ESP32-S3 License Plate Reader Kit with ESP32 + Camera
ESP32-S3 License Plate Reader Kit – Automate Gated Entry with On-Device License Plate Recognition
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
In this project, you’ll train an ESP32-S3 to read Indian license plates using a camera, segment characters with OpenCV, and classify them with a lightweight CNN — all on-device, without a cloud connection. When an authorized plate is recognized, the MG996R servo acts as a barrier relay to grant access. This kit mimics real-world ALPR systems used at offices, apartments, and toll plazas.
What You'll Build
A self-contained automatic number plate recognition system that captures vehicle plates via OV2640, processes images on the ESP32-S3, logs entry timestamps to an SD card with RTC precision, and triggers a servo-based barrier mechanism. You’ll have a functional demo unit housed in a provided enclosure, ready for integration into a smart parking prototype or campus security project.
What You'll Learn
- On-device CNN inference for character classification using TensorFlow Lite Micro
- Image pre-processing pipeline: segmentation, binarization, and contour extraction
- Real-time clock synchronization and data logging to MicroSD
- Servo motor control for physical actuation based on recognition results
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
Engineering students (B.Tech ECE/EEE) building final-year projects or participating in Smart India Hackathon, makers at IIT/NIT/VIT developing smart parking solutions, and electronics enthusiasts exploring edge AI and computer vision. This advanced kit assumes you have prior experience with Arduino IDE or PlatformIO and basic soldering skills.
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?
Scan the QR code to chat with the AI companion trained on this exact project; it walks you through code setup, wiring, and troubleshooting. You can also reach us on WhatsApp for human backup.
Can the CNN model handle all Indian license plate fonts and languages?
The base model is trained on standard Indian number plate fonts, but the AI companion guides you to retrain with your own dataset if your institute uses regional plates – the kit’s ESP32-S3 has enough flash for a custom model.
How do I integrate this with an existing barrier gate?
The MG996R servo can directly actuate a small gate model or trigger a relay (using the provided prototype board) to interface with a larger motor controller. Our AI companion includes wiring diagrams for both scenarios.
What happens if the camera fails to read plates at night?
The OV2640 supports on-board LED illumination; the AI companion can help you tune exposure and add an external IR illuminator for low-light conditions. Image preprocessing steps in the build also enhance contrast for night captures.
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