INTRODUCTION :
Security and protection systems are designed to protect and guard assets. This system can be used in a variety of settings, including homes, offices, colleges, and industries, to allow a person into a room fingerprint sensor using fingerprints as biometric authentication. In this modern era, fingerprint authentication has become common as there are many applications such as: in mobile phones (for security purposes), in colleges(for biometric attendance), in offices(to track employees’ login and logout timings), in lockers(to safeguard important files, jewellery etc). Compared to patterns and passwords, which can be cracked with little effort, fingerprint-based locks are tough to crack as everyone has a unique fingerprint. Even so, one cannot match his/her finger’s fingerprint with another finger.
COMPONENTS NEEDED :
● Arduino uno
● Relay
● Solenoid lock
● Buzzer
● LCD
● Fingerprint sensor
● LED
● GSM module
FLOW CHART :
BLOCK DIAGRAM : In the following block diagram fingerprint sensor and LED are the input devices. Relay, solenoid lock, GSM module, LCD and buzzer are the output devices. Arduino uno is the microcontroller.
PIN CONNECTION :
LCD display has 16 pins
LCD display | Arduino UNO |
LCD VSS | GND |
LCD VCC | VIN |
LCD VEE | Connect to potentiometer |
LCD RS | A0 |
LCD R/W | GND |
LCD E | A1 |
DB0:H/L Data busline (7) LCD Screen | — |
DB1:H/L Data busline (8) LCD Screen | — |
DB2:H/L Data busline (9) LCD Screen | — |
DB3:H/L Data busline (10) LCD Screen | — |
LCD DB4 | A2 |
LCD DB5 | A3 |
LCD DB6 | A4 |
LCD DB7 | A5 |
LCD LED+ | VIN |
LCD LED- | GND |
Potentiometer has 3pins
potentiometer | Arduino uno |
Pin1 | 5V |
Pin2 | Connected to LCD VEE |
Pin3 | GND |
GSM has 4 pins
GSM Pin | Arduino UNO |
VCC | 13 |
TX | RX |
RX | TX |
GND | GND |
Fingerprint Sensor has 4 pins
Fingerprint Sensor Pin | Arduino UNO |
VCC | VIN |
TX | 2 |
RX | 3 |
GND | GND |
RELAY has 3 pins
PIR Pins | Arduino UNO |
VCC | 5 |
IN | 6 |
GND | 4 |
CIRCUIT DIAGRAM :
Note:
All the required data has been provided over here. Please feel free to contact me for model weights and if you face any issues.
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