AGNI 2025 is an autonomous smart fire extinguisher robot designed to identify and extinguish flames using an ESP32 microcontroller. It integrates sensors, motors, and a water-based extinguishing system to deliver fire safety solutions for confined areas like homes, labs, and server rooms.
- 🔥 Real-time fire detection using an IR flame sensor
- 🤖 Autonomous navigation toward the fire source
- 💦 Smart water pump activation upon proximity to fire
- 💡 Visual LED indicator when flame is detected
- 📡 Optional IoT monitoring through Blynk or ThingSpeak
- 🔋 Battery-powered mobility and portability
- 🧠 Expandable with AI flame recognition or remote control
| Component | Quantity | Description |
|---|---|---|
| ESP32 Dev Board | 1 | Brain of the robot, handles logic & control |
| IR Flame Sensor | 1 | Detects presence of fire via infrared |
| L298N Motor Driver | 1 | Drives the motors based on ESP32 inputs |
| DC Motors + Wheels | 2 | Enables the robot to move |
| Water Pump + Tank | 1 | Sprays water on the fire |
| LED Indicator | 1 | Indicates detection status |
| Relay Module (Optional) | 1 | Controls water pump switching |
| 18650 Battery / Power Bank | 1 | Supplies power to the system |
| Chassis/Wheel Base | 1 | Mounting frame for the robot |
| Jumper Wires, Breadboard | - | For connecting all components |
- The flame sensor constantly monitors for infrared signals that signify fire.
- When fire is detected, ESP32 receives input and triggers motion:
- Motor Driver (L298N) moves the robot toward the flame.
- Upon nearing the flame (within range), the ESP32 activates a water pump via a relay.
- Simultaneously, an LED blinks to indicate that a flame was detected and is being suppressed.
- (Optional) Sensor data can be sent to a mobile dashboard using Blynk or Thingspeak for real-time monitoring.
| Component | ESP32 GPIO Pin |
|---|---|
| Flame Sensor | GPIO 34 |
| LED | GPIO 2 |
| Water Pump Relay | GPIO 13 |
| L298N Motor 1 | IN1, IN2 → GPIO 14, GPIO 27 |
| L298N Motor 2 | IN3, IN4 → GPIO 26, GPIO 25 |
| L298N ENA/ENB | Connected to 5V |