RFID Access Control Panel Kit — Build a Smart Entry System with Arduino Uno & Relay

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

In a world where key cards and smartphone access are everyday norms, understanding RFID-based authentication gives you a direct edge in physical security and IoT design. This kit lets you build a working access control panel — the same logic that secures labs, server rooms, and makerspaces — using an Arduino Uno, MFRC522 reader, and relay module. With an LCD that displays granted/denied messages and a buzzer to signal unauthorized attempts, you’ll create a real system that manages a whitelist of card UIDs, logs access visually, and controls a relay that can unlock a door, strike, or magnetic lock.

What You'll Build

You’ll build a self-contained access control station where tapping an authorized RFID card activates a relay (capable of toggling a 5V–12V door strike or magnetic lock), an LCD shows “Access Granted” along with a welcome message, and an unauthorized card triggers a buzzer and “Access Denied” alert. The system stores multiple card UIDs in an allowlist, making it a multi-user security module.

What You'll Learn

• Interface MFRC522 RFID module with Arduino over SPI and read card UIDs
• Implement UID whitelist logic to enable access decisions in firmware
• Drive a 5V relay safely using a 1N4007 protection diode for external load control
• Display real-time status on a 16x2 I2C LCD and provide user feedback via an active buzzer

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 building security system projects for school exhibitions, B.Tech ECE/IoT undergraduates prototyping RFID-relay interfacing for lab work, and Smart India Hackathon teams developing entry automation for smart buildings. It fits ATL Tinkering Lab requirements and impresses at engineering college showcases in IIT, NIT, VIT, or BITS.

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.