Build a Privacy-First Face Detection Door Buzzer with ESP32

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 doorbell that doesn’t need Wi‑Fi to know someone is there. With this kit, you’ll build an offline face detection buzzer that uses a tiny OV2640 camera and an ESP32-S3 to recognize a human face inside the frame and instantly sound an alert — all processing happens on the board, no cloud, no privacy trade‑offs. It’s your first step into real‑world AI at the edge, right on your workbench.

What You'll Build

You’ll wire up the camera and buzzer on a breadboard, flash the pre‑trained MTMN face detection model onto the ESP32, and get a working prototype that detects a face and triggers the active buzzer. Green and red LEDs give visual feedback: green for ready, red when a face is spotted. The result is a tangible security gadget you can place outside your room door, workshop, or college lab gate — all without ever sending images to the internet.

What You'll Learn

• How to capture frames from a camera and run a lightweight face detection model on an ESP32‑S3
• Connecting and programming an active buzzer and LED indicators using GPIO pins
• Basics of embedded machine learning (TinyML) and why on‑device inference protects privacy
• Reading pinout diagrams, using a breadboard, and troubleshooting a 3‑wire sensor+actuator circuit

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11–12 students exploring AI and IoT, first‑year B.Tech ECE/EEE learners who need a working prototype for their semester project, and ATL Tinkering Lab innovators building privacy‑first demonstrations. It also fits Smart India Hackathon teams prototyping a safe doorbell, and IIT/NIT/VIT/BITS mini‑project submissions where on‑device inference is a key requirement.

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.