Arduino RFID Door Lock Kit with Arduino Uno + Servo
Arduino RFID Door Lock Kit: Build a Secure Access System with Uno, Servo & Intruder Alarm
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 unlocking a door with a simple card tap, while the system actively defends against intruders. This kit lets you build a fully functional RFID-controlled lock that grants access only to authorized cards and instantly triggers a loud alarm after three wrong attempts—just like a real access control panel used in offices and labs.
What You'll Build
You'll assemble a working RFID door lock that uses a servo motor to physically move a lock bolt. The MFRC522 reader scans any nearby RFID card; when it matches one of the stored IDs, the servo opens. After three consecutive mismatches, the active buzzer screams and the system locks out further attempts until reset—a true anti‑tamper security feature.
What You'll Learn
- Interface the MFRC522 RFID module with Arduino Uno and read unique card UIDs
- Control a 180° SG90 servo to act as a precise locking bolt
- Program multi‑attempt conditional logic for failed tries and alarm activation
- Wire and debug an interactive breadboard circuit with LEDs, buzzer, and sensor
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| MFRC522 RFID | x1 |
| RFID Cards | x3 |
| SG90 Servo | x1 |
| Active Buzzer | x1 |
| 5mm LED | x3 |
| 10kΩ Resistors | x5 |
| 100nF Caps | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x25 |
| 9V Battery Snap | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is perfect for CBSE Class 11‑12 students building school science or computer science exhibitions, B.Tech ECE/EEE first‑year students tackling embedded systems assignments, and participants in Smart India Hackathon or ATL Tinkering Lab challenges who need a ready‑to‑assemble access control prototype. It’s also a great weekend build for hobbyists exploring RFID security.
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.
What if I get stuck during the build?
Our AI companion, accessible via QR code, walks you through every step — from identifying resistors to debugging the servo response. You can also reach us on WhatsApp for human help.
Can I add more authorized cards later?
Yes, the code stores card UIDs in an array. You’ll receive instructions to add or remove cards by simply updating the sketch—no extra hardware needed.
What happens if the servo jams while locking?
The AI companion includes troubleshooting for servo binding. Usually, adjusting the open/close angle limits in the code prevents over‑rotation and ensures smooth movement.
Is this suitable for a school science exhibition?
Absolutely. The lockout alarm after three wrong attempts makes it a compelling demo of real‑world security. CBSE Class 12 students often use it for computer science or physics projects.
MFRC522 reads card UID and controls servo lock. Three wrong tries trigger lockout alarm.
What's in this kit
- Arduino Uno R3
- MFRC522 RFID
- RFID Cards x3
- SG90 Servo
- Active Buzzer
- 5mm LED x3
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x25
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items