Build a Biometric Time-Stamped Attendance System with Arduino Uno & R307 Fingerprint Sensor

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Turn an Arduino Uno into a practical biometric time-clock that logs each fingerprint scan with user ID and a precise timestamp. This kit lets you build a standalone attendance device used in security checkpoints or classroom roll calls. The logged data lives on a microSD card, and a companion Python script generates a clean daily attendance report — perfect for schools, hackathons, or prototype security systems.

What You'll Build

A fully functional fingerprint-attendance station. After enrolling a few fingers, each valid scan displays the user ID on the LCD, sounds a confirmation beep, and writes the ID along with date and time to the SD card. At the end of the day, you remove the card, run the Python script on a computer, and get a CSV attendance report listing everyone who checked in.

What You'll Learn

• Enrolling and matching fingerprints with the R307 optical sensor
• Reading real-time clock data (DS3231) to stamp each log accurately
• Writing structured files to a microSD module and retrieving them for processing
• Designing a complete embedded project with LCD feedback, buzzer alerts, and power management

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11–12 students crafting a practical computer science or electronics project, B.Tech ECE/EEE first-years building a mini-project for internal assessment, and Smart India Hackathon teams prototyping a low-cost biometric solution. ATL Tinkering Lab mentors will also find it a ready