#include <LiquidCrystal.h>
#include <DHT.h>;
#define DHTPIN 7     
#define DHTTYPE DHT22 
#define led 10
#define ir 9
DHT dht(DHTPIN, DHTTYPE);
int Contrast =75;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int chk;
float hum;
float temp;

void setup()
{
  pinMode(led, OUTPUT);
  pinMode(ir, INPUT);
  analogWrite(6, Contrast);
  lcd.begin(16, 2);
  dht.begin();
}
void loop()
{
  int ir_val = digitalRead(ir);
  hum = dht.readHumidity();
  temp= dht.readTemperature();
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(hum);

  lcd.setCursor(0, 0);
  lcd.print("temp: ");
  lcd.print(temp);
  if(ir_val == HIGH){
    digitalWrite(led, HIGH);
  }
  else{
    digitalWrite(led, LOW);
  }
}