How to Make Gas Leak Detector & Auto Exhaust Fan

Hii welcome Back Friend I hope all of you will be fine

Here today I will make Gas Leak Detector & Auto Exhaust Fan Using Arduino

Objectives of the Project

• Detect Gas Leakage (like LPG leak, Butane leak, Methane leak) or any such petroleum based gaseous substance that can be detected using MQ5 Sensor.
• Setup an SMS based Alert Mechanism and send 3 SMS (3 alert messages) to 2 specified mobile numbers (input inside the arduino program)
• Produce a sound alarm upon gas leak and stop the alarm once gas leak is under control (gas presence in atmosphere is under normal range)
• Display status in an LCD using a 16×2 LCD module.

A gas sensor is a device which detects the presence or concentration of gases in the atmosphere. Based on the concentration of the gas the sensor produces a corresponding potential difference by changing the resistance of the material inside the sensor, which can be measured as output voltage.

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
#include <SoftwareSerial.h>
 
SoftwareSerial mySerial(9,8);
 
int gasValue = A0; 
int data = 0;
int relay = 6; 
int pir_Status; 
int buzzerPin = 7;

void setup()
{
randomSeed(analogRead(0));
mySerial.begin(9600); 
Serial.begin(9600); 
 lcd.init();
 lcd.backlight();
pinMode(gasValue, INPUT);
pinMode(relay, OUTPUT);
pinMode(buzzerPin, OUTPUT);
lcd.setCursor(2,0);
lcd.print ("WELCOME TO  ");
lcd.setCursor(2,1);
lcd.print ("JUSTDOELECTRONICS");
lcd.setCursor(6,2);
lcd.print ("DESIGN By :-");
lcd.setCursor(6,3);
lcd.print ("PRATEEK");
delay(3000);
lcd.clear();
}
 
void loop(){
data = analogRead(gasValue);
 
Serial.print("Gas Level: ");
Serial.println(data);
lcd.clear();
lcd.setCursor(1,0);
lcd.print ("Exhaust fan :- OFF");
lcd.setCursor(2,1);
lcd.print("Gas Level: ");
lcd.print(data);
delay(1000);
 
if ( data > 700) 
{
SendMessage();
Serial.print("Gas detect alarm");
lcd.clear();
lcd.setCursor(1,0);
lcd.print ("Exhaust fan :- ON");
lcd.setCursor(2,2);
lcd.print("Gas Level Exceed");
lcd.setCursor(2,3);
lcd.print("SMS Sent");
delay(1000);
 digitalWrite(buzzerPin, HIGH);
 digitalWrite(relay, HIGH);

}
else
{
 
Serial.print("Gas Level Low");
lcd.clear();
lcd.setCursor(2,3);
lcd.print("Gas Level Normal");
delay(1000);
digitalWrite(buzzerPin, LOW);
 digitalWrite(relay, LOW);

}
 
//lcd.clear();
}
 
void SendMessage()
{

delay(1000);
}

NextDFM Software From NextPCB

A PCB Design Problems Detector, An Engineering Solution ProviderImport the Gerber file with one click. No need for complicated file reading steps to review easily and improve efficiency.

Download Software

Help you quickly familiarize DFM design specifications and production needs to determine whether there are any manufacturing constraints

Features

Make PCB design more standard Prevent the quality flaw

Impedance calculation function and lamination automation

Automatically generate the best puzzle

CAM350 free alternative version

Check Gerber files anytime, anywhere and parse it with one click

Instate Quote and evaluate delivery time Reduce cost and improve benefit

these are advantage comparing to Eagle and Altium