Fire Detecting Using Arduino

Flame sensor

      Figure 1: Flame Sensor

• It is used to detect and respond to the presence of Flame (or) Fire.
• The detected flame depend on the installation.
• We will also include sounding an alarm.

Where We Can Fix 

• Schools/Colleges
• Transport
• Industrial Furnaces etc

Part Of List:

• Arduino Uno
• Flame Sensor
• Jumper Wire
• USB Cable
• Bread Board.

Connection:

Flame Sensor to Arduino:

Step 1: Vcc =Postive voltage input 5v

Step 2: A0 =Analog input pin to Arduino

Step 3: Gnd =Gnd to Gnd.

Buzzer:

   Figure2: Buzzer.

Step 1: Fix the buzzer in the bread board.

Step 2: Connect the positive pin to digital pin 9.

Step 3: Connect the negative pin to Gnd.

LED:

      Figure 3:LED

Step 1: Fix the led in the bread board.

Step 2: Connect the positive pin to digital pin 2.

Step 3: Connect the negative pin to Gnd.

Program:

#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 = 2; // Output pin for LED
int buzzer = 9; // 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 c#corner");
    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);
}

Explanation:

• This fire can be lightly spread and it will produced a sound.
• Then automatically emergency light also gets ON.
• The value of the sensor can be see in the serial monitor.
• When Fire is detected the led can be on (HIGH).

Output

                                                      Figure 5: Output