Project V - 36. Read Fingerprint Sensor Data with LCD View (Arduino Based)

Read Fingerprint Sensor Data with LCD View

This project will show readings of a person's fingerprint sensor that has been registered and stored with a certain ID number. So when the fingerprint of the person is placed on the fingerprint sensor then the lcd will display the ID number that has been stored.

Hardware Requirement

Arduino Uno Board
Fingerprint Sensor (Unknown Type)
LCD 16*2
Power supply +5 Volt
Jumper

Fingerprint Sensor| Source

Schematic

Arduino - Fingerprint Sensor Wiring

Arduino - LCD Wiring

Source Code/Sketch

#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 10, 11, 12, 13);
int getFingerprintIDez();
// 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()
{
lcd.begin(16, 2);
lcd.clear();
lcd.print("Baca ID");
lcd.setCursor(0,1);
lcd.print("Sidik Jari");
delay(2000);
finger.begin(57600);
lcd.clear();
lcd.print("Test Koneksi");
lcd.setCursor(0, 1);
if (finger.verifyPassword()) {
lcd.print("OK !");
} else {
lcd.print("ERROR !");
while (1);
}
delay(2000);
}
void loop() // run over and over again
{
lcd.setCursor(0,0);
lcd.print(" Letakkan Jari ");
lcd.setCursor(0,1);
lcd.print(" Anda! ");
getFingerprintID();
delay(50); //don't ned to run this at full speed.
}
uint8_t getFingerprintID() {
uint8_t p = finger.getImage();
if (p != FINGERPRINT_OK)return p;
lcd.clear();
lcd.print("Lepaskan Jari ");
delay(1000);
//==============convert image
p = finger.image2Tz();
//------------ OK converted!
p = finger.fingerFastSearch();
if (p == FINGERPRINT_NOTFOUND) {
lcd.setCursor(0, 1);
lcd.print("Jari tdk Cocok!");
delay(2000);
return p;
}
// found a match!
lcd.setCursor(0, 1);
lcd.print("No ID:"); lcd.print(finger.fingerID);
lcd.print(" Cocok! ");
delay(2000);
}

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 use this, you must register some fingerprints on fingerprint sensor using enroll program
(Previous Project)
5. First initial LCD display