/*

 1). LCD pins:  
(1,3,5,16)th pins to ground, 
3rd pin through Registor
         
   2).(2,15)th  to 5V(Vcc)
   3).(RS,E, D4,D5,D6,D7): 
    to Arduino Digital pins
*/
#include<LiquidCrystal.h>
#include <DHT.h>
int DhtPin=7;
DHT dht(DhtPin,DHT22);
// including the Library (LiquidCrystal) for LCD

const int rs=12, en =11, d4 = 5, d5 =4,d6 =3, d7=2;// 
// assigning a variable name to each pins connected to Arduino
// Methods: DataType(int for integer type variable)variableName = pin no.;
LiquidCrystal lcd(rs,en,d4,d5,d6,d7);
// Library  variableName(name of device_pins which is conected to Arduino)

void setup() {
Serial.begin(9600);
lcd.begin(16,2);// LCD type: 16 column and 2 rows
dht.begin();
Serial.begin(9600);
}

void loop() {
lcd.setCursor(0,0);//(Column index , row index)
//setCursor(1,0) is a Library Function,where we passing the arguments 1,0
//lcd.print("Hello World");

lcd.scrollDisplayLeft();
//delay(500);
float temp=dht.readTemperature();
float humd=dht.readHumidity();


lcd.setCursor(0,0);
//lcd.print("Welcome");
lcd.print("Temperature:");
lcd.print(temp);
lcd.print("*deg celcius");
lcd.setCursor(0,1);
lcd.print("humidity:");
lcd.print(humd);
delay(159);
//scrollDisplayLeft() is a Library Function

}