Encrypted RFID Car Immobiliser Kit with Arduino Uno & Relay - AES-Secured Vehicle Starter Lock

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 your car's ignition into a cryptographically guarded system that no cloned card can defeat. This kit walks you through building a functional immobiliser where an MFRC522 reader challenges a MIFARE card with AES authentication. Only if the hashed response matches a stored key does the Arduino trigger the relay, allowing the starter motor to crank. Every connection, from the 12V adapter to the flyback diode, mirrors what a real automotive security module requires.

What You'll Build

You'll solder a complete immobiliser circuit on prototyping boards-integrating the RFID frontend, relay driver with protection diodes, status LEDs, and an audible buzzer for unauthorised access alerts. After programming the Arduino Uno, tap one of the included MIFARE cards. The system performs an AES challenge-response in milliseconds, and the relay clicks only for a valid card. Mounting points and power conditioning are designed so you can eventually hardwire this into a vehicle's starter solenoid loop.

What You'll Learn

• Implement AES-128 challenge-response authentication between an MFRC522 reader and MIFARE Classic cards
• Design a relay driver circuit with 1N4007 flyback diode suppression to safely switch inductive automotive loads
• Write Arduino state-machine logic that manages idle, authentication, and immobiliser-bypass states
• Solder through-hole components onto perfboard and integrate a 12V regulated supply for real-world deployment

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Advanced undergraduates in B.Tech ECE/EEE tackling major project labs or Smart India Hackathon hardware tracks will find every piece of the crypto puzzle pre-assembled here. Final-year students building vehicle anti-theft prototypes, as well as ATL mentors guiding advanced embedded security demos, gain a ready-to-hack platform. If you've soldered before and understand basic Arduino programming, this kit pushes you straight into real-world encryption, relay logic, and automotive interfacing.

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.

Choose your assembly option:

• Soldering Kit - 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo - 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.