•

camdelk

•

lucas76

Created January 24, 2019

Dream Team

This fingerprint scanner system is used to record attendance.

IntermediateWork in progress62

Things used in this project

Hardware components

Arduino UNO

DFRobot Fingerprint Sensor

Tactile Switch, SPST-NO

LED (generic)

Resistor 1k ohm

Resistor 2.21k ohm

We used a 2k ohm resistor

Jumper wires (generic)

Buzzer

Adafruit Standard LCD - 16x2 White on Blue

Breadboard (generic)

Real Time Clock (RTC)

Story

The object of the fingerprint scanner was to create a bio- metric attendance system that would be able to process and automatically match one or many unknown fingerprints against a database of known and unknown prints. The process of the enrollment was to capture the the fingerprints by putting your finger on the scanner multiple times for the scanner to have multiple angles of your finger. Then the scanner was to process the different angles and different fingerprints and store them. Next the verification process begins by placing your finger on the scanner for the scanner to capture the fingerprints, and then the scanner will process the fingerprint and compare it to the fingerprints that the scanner stored from the enrollment process, and either give you a match or not.

There were multiple problem throughout our entire process of building the fingerprint scanner. First off we were having a few wiring problems due to human error. We also had wiring error due to the some of the equipment not having the necessary inputs that were on the given diagrams. We also had problems with the code. There were a few minor problems with the code, but for the most part they were simple fixes. We were unable to get the fingerprint scanner to function, and after multiple rebuilds and changes done to the project, we have determine that the problem was we had a bad fingerprint scanner. All of the other equipment was getting power but for the fingerprint scanner we were unable to get power to it, and therefore we were unable to get the project functional.

Code

Code

#include<EEPROM.h>
#include<LiquidCrystal.h>
LiquidCrystal lcd(13,12,11,10,9,8);
#include <SoftwareSerial.h>
SoftwareSerial fingerPrint(2, 3);

#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 rtc;

#include "Adafruit_Fingerprint.h"
uint8_t id;
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&fingerPrint);

#define enroll 14
#define del 15
#define up 16
#define down 17
#define match 5
#define indFinger 7
#define buzzer 5

#define records 4  // 5 for 5 user

int user1,user2,user3,user4,user5;

DateTime now;

void setup()
{
    delay(1000);
    lcd.begin(16,2);
    Serial.begin(9600);
    pinMode(enroll, INPUT_PULLUP);
    pinMode(up, INPUT_PULLUP);
    pinMode(down, INPUT_PULLUP);
    pinMode(del, INPUT_PULLUP);
    pinMode(match, INPUT_PULLUP);
    pinMode(buzzer, OUTPUT);
    pinMode(indFinger, OUTPUT);
    digitalWrite(buzzer, LOW);
    if(digitalRead(enroll) == 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;   // 5th user
      //  download(eepIndex);
        Serial.println();
      }
    }
    if(digitalRead(del) == 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("   Attendance   ");
    lcd.setCursor(0,1);
    lcd.print("     System     ");
    delay(2000);
    lcd.clear();
    lcd.print("Circuit Digest");
    lcd.setCursor(0,1);
    lcd.print("Saddam Khan");
    delay(2000);
          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(1000);
    if (finger.verifyPassword())
    {
      Serial.println("Found fingerprint sensor!");
      lcd.clear();
      lcd.print("Found Module ");
      delay(1000);
    }
    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.isrunning())
    {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
       rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
    }
lcd.setCursor(0,0);
 lcd.print("Press Match to ");
 lcd.setCursor(0,1);
 lcd.print("Start System");
 delay(2000);

 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("Registed");
              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)   // 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(enroll) == 0)
   {
    lcd.clear();
    lcd.print("Please Wait");
    delay(1000);
    while(digitalRead(enroll) == 0);
    Enroll();
   }

   else if(digitalRead(del) == 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(up) == 0)
     {
       count++;
       if(count>records)
       count=1;
       delay(500);
     }

     else if(digitalRead(down) == 0)
     {
       count--;
       if(count<1)
       count=records;
       delay(500);
     }
     else if(digitalRead(del) == 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(enroll) == 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(up) == 0)
     {
       count++;
       if(count>records)
       count=1;
       delay(500);
     }

     else if(digitalRead(down) == 0)
     {
       count--;
       if(count<1)
       count=records;
       delay(500);
     }
     else if(digitalRead(del) == 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(enroll) == 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");
      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("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("Figer 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("         ");
}

Credits

Comments

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Dream Team

Things used in this project

Hardware components

Story

Schematics

Circuit Diagram

Code

Code

Credits

mckean0

camdelk

lucas76

Comments

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Dream Team

Dream Team

Things used in this project

Hardware components

Story

Schematics

Circuit Diagram

Code

Code

Credits

mckean0

camdelk

lucas76

Comments