#include <LiquidCrystal_I2C.h>
#include "DHT.h"
#define DHTPIN 13
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,16,2);
void setup()
{
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  dht.begin();
  pinMode(34, OUTPUT);
  pinMode(35, OUTPUT);
  pinMode(32, OUTPUT);
}
void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  lcd.setCursor(0,0);
  lcd.print("Humidity:");
  lcd.setCursor(9,0);
  lcd.print(humidity);
  lcd.setCursor(0,1);
  lcd.print("Temp:");
  lcd.print(temperature);
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("°C");

  if(temperature>=0 && temperature<=20){
    digitalWrite(32,HIGH);
    digitalWrite(34,LOW);
    digitalWrite(35,LOW);
    Serial.print(temperature);
  }
  else if(temperature>20 && temperature<=30){
    digitalWrite(32,LOW);
    digitalWrite(34,LOW);
    digitalWrite(35,HIGH);
    Serial.print(temperature);
  }
  else {
    digitalWrite(32,LOW);
    digitalWrite(34,HIGH);
    digitalWrite(35,LOW);
    Serial.print(temperature);
  }
   
}