Learn Authentication: Build an RFID Access Control System Kit with Arduino
Learn Authentication: Build an RFID Access Control System Kit with Arduino
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 lab door that opens only for registered ID cards, logs every entry instantly, and flashes red with an audible alert when an unknown tag is scanned — you’ll build exactly that with this kit. Using an RC522 RFID reader and Arduino Uno, you create a complete access control system with servo-driven lock simulation, LCD status screen, and dual‑color LED indicators. It’s the ideal final‑year ECE mini‑project, security hackathon prototype, or CBSE embedded system classroom demo.
What You'll Build
A programmable RFID authentication system that reads card UIDs, matches them against a stored list of authorised identities, and actuates a servo to grant or deny entry. The 16×2 LCD displays messages like “Access Granted” or “Unknown Card”, while green and red LEDs provide instant visual feedback. You’ll also implement a serial‑monitor audit log that timestamps every access attempt, letting you review who entered and when — perfect for a smart attendance tracker.
What You'll Learn
- Interface the RC522 RFID module with Arduino using SPI and the MFRC522 library
- Store and compare card UIDs to build a dynamic access list
- Drive a servo motor to simulate a door lock mechanism
- Create an event log on serial monitor for access auditing and debugging
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| RC522 RFID Module | 1 |
| RFID Cards | 5 |
| RFID Fobs | 3 |
| SG90 Servo | 1 |
| Green LED | 2 |
| Red LED | 2 |
| Piezo Buzzer | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| USB Cable | 1 |
| Male-to-Male Jumper Wires | 20 |
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
Ideal for B.Tech ECE & EEE students tackling embedded lab mini‑projects, CBSE Class 11–12 learners exploring IoT and security concepts, Smart India Hackathon teams prototyping a real‑time access solution, and ATL Tinkering Lab facilitators running RFID workshops. Even IIT, NIT, VIT, and BITS research scholars use this kit to test authentication algorithms quickly.
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?
The AI companion on your phone will walk you through wiring and code step by step; if you still need help, WhatsApp our team directly for a quick live reply.
Can I add more RFID cards later?
Absolutely. The Arduino program you’ll write includes an enrollment mode — just scan a new card and its UID gets stored, no extra hardware needed.
Does this kit include a physical door lock?
The SG90 servo acts as a lock simulator; you can mount it to a cardboard door prop for a realistic demo. The focus is on the electronics and control logic.
How do I view the access audit log?
Open the Arduino IDE serial monitor after uploading the code. It will display a timestamp, card UID, and whether access was granted or denied for every scan.
RC522 RFID reader with Arduino grants access based on registered cards — enrol, delete and audit card access log.
What's in this kit
- Arduino Uno R3
- RC522 RFID Module
- RFID Cards x5
- RFID Fobs x3
- SG90 Servo
- Green LED x2
- Red LED x2
- Piezo Buzzer
- 16x2 LCD
- I2C Backpack
- USB Cable
- M-M Wires x20
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
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