#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2); 
#include "DHT.h"
#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
int relay1=5;
void setup() 
{
  Serial.begin(9600);
  lcd.init();                     
  lcd.backlight();
  dht.begin();
  pinMode(relay1,OUTPUT);
}
void loop() 
{
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  Serial.println("TEST");
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Humidity="+String(h)+"%");  
  lcd.setCursor(0,1);
  lcd.print("Temperature="+String(t)+"C");  

    if(h>70)
    {
      digitalWrite(relay1,LOW);
    }
    else
    {
      digitalWrite(relay1,HIGH);
    }
  delay(500);
}