LPG Gas Leakage Detector Project- Arduino UNO Code

Description:

The code basically works on Arduino UNO or similar Arduinos. It accepts signal from the MQ-5 Gas Sensor and forwards it to Relay Module that in turn controls the LED, Exhaust fans and motors etc.

Code currently turns off lightings for 10 seconds and turns on exhaust and Buzzer for the escape of gas for the 10seconds which can be edited as per your choice. LPG Gas leakage detector project Arduino coding

Materials Used:

1) Arduino UNO

2) MQ-5 Gas Sensor

3) Relay Module(Single Channel)

4) LED light

5) Piezo Buzzer

6) Exhaust Fan

7) 9V Batteries-3 #to power the whole system

COPY THE CODE INTO ARDUINO EDITOR FROM BELOW-:

/*

Code started

   #define Sensor pin = A0;

   #define relay pin = D9;

   #define Buzzer Pin = D8;

       Code last edited by Dhruv dev 

        For any help  DM on

       https://www.instagram.com/dhruv__dev/

    

    */ 

float sensor=A0;

float relay=9;

float buzzer=8;

float gas_value;

void setup()

{

pinMode(sensor,INPUT);

pinMode(relay ,OUTPUT);

pinMode(buzzer,OUTPUT);

Serial.begin(9600);

}

void loop()

{

gas_value=analogRead(sensor);

Serial.println(gas_value);

if(gas_value >= 100)

{

digitalWrite(relay, LOW);

digitalWrite(buzzer, HIGH);

delay(10000);

digitalWrite(relay, HIGH);

digitalWrite(buzzer, LOW);

}

else

{

digitalWrite(relay, HIGH);

digitalWrite(buzzer, LOW);

}}