#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h> 

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 16, 2);

#define relay 12
#define relay2 19

DHT dht(13, DHT22);
float temperature ;
float  humidity;

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  pinMode(relay, OUTPUT);
 pinMode(relay2, OUTPUT);

}
void loop() {
  temperature  = dht.readTemperature();
  humidity     = dht.readHumidity();

  Serial.print("Temperatue:\t"+String(temperature)+ "C");
  lcd.setCursor(0, 0);
  lcd.print("Temp : ");
  lcd.print(temperature);
  lcd.print(" C");

  Serial.println("Humidity: \t"+String(humidity)+ "%");
  lcd.setCursor(0, 1);
  lcd.print("Humi : ");
  lcd.print(humidity);
  lcd.print(" %");
  delay(1000);

if(temperature >= 50){
  digitalWrite(relay, HIGH);
  } else if (temperature <= 45) {
  digitalWrite(relay, LOW);
      }
if(humidity <= 30){
  digitalWrite(relay2, HIGH);
 }else if (humidity >= 60) {
  digitalWrite(relay2, LOW);
  }
}