Smart Doorbell with Face Recognition

A Smart Doorbell does more than chime - it sees who's at the door. Using ESP32-CAM with face recognition, you can identify visitors, capture photos, and receive smartphone notifications when someone approaches or rings.

Why This Project Is Popular

Video doorbells (Ring, Nest) are popular consumer products. Building your own teaches computer vision, notification systems, and security applications. The project combines multiple technologies in a practical, useful device.

Project Ideas or Guide

Build an intelligent doorbell:

• Camera: ESP32-CAM captures visitor photos.
• Face Detection: Basic - detect if human face is in frame.
• Face Recognition: Advanced - match against registered family members.
• Motion Detection: PIR sensor triggers camera when someone approaches.
• Button Press: Physical doorbell button triggers notification.
• Mobile Alert: Send photo to Telegram/Blynk when triggered.
• Cloud Storage: Save visitor photos to Firebase/SD card.

Components Used

• ESP32-CAM
• FTDI Programmer
• PIR Motion Sensor
• Doorbell Button
• Buzzer
• Power Supply
• SD Card (optional)

FAQ

Q: Can it recognize known visitors?

A: Yes, with face recognition model you can match against registered faces.

Q: How long does battery last?

A> For wired doorbells, power is continuous. Battery version needs solar charging.