Smart Door Lock Servo Pro Kit with ESP32 + Camera
ESP32 Smart Door Lock Kit: Build a License Plate Recognition Barrier System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform any gate or parking entrance with a security system that reads vehicle license plates automatically. The ESP32-S3 captures an image with the OV2640 camera, segments characters on-device, and runs a compact convolutional neural network to classify the plate number. If the plate matches an authorised list, a high-torque MG996R servo lifts the barrier. No cloud required — all inference happens locally.
What You'll Build
You will assemble and program a fully autonomous access control unit. When a car approaches, the camera triggers plate capture. The on-board CNN compares it against stored license numbers, and on a positive match the servo rotates to open the barrier. The system logs every access attempt with timestamps using the DS3231 RTC and stores images on a microSD card for audit trails.
What You'll Learn
- Training and deploying a lightweight convolutional neural network on an ESP32-S3 microcontroller
- Interfacing the OV2640 camera module and capturing high-resolution plate images
- Character segmentation and on-device digit classification in real time
- Controlling a high-torque MG996R servo based on inference results, including power management with the LM2596 buck converter
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | x1 |
| OV2640 Camera Module | x1 |
| MG996R Servo | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| LM2596 Buck Converter | x1 |
| 4.7kΩ Resistors | x5 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| Enclosure Box | x1 |
| 12V 2A PSU | x1 |
| Soldering Iron | x1 |
| Solder Wire | 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
B.Tech ECE, EEE, and CSE students pursuing final‑year embedded vision or IoT projects will find this kit a complete reference design. It is equally valuable for Smart India Hackathon teams, ATL Tinkering Lab mentors, and researchers prototyping vehicle access systems. IIT, NIT, VIT, and BITS Pilani labs have used similar Compoden kits for capstone demonstrations and competitions.
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 walks you through every connection and code block, and you can send photos via WhatsApp if something doesn’t look right.
Can I train the CNN to recognise custom license plates?
Yes, the companion includes a Python script to retrain the model on your own set of plate images, which you then upload to the ESP32-S3.
Does this kit include a display or only the barrier?
The system operates headless; there is no display. You can add an SSD1306 OLED separately if you want visual status indicators.
Is the soldering iron really necessary?
Yes, you’ll solder the resistors, capacitors, and connectors onto the prototype board. The included soldering iron and wire are enough for the job.
Smart Lock — OV2640 captures car plate. On-device character segmentation + CNN classifies digits. Barrier relay on match.
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.
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