How to simulate GAS sensor(MQ4) using arduino uno in proteus ISIS profes...

MQ4 gas sensor Arduino code:
#include <LiquidCrystal.h>
#define gas_Pin 7
// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 13, en = 12, d4 = 11, d5 = 10, d6 = 9, d7 = 8;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
int gas_value;
void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  pinMode(6,OUTPUT);
}
void loop()
{
  gas_value = digitalRead(gas_Pin);
  if(gas_value==1)
  {
   digitalWrite(6,HIGH);
   lcd.setCursor (0, 1);
   lcd.print("GAS DEDUCTED");  //MQ-4 Deducted Methane and  CNG Gas
   lcd.display();
   }
   else
   {
    digitalWrite(6,LOW);
    lcd.setCursor (0, 1);
    lcd.print("NO GAS");
    lcd.display();
   }
   delay(1000);
   lcd.clear();
}

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MQ4 CNG Gas sensor:

                                                      MQ-4 Sensor (Methane, CNG Gas)

Compressed natural gas (CNG)

• When it comes to detecting a particular Gas the MQ series Gas sensors are the most commonly used ones. 
• Using an MQ sensor it detects a gas is very easy. You can either use the digital pin or the analog pin to accomplish this.

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How to interfacing  MQ4 sensor with arduino uno

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Click below link for interface Keypad with Arduino UNO

https://youtu.be/cnPb4pObkXc

Click below link for the MQ2 gas sensor

https://youtu.be/ALm-okkKRPY

Click below link for PIR sensor

https://youtu.be/4gRo1ijpMmQ

Click below link for the temperature sensor

https://youtu.be/1GJC_6eF7Xg

Click below link for vibration sensor

https://youtu.be/jiJAhxa687s

Click below link for M shape led blinking

https://youtu.be/S46J4L4KOu4

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