| Top View | Left View | Bottom View |
|---|---|---|
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This project is an Arduino-based autonomous robot designed to detect and extinguish small fires.It uses three infrared (IR) sensors to locate flames and a water pump to put them out, making it a great project for learning about robotics and sensor integration.The robot operates autonomously but also includes optional push buttons for manual control.
The robot's operation is governed by the code in the Autonomous_Firefighting_Robot.ino file.
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Calibration: When the robot is powered on, it takes initial readings from the three IR flame sensors to calibrate for the ambient light conditions. This helps to avoid false detections.
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Fire Detection & Extinguishing: The robot continuously reads values from the IR sensors.
- If a fire is detected by the front, right, or left sensor, the robot will stop.
- It then activates the water pump and sweeps a servo motor to aim the water stream at the fire.
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Searching Mode: If the sensors pick up a faint IR signal, the robot enters a "searching" mode. It will move forward or turn to investigate the potential fire source.
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Idle State: If no fire is detected, the robot remains stationary, and the water pump is turned off.
- Arduino Board (e.g., Uno)
- L298N Motor Driver
- Infrared (IR) Flame Sensors (x3)
- DC Motors (x2)
- Servo Motor (e.g., SG90)
- Water Pump
- Power Supply / Battery Pack
- Arduino IDE
The components should be connected to the Arduino according to the pin definitions in the code.
| From Component | To Arduino Pin |
|---|---|
| L298N Motor Driver | |
| Enable A (Right Motor) | Pin 10 |
| Input 1 | Pin 9 |
| Input 2 | Pin 8 |
| Input 3 (Left Motor) | Pin 7 |
| Input 4 | Pin 6 |
| Enable B (Left Motor) | Pin 5 |
| Sensors & Actuators | |
| Right IR Sensor | Pin A0 |
| Front IR Sensor | Pin A1 |
| Left IR Sensor | Pin A2 |
| Servo Motor | Pin A4 |
| Water Pump | Pin A5 |
- Assemble the Hardware: Connect the components according to the pinout table.
- Upload the Code: Open the
Autonomous_Firefighting_Robot.inofile in the Arduino IDE. - Install IDE: Ensure you have the Arduino IDE installed to upload the sketch.
- Power Up: Power the robot using the battery pack.
- Test: You can view sensor readings and status messages by opening the Serial Monitor in the Arduino IDE at a baud rate of 9600.