🔥 IoT Smart Fire Alarm 🚨

IoT Smart Fire Alarm is a smart fire detection system that combines an ESP32 microcontroller with a React Native mobile application. The system monitors environmental conditions and sends real-time alerts to users via Wi-Fi when signs of fire (heat/smoke) are detected.

📱 Mobile Application

• Technology: React Native (Expo)

• Features:

  • Real-time display of data from ESP32 (temperature, smoke levels).
  • Instant fire alerts via push notifications.
  • User-friendly and responsive UI.
  • Option to connect and monitor multiple ESP32 devices.

🔧 Hardware

• ESP32 microcontroller with Wi-Fi

• Sensors:

  • Temperature sensor (e.g., DHT11, DHT22)
  • Smoke sensor (e.g., MQ-2)
  • Flame sensor (e.g., KY-026)

• Optional: Buzzer, LED for local alerts

🌐 System Architecture

[Temperature & Smoke Sensors] → [ESP32] → [Wi-Fi] → [Firebase/MQTT] → [React Native App]

• ESP32 collects sensor data and pushes to a backend (Firebase or MQTT).
• The mobile app listens for updates and triggers alerts when thresholds are exceeded.

🚀 Getting Started

1. ESP32 Firmware

• Written in Arduino/C++
• Reads sensor data and sends to cloud
• Configure Wi-Fi credentials and Firebase/MQTT endpoints in code

2. React Native App

• Clone this repo
• Run the app:

npm install
npx expo start

• Make sure the app is connected to the same backend as ESP32.

🛡️ Alerts & Safety

• Alert levels are customizable (e.g., temperature > 50°C or high smoke density).
• Supports both visual and audible alerts on device and mobile.

📦 Future Improvements

• Add history and analytics of fire alerts.
• Integrate voice assistant control (e.g., Google Assistant).
• Support for SMS or email alerts.

🤝 Contributors

• [Kien Duong Trung] - Mobile App Developer
• [KienTech] - Embedded System Developer

---