Fingerprint-Based Attendance System uses biometric fingerprint scanning to accurately record and verify the presence of individuals. It ensures secure, tamper-proof attendance tracking by eliminating proxy or manual entry errors.
Price : 6000
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The Fingerprint-Based Attendance System is a biometric authentication project that automates and secures attendance tracking using a fingerprint sensor and microcontroller. This system eliminates the need for manual or card-based attendance, reducing the chances of proxy marking and ensuring reliable identification. Each user’s fingerprint is registered and matched during attendance logging. The real-time clock (RTC) module timestamps each record, and an LCD display provides feedback to the user. It is ideal for schools, colleges, offices, and secure facilities, where accurate and tamper-proof attendance is critical.
The Arduino UNO acts as the central microcontroller. It handles all operations — such as fingerprint matching, data processing, communication with peripherals (LCD, fingerprint sensor, RTC), and controlling output components like the buzzer and LEDs. It runs the program logic written in Arduino C/C++.
This is the core biometric device used to capture, process, and store fingerprints. When a user places their finger on the sensor:
It scans the fingerprint,
Matches it with stored templates (if any),
Sends success or failure feedback to the Arduino.
It supports two operations:
Enrollment – Stores a new fingerprint template.
Matching – Compares scanned fingerprint with saved templates.
The RTC module is used to track the exact date and time when attendance is recorded. Even if the Arduino is turned off, the RTC keeps time using a coin-cell battery. This ensures timestamped attendance logs, which are essential for tracking punctuality and creating reports.
This alphanumeric display is used to provide real-time feedback to the user. It displays:
System status (e.g., "Place Finger", "Access Granted", "Try Again"),
Attendance confirmation with timestamp,
Menu options for enrolling or deleting fingerprints.
Used to navigate between system functions such as:
Enroll new fingerprint
Delete fingerprint
View system status
Reset system
Each button can trigger a specific mode, making the system interactive and flexible.
Provides audio feedback. A short beep indicates successful scanning, while a long or multiple beeps may indicate errors or failure. This enhances user experience by giving immediate feedback.
Used as a visual status indicator:
Green LED = Success
Red LED = Failure
Blinking LED = System Ready
This improves accessibility and gives quick insight into system activity.
Used to create a temporary prototype circuit for testing and development. All connections between Arduino and components are made via jumper wires on a breadboard.
