Arduino Smart Lockbox Kit with PIN History & Timestamped Access Log

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 lockbox that not only secures your belongings but also keeps a record of every access attempt. With this Arduino-based smart lockbox, you'll build a real-world security system that unlocks a servo using a 4x4 keypad, displays status on an LCD, and stores the last 10 PIN entries with timestamps in EEPROM—perfect for monitoring who accessed your safe and when. This project bridges hardware tinkering and practical audit trail design, making it a standout choice for student innovators and security enthusiasts.

What You'll Build

You'll assemble a fully functional lockbox model that responds only to correct PINs, flashes 'Access Granted' on the 16x2 LCD, and emits a confirmation beep. The system automatically logs each entry with date and time from the DS3231 real-time clock chip, letting you review an audit trail of the last 10 access events via the display. The servo-driven latch mechanism provides tangible, physical feedback—turning your desk into a mini security lab.

What You'll Learn

• Interfacing a 4x4 matrix keypad and reading multi-key inputs without ghosting
• Controlling a servo motor precisely to simulate a lock/unlock mechanism
• Using a DS3231 real-time clock to timestamp events and log data into Arduino's EEPROM
• Programming an I2C LCD to display real-time access feedback and audit information

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This intermediate kit is ideal for CBSE Class 11–12 students tackling computer science or physics projects, B.Tech ECE/EEE undergrads prototyping access control systems, and participants in the Smart India Hackathon or ATL Tinkering Labs who need a reliable audit trail. Aspiring security engineers from IITs, NITs, VIT, or BITS Pilani will also find it a hands-on tool to understand embedded logging and real-time feedback.

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.