Build a Biometric Safe Door with the Arduino Fingerprint Lock Kit

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

Imagine a small safe or locker that unlocks only when you place your finger on the sensor. This kit turns that idea into a working prototype using the R307 fingerprint module, an Arduino Uno, and a servo motor that swings a latch. You'll store up to three fingerprints directly on the sensor, and the 16x2 LCD shows access status — perfect for a school project, science exhibition, or a hands-on dive into embedded security.

What You'll Build

You wire and code a fingerprint-secured safe door mechanism. The R307 sensor captures and recognises prints, then signals the SG90 servo to unlock. An active buzzer gives feedback, while the LCD prompts for enrollment or displays "Access Granted/Denied." It's a self-contained demo of how modern biometric locks work.

What You'll Learn

• Enrolling and verifying fingerprints with the R307 optical sensor
• Controlling a servo motor for precise lock/unlock movements
• Interfacing a 16x2 LCD via I2C for real-time user prompts
• Integrating sensors, actuators, and displays into a single Arduino sketch

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Students in CBSE Class 11–12 exploring microcontroller-based security projects will find the wiring and code understandable yet challenging. B.Tech ECE/EEE learners can use it for minor projects, while participants in Smart India Hackathon or ATL Tinkering Labs get a ready-made biometric module they can extend. IIT, NIT, VIT, BITS teams working on embedded security prototypes can also jump-start their development.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.