basic arduino tutorial: Project V - 34. Attendance List using Fingerprint Sensor (Arduino Based)

Attendance List using Fingerprint Sensor

The data from the fingerprint is stored on Arduino internal EEPROM, in this project only 10 employee data is used, but if you want to add more it is very possible. Furthermore RTC is used to know when an employee performs absenteeism. To view the attendance list of the ten employees can use the serial monitor (the default Sketch Arduino software).

Hardware Requirement

Arduino Uno Board
RTC DS1307 Module
Fingerprint Sensor (Unknown Type)
LCD 16*2
A Buzzer
Power supply +5 Volt
Jumper

Fingerprint Sensor | Source

RTC DS1307 Module | Source Buzzer | Source

Schematic

Arduino - Fingerprint Sensor Wiring

Arduino - LCD Wiring

Arduino - RTC Wiring

Arduino - Buzzer Wiring

Source Code/Sketch

#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal.h>
#include <EEPROM.h>
#include <Wire.h>
#define DS1307_ADDRESS 0x68
byte zero = 0x00;
LiquidCrystal lcd(8, 9, 10, 11, 12, 13);
byte second ,minute,hour, weekDay;
byte monthDay,month,year;
uint8_t id;
uint8_t getFingerprintEnroll();
// pin #2 is IN from sensor (GREEN wire)
// pin #3 is OUT from arduino (WHITE wire)
SoftwareSerial mySerial(2, 3);
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);
void setup(){
pinMode(7, OUTPUT);
digitalWrite(7, LOW);
delay(500);
Wire.begin();
/*
// Seting RTC
second=0;
minute=50;
hour=12;
monthDay=15;
month=10;
year=16;
setingRTC();
delay(100);
*/
Serial.begin(9600);
lcd.begin(16, 2);
lcd.clear();
lcd.print("Absensi karyawan");
lcd.setCursor(0,1);
lcd.print(" dg sidik jari");
delay(2000);
lcd.clear();
lcd.print("Test Koneksi");
// set the data rate for the sensor serial port
finger.begin(57600);
if (finger.verifyPassword()) {
lcd.setCursor(0,1);
lcd.print("OK !");
} else {
lcd.setCursor(0,1);
lcd.print("ERROR !");
while (1);
}
delay(2000);
}
//===================program utama
void loop(){
// bacaRTC();
lcd.setCursor(0, 0);
lcd.print("Absensi Karyawan");
lcd.setCursor(0, 1);
lcd.print(" Letakkan Jari ");
getFingerprintIDez();
kirimSerial();
delay(50);
}
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_NOTFOUND){
lcd.clear();
lcd.print(" Akses");
lcd.setCursor(0,1);
lcd.print(" Tidak Diterima");
digitalWrite(7, HIGH);
delay(3000);
digitalWrite(7, LOW);
delay(100);
return p;
}
if (p != FINGERPRINT_OK) return -1;
// found a match!
digitalWrite(7, HIGH);
delay(500);
digitalWrite(7, LOW);
delay(50);
bacaRTC();
lcd.clear();
lcd.print("Karyawan ");
lcd.print(finger.fingerID);
lcd.setCursor(0,1);
lcd.print(hour);
lcd.print(":");
lcd.print(minute);
lcd.print(":");
lcd.print(second);
lcd.print(" ");
lcd.print(monthDay);
lcd.print("/");
lcd.print(month);
lcd.print(" ");
//-------------------simpan data
id=finger.fingerID;
byte addr = (monthDay*10)+id;
EEPROM.write(addr, 0);
delay(4000);
lcd.clear();
return finger.fingerID;
}
/****************************************
* peta penyimpanan di EEPROM
* tanggal disimpan pada alamt 0
* ----------------------------------------------------------
* tgl | Alamat EEPROM karyawan
* | 1 2 3 4 5 6 7 8 9 10
* -----------------------------------------------------------
* 1 | 11 12 13 14 15 16 17 18 19 20
* 2 | 21 22 23 24 25 26 27 28 29 30
* 3 | 31 32 33 34 35 36 37 38 39 40
*
* 30 | 311 312 313 314 315 316 317 318 319 320
* ---------------------------------------------
* Rumus Penyimpanan EEPROM=
* alamatSimpan = (tgl * 10)+id
*
* kode absensi:
* * 0 = Hadir
* * 255 = Alpha
*/
//---------------------------RTC Area
byte decToBcd(byte val){
return ( (val/10*16) + (val%10) );
}
byte bcdToDec(byte val) {
return ( (val/16*10) + (val%16) );
}
void bacaRTC(){
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(zero);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 7);
second = bcdToDec(Wire.read());
minute = bcdToDec(Wire.read());
hour = bcdToDec(Wire.read() & 0b111111);
weekDay = bcdToDec(Wire.read());
monthDay = bcdToDec(Wire.read());
month = bcdToDec(Wire.read());
year = bcdToDec(Wire.read());
}
void setingRTC(){
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(zero); //stop RTC
Wire.write(decToBcd(second));
Wire.write(decToBcd(minute));
Wire.write(decToBcd(hour));
Wire.write(decToBcd(weekDay));
Wire.write(decToBcd(monthDay));
Wire.write(decToBcd(month));
Wire.write(decToBcd(year));
Wire.write(zero); //start
Wire.endTransmission();
}
void kirimSerial(){
if(Serial.available()){
char str;
str=Serial.read();
if (str=='R'){
/*
* ---------------------------------------------
* tgl | Absensi karyawan
* | 1 2 3 4 5 6 7 8 9 10
* ----------------------------------------------
* 1 | H H - - H H H H H H
* 2 | H H H H - H H H H H
* 3 |
*
* 30 |
* ---------------------------------------------
* H = HADIR
* - = ALPHA
*/
for(byte i=0; i<60;i++){
Serial.print('-');
}
Serial.println('-');
Serial.println(" tgl | Absensi Karyawan");
Serial.print (" | ");
for(byte i=1; i<11;i++){
Serial.print(i);
Serial.print(" ");
}
Serial.println(" ");
for(byte i=0; i<60;i++){
Serial.print('-');
}
Serial.println('-');
byte value;
byte address;
byte j=0;
String absensi="";
for(byte tgl=1; tgl<31; tgl++){
Serial.print(tgl);
Serial.print(" |");
j=tgl*10;
for(byte i=1; i<11; i++){
address=i+j;
value = EEPROM.read(address);
if (value==0) absensi="H";
else absensi="-";
Serial.print(" "+absensi+" ");
}
Serial.println(" ");
}
str=' ';
}
else if(str=='D'){
Serial.println("Hapus Data");
for(word i=0; i<310; i++){
EEPROM.write(i, 255);
Serial.println(".");
delay(5);
}
Serial.println("Hapus Data Sukses!");
}
}
}

How it Works

1. Connect the Arduino with Peripherals needed
2. Plug in the Power Source on the device
3. Compile and upload the script program above to your arduino

4. Before you use, firstly register 10 fingerprints on the fingerprint sensor using enroll program

(Project V -33)

5. First initial LCD display