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Fire Detection

The document outlines a project to create a fire detection system using a flame sensor and Arduino Uno, which triggers an alarm when a flame is detected. The system operates by detecting infrared light emitted from flames and activating a buzzer upon detection. It includes a list of required components, a circuit diagram, and Arduino code for implementation.

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avanish garkoti
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15 views3 pages

Fire Detection

The document outlines a project to create a fire detection system using a flame sensor and Arduino Uno, which triggers an alarm when a flame is detected. The system operates by detecting infrared light emitted from flames and activating a buzzer upon detection. It includes a list of required components, a circuit diagram, and Arduino code for implementation.

Uploaded by

avanish garkoti
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Fire Detector

Objective

The objective of this project is to build a fire detection system using a flame sensor and Arduino
Uno. When a flame is detected, the system will trigger an alarm using a buzzer, alerting the user to
the presence of fire or flame in the monitored area.

Principle

This fire detector system operates on the principle of infrared light detection. A flame sensor detects
IR light emitted from flames. When the sensor detects IR radiation from a fire:

• It sends a LOW signal to the Arduino.

• The Arduino, in turn, activates the buzzer, signaling fire detection. If no flame is present, the
sensor sends a HIGH signal, and the buzzer remains off.

Components Required

• Arduino Uno

• Flame Sensor Module

• Buzzer

• Jumper wires

• Breadboard (optional)

• USB cable

Working

1. Flame sensor detects IR light from flame.

2. If IR light is detected (indicating flame), sensor gives LOW signal.

3. Arduino reads the sensor value:

o If LOW → activates buzzer.

o If HIGH → buzzer remains OFF.

Circuit Diagram

Connections:
Flame Sensor Arduino Uno

VCC 5V

GND GND

DO Digital Pin 2

Arduino
Buzzer
Uno

+ Digital Pin 8

- GND

I can generate a circuit diagram for this. Would you like me to show it?

Arduino Code

// Fire Detector using Flame Sensor and Buzzer

const int flameSensorPin = 2; // Digital pin connected to flame sensor

const int buzzerPin = 8; // Digital pin connected to buzzer

void setup() {

pinMode(flameSensorPin, INPUT);

pinMode(buzzerPin, OUTPUT);

Serial.begin(9600);

void loop() {

int sensorState = digitalRead(flameSensorPin);

if (sensorState == LOW) {

// Flame detected

digitalWrite(buzzerPin, HIGH);

Serial.println(" Flame Detected! ");

} else {

// No flame

digitalWrite(buzzerPin, LOW);

Serial.println("No Flame");

}
delay(500); // Delay for stability

Applications

• Fire alarm systems

• Smart home safety

• Industrial fire monitoring

• Forest fire detection prototypes

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