Fire Detection Using Arduino and Flame Sensor

Flame sensor is interfaced to arduino to detect Flame. Led and buzzer are interfaced to arduino to indicate the flame.

Hard ware components required:-

1) Flame sensor (Analogue Output)

2)Arduino

3)Bread board

4)LED

5)Buzzer

6)Connecting wires

Flame sensor interfacing to Arduino

Flame sensor to Arduino

vcc -> vcc

gnd -> gnd

A0 -> A0

Led interfacing to Arduino

LED +ve is connected to 9th pin of Arduino

LED -ve is connected to gnd pin of arduino

For detailded description regarding led interfacing refer the below link

https://www.instructables.com/id/LED-blinking-using-Arduino/

Buzzer interfacing to Arduino

Buzzer +ve is connected to 12th pin of Arduino

Buzzer -ve is connected to GND pin of Arduino

#include<SoftwareSerial.h>

int sensorPin = A0; // select the input pin for the LDR

int sensorValue = 0; // variable to store the value coming from the sensor

int led = 9; // Output pin for LED

int buzzer = 12; // Output pin for Buzzer

void setup() {

// declare the ledPin and buzzer as an OUTPUT:

pinMode(led, OUTPUT);

pinMode(buzzer,OUTPUT);

Serial.begin(9600);

}

void loop()

{

Serial.println("Welcome to TechPonder Flame Sensor Tutorial");

sensorValue = analogRead(sensorPin);

Serial.println(sensorValue);

if (sensorValue < 100)

{

Serial.println("Fire Detected");

Serial.println("LED on");

digitalWrite(led,HIGH);

digitalWrite(buzzer,HIGH);

delay(1000);

}

digitalWrite(led,LOW);

digitalWrite(buzzer,LOW);

delay(sensorValue);

}

Copy and paste the above code in Arduino ide and upload to Arduino UNO.
Thanks,

TechPonder.

Results are displayed on the serial window.

When there is Flame the LED and Buzzer automatically ON and when there is no flame amount Arduino automatically turns off LED and Buzzer.

Here based on our room condition the threshold value we took was 100 for the Flame sensor.

When we place a Flame Near Flame Sensor Arduino automatically turns on the LED and Buzzer. When we remove Flame from the flame sensor Arduino automatically Turns Off LED and buzeer.

Thanks,
TechPonder.