2.2 Software programming
The software that we used to create this source code is Arduino Software
#include <Wire.h> // Provide
within Arduino IDE
#include <LiquidCrystal_I2C.h>
//LCD-I2C library
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4,
5, 6, 7, 3, POSITIVE); //LCD Port
configuration
const int sensorPin= 0;
const int ledPin= 13;
const int ledPin2= 12;
int gas_level;
void setup()
{
Serial.begin(9600); // Serial baud rate configuration
lcd.begin(16,2); //Intialization LCD
Serial.begin(115200); //sets the baud
rate for data transfer in bits/second
pinMode(sensorPin, INPUT);//the gas
sensor will be an input to the arduino
pinMode(ledPin, OUTPUT);//the LED
serves an output in the circuit
pinMode(ledPin2, OUTPUT);//the LED
serves an output in the circuit
lcd.begin(16, 2);
lcd.print(" LPG
GAS ");
lcd.setCursor(0,1);
lcd.print(" DETECTOR ");
delay(2000);
}
void loop()
{
digitalWrite(ledPin, HIGH);
digitalWrite(ledPin2, LOW);
lcd.clear();
lcd.print(" GAS
");
lcd.setCursor(0, 1);
lcd.print(" DETECTED
");
delay(400);
digitalWrite(ledPin, LOW);
delay(500);
}
else{
digitalWrite(ledPin2, HIGH);
lcd.clear();
lcd.print(" NO GAS
");
lcd.setCursor(0,1);
lcd.print(" DETECTED ");
delay(1000);
}
}
|
