ESP32-S3 Vision Node Kit: Doorway Object Detection with MQTT Alerts
Build a Doorway Object Detector with MQTT Alerts
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn a doorway into a smart alert zone. This kit combines an ESP32-S3 with a compact OV2640 camera module inside a small ABS enclosure. When someone passes through, the on-board LED lights up and an MQTT notification is sent to your phone, making it ideal for smart home monitoring, classroom demos, or hackathon prototypes.
What You'll Build
A wall-mounted camera node that acts as a vigilant sentinel at any entrance. The system captures frames, detects changes using simple motion detection algorithms, and instantly triggers a bright LED flash along with an MQTT message - all within a footprint smaller than a credit card reader.
What You'll Learn
- Configure ESP32-S3 with OV2640 camera for continuous frame capture
- Implement motion detection using frame differencing or edge detection
- Publish MQTT alerts to a local broker and view them on your smartphone
- Solder components onto a PCB prototype board and assemble a neat enclosure
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| OV2640 Camera Module | 1 |
| LM2596 Buck Converter | 1 |
| 5mm LED | 2 |
| 100nF Capacitor | 5 |
| PCB Prototype Board | 2 |
| ABS Enclosure Box | 1 |
| 5V 2A Power Supply | 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
Ideal for CBSE Class 11-12 students building IoT projects, B.Tech ECE/EEE first-year undergraduates exploring embedded systems, Smart India Hackathon teams needing a rapid prototype, and ATL Tinkering Lab mentors guiding miniaturized electronics. If you've completed a basic Arduino project and want to step into computer vision and networked alerts, this is your next challenge.
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 on the packaging to access the AI build companion trained specifically for this kit. It provides step-by-step guidance, and you can also reach us on WhatsApp for live troubleshooting.
Do I need prior soldering experience?
The kit includes a soldering iron and solder wire, along with a beginner-friendly soldering guide in the AI companion. You'll learn while building, and we walk you through every joint.
Can I connect this to Home Assistant or Node-RED?
Absolutely. The node publishes standard MQTT messages. You can point it to your existing broker and integrate it with Home Assistant, Node-RED, or any dashboard that subscribes to the topic.
What if the camera struggles in low light?
The OV2640 sensor performs best with ambient light. The kit includes tips on positioning near existing light sources, and the onboard LED can be repurposed as a small illuminator. The AI companion helps you adjust detection thresholds for dim environments.
ESP32-S3 with OV2640 camera in a small box detects objects at doorway. LED and MQTT alert on detection.
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.
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