WattWatcher

WattWatcher is a camera-based smart energy automation system that detects human presence in real time and controls electrical devices accordingly.

The system uses a fine-tuned YOLOv5 Nano model for human detection and integrates with an ESP32-CAM module to automate device switching through relay control. A Flask-based backend handles communication and monitoring.

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Tech Stack

• Python
• YOLOv5 Nano
• PyTorch
• OpenCV
• Flask
• ESP32-CAM

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Overview

1. The camera captures live video.
2. YOLOv5 Nano detects human presence.
3. Detection results are processed by a Flask backend.
4. If a person is detected, connected devices are turned ON.
5. If no person is detected for a set duration, devices are turned OFF.
6. Device events are logged for monitoring.

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Features

• Human-only detection using fine-tuned YOLOv5 Nano
• Real-time inference using OpenCV
• Automated device control via ESP32 GPIO and relay module
• Flask-based backend for communication and control
• Web interface for monitoring and manual override