ESP32-S3 Fire Redundant System using IR Thermal Imaging

This project demonstrates a fire detection and response system using an ESP32-S3, an MLX90640 IR thermal camera, and a relay-actuated fire extinguisher. It detects high-temperature zones using thermal imaging and automatically activates an actuator while sending a real-time alert over WiFi.

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🎬 Demo Result

📽️ Watch detailed Result Video

• Fire simulated with a heat source
• Relay activates for 2 minutes
• WiFi alert is sent to a server endpoint

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🔧 Hardware Pin Allotment

Component	ESP32-S3 Pin	Description
Relay Module	GPIO34	Controls fire extinguisher
MLX90640 Sensor	I2C (SDA/SCL)	SDA: GPIO21, SCL: GPIO22
Actuator (via Relay)	External Power	5V/12V depending on load

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💡 Features

• Thermal sensing with MLX90640 (32x24 pixels)
• Configurable temperature threshold
• 2-minute relay trigger for actuator
• WiFi-enabled HTTP alert for remote monitoring
• Modular and extensible code

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📂 Project Files

• FireSystem.ino – Main Arduino sketch
• include/secrets.h – WiFi and server settings
• docs/pin_diagram.png – Visual pin mapping
• docs/result_demo.mp4 – System demo video

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🚀 How to Run (Execution Steps)

1. Install Required Libraries in Arduino IDE:

   • Adafruit MLX90640
   • WiFi
   • HTTPClient

2. Create include/secrets.h file:

   #pragma once
   #define WIFI_SSID "YourSSID"
   #define WIFI_PASSWORD "YourPassword"
   #define FIRE_ALERT_URL "http://your-server.com/fire-alert"

3. Connect the hardware as per docs/pin_diagram.png.

4. Upload FireSystem.ino to your ESP32-S3 via Arduino IDE.

5. Open Serial Monitor at 115200 baud to view live status.

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🔐 Security Note

Do not upload your secrets.h file to GitHub. It’s already excluded via .gitignore.

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