GAS Leakage Detector Using Arduino

Just Do Electronics September 26, 2021

Circuit Diagram :-

Code :-

 
//Prateek
//www.prateeks.in

#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3);

int gasValue = A0;
int data = 0;
int buzzer = 4;
int G_led = 5;
int R_led = 6;

void setup()
{
  pinMode(buzzer, OUTPUT);
  pinMode(R_led, OUTPUT);
  pinMode(G_led, OUTPUT);
  randomSeed(analogRead(0));
  mySerial.begin(9600);
  Serial.begin(9600);
  lcd.begin(16, 2);
  pinMode(gasValue, INPUT);
  lcd.print (" Gas Leakage ");
  lcd.setCursor(0, 1);
  lcd.print (" Detector Alarm ");
  delay(3000);
  lcd.clear();
}

void loop()
{

  data = analogRead(gasValue);
  Serial.print("Gas Level: ");
  Serial.println(data);
  lcd.print ("Gas Scan is ON");
  lcd.setCursor(0, 1);
  lcd.print("Gas Level: ");
  lcd.print(data);
  delay(1000);

  if ( data > 90) //
  {
    digitalWrite(buzzer, HIGH);
    digitalWrite(R_led, HIGH);
    digitalWrite(G_led, LOW);
    SendMessage();
    Serial.print("Gas detect alarm");
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Gas Level Exceed");
    lcd.setCursor(0, 1);
    lcd.print("SMS Sent");

    delay(1000);

  }
  else
  {
    digitalWrite(buzzer, LOW);
    digitalWrite(R_led, LOW);
    digitalWrite(G_led, HIGH);
    Serial.print("Gas Level Low");
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Gas Level Normal");

    delay(1000);
  }

  lcd.clear();
}

void SendMessage()
{
  Serial.println("www.prateeks.in");
  mySerial.println("AT+CMGF=1");
  delay(1000);
  mySerial.println("AT+CMGS=\"+918830584864\"\r");
  delay(1000);
  mySerial.println("Excess Gas Detected.");
  mySerial.println(data);
  delay(100);
  mySerial.println((char)26);
  delay(1000);
}

Video :-

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