Project #5
the PyroSafe Monitoring System
The PyroSafe Monitoring System is a practical fire detection solution designed to provide immediate alerts in the event of a fire. It uses a flame sensor to detect flames and activates a red blinking LED, a buzzer, and wireless notifications via Bluetooth. When the fire is extinguished, the system resets, turning off the red LED and buzzer while displaying a "stable environment" message on the connected device. The PyroSafe system ensures continuous monitoring, making it suitable for high-risk areas like homes and offices.
Technical Breakdown
.png)
Schematic Diagram
Components Used:
1. Arduino UNO Board
2. IR Flame Sensor Module
3. HC 05 Bluetooth Module
4. Piezoelectric Buzzer
5. 3mm LEDs (Blue and Red)
6. 220Ω Resistors x 3
7. 1kΩ Resistors x 1
8. Jumper wires
Key Features
1. Flame/Fire Detection
The system uses a flame sensor to detect the presence of fire, ensuring a rapid response to potentially dangerous situations. This makes it an efficient safety tool for environments at high risk of fire hazards, such as kitchens, workshops, or storage facilities with flammable materials.
2. LED Visual Alerts
A red LED blinks continuously to signal the detection of fire, ensuring immediate visual attention, while a stable blue LED indicates when the environment is safe. This transition between alert and stable states provides a clear, unmissable visual cue, allowing users to quickly assess the situation without needing to check other notifications
3. Audible Alarm
The integrated buzzer emits a loud beep when fire is detected, offering an additional layer of alert through sound. This ensures users are notified even if they are in a different room or not in the line of sight of the device, making it ideal for larger spaces.
4. Bluetooth Notification
The system is equipped with an HC-05 Bluetooth module that sends real-time notifications to a connected device, such as a smartphone or tablet. This allows users to stay updated on the fire status even when they are away from the vicinity of the device, ensuring that critical alerts are received wirelessly, adding mobility to safety management.
5. Automated Reset
Once the fire is extinguished, the system automatically performs a self-check to confirm the environment is safe, before resetting the LEDs and alarm to their default states. This allows for continuous monitoring without manual intervention, providing a reliable and hands-free safety solution.
Demonstration Video
In the demo, once I upload the code, "PyroSafe Monitor is Active" is displayed on both the Arduino serial monitor and the Bluetooth terminal on my tablet. The system is now ready to detect fire. When fire is detected, "Fire! Fire!" is printed on both devices, and the red LED begins to blink, accompanied by the buzzer. After the fire is extinguished, the system waits briefly to ensure the environment is truly stable, then prints 'Environment is stable' and resets the LEDs and alarm, allowing it to continuously monitor for future incidents.
Demonstrating the PyroSafe Monitor's real-time alert and notification of detected fires
Notes
The PyroSafe Monitoring System was a meaningful project for me, especially since it introduced me to two new components: the HC-05 Bluetooth module and the flame sensor.
Initially, I built the system without Bluetooth notifications, but adding wireless alerts significantly improved its practicality, allowing users to receive updates even when they’re not near the device.
Integrating the HC-05 Bluetooth module was challenging, particularly learning how to manage the voltage. I used a voltage divider to reduce the 5V output from the Arduino down to around 4.09V, protecting the module from damage. Once this was done, I successfully sent real-time fire alerts to a paired device, elevating the project’s functionality.
Working with the flame sensor was also new for me. Its quick response time made it a key part of the system, detecting flames instantly and activating both the visual and audible alarms. Seeing how smoothly everything came together—especially the integration of Bluetooth—was a major highlight.
I’m proud of how far I’ve progressed in my electronics journey with this project. Despite initial challenges, like understanding the Bluetooth protocol, the end result was rewarding. This project showcases a practical and effective system for real-world fire detection, combining visual, sound, and wireless notifications to ensure safety.
Check out my other projects here!