Biometric Home Entry System Kit with ESP32 + LED
ESP32 Biometric Home Entry System Kit – Fingerprint, RFID & PIN Lock with Cloud Logging
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Securing your home, hostel, or lab with a lock that only you can open is now a project you build yourself. This kit guides you through assembling a triple-factor authentication system that responds to your fingerprint, an RFID badge, or a PIN code on a keypad, while logging every access attempt with a timestamp to the cloud over MQTT – all powered by an ESP32.
What You'll Build
A fully functional biometric entry system with a solenoid lock. Once assembled, you can enroll up to 127 fingerprints, multiple RFID tags, and set custom PINs. The DS3231 real-time clock timestamps every unlock (or failed attempt) and stores it on a MicroSD card, while simultaneously publishing to an MQTT broker for remote monitoring.
What You'll Learn
- Integrating R307 fingerprint sensor and MFRC522 RFID reader with ESP32
- Multi-factor authentication logic and access control for real-world doors
- Publishing encrypted access logs to a cloud MQTT broker from a microcontroller
- Power regulation for a 12V solenoid lock using an LM2596 buck converter and flyback diode protection
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| R307 Fingerprint | 1 |
| MFRC522 RFID | 1 |
| 4x4 Keypad | 1 |
| 5V Solenoid Lock | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| LM2596 Buck Converter | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 10 |
| PCB Prototype Board | 3 |
| Enclosure Box | 1 |
| 12V Adapter | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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 built for B.Tech ECE and EEE students tackling final-year security projects, Smart India Hackathon teams prototyping IoT access control, and advanced hobbyists from IIT, NIT, VIT, BITS or ATL Atal Tinkering Labs who want a production-grade authentication system.
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?
Access the AI companion via the QR code included in the box, or message us on WhatsApp for live support from our engineers.
Can I integrate this with an existing door frame?
Yes, the enclosure box and solenoid lock are designed to fit standard Indian wooden and metal doors. Mounting instructions are provided.
Do I need soldering experience?
Basic soldering is required. The kit includes a soldering iron and solder wire, and the AI companion walks you through every joint on the prototype board.
How many fingerprints can be stored?
The R307 fingerprint module stores up to 127 fingerprints directly on the sensor, and you can enroll them through the onboard menu.
Fingerprint and RFID and PIN triple factor authentication. Cloud log via ESP32 MQTT. Solenoid lock.
What's in this kit
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.
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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