.print(“Finger Deleted”);

lcd.setCursor(0,1);

lcd.print(“Successfully”);

delay(1000);

}

 

else

{

Serial.print(“Something Wrong”);

lcd.clear();

lcd.print(“Something Wrong”);

lcd.setCursor(0,1);

lcd.print(“Try Again Later”);

delay(2000);

return p;

}

}

 

void download(int eepIndex)

{

 

if(EEPROM.read(eepIndex) != 0xff)

{

Serial.print(“T->”);

if(EEPROM.read(eepIndex)<10)

Serial.print(‘0’);

Serial.print(EEPROM.read(eepIndex++));

Serial.print(‘:’);

if(EEPROM.read(eepIndex)<10)

Serial.print(‘0’);

Serial.print(EEPROM.read(eepIndex++));

Serial.print(‘:’);

if(EEPROM.read(eepIndex)<10)

Serial.print(‘0’);

Serial.print(EEPROM.read(eepIndex++));

Serial.print(” D->”);

if(EEPROM.read(eepIndex)<10)

Serial.print(‘0’);

Serial.print(EEPROM.read(eepIndex++));

Serial.print(‘/’);

if(EEPROM.read(eepIndex)<10)

Serial.print(‘0’);

Serial.print(EEPROM.read(eepIndex++));

Serial.print(‘/’);

Serial.print(EEPROM.read(eepIndex++)<<8 | EEPROM.read(eepIndex++));

}

else

{

Serial.print(“—————————“);

}

 

Serial.print(” “);

}

[/dt_code]

kashif

I am Kashif Mirza, the founder of ProjectIOT123. I am an Embedded Engineer and working on Embedded Projects since 2003. I have worked on Arduino, Raspberry Pi, PIc Microcontroller, 8051 etc. and have designed both prototypes & industrial projects.