#include <DHT.h>
#include <LiquidCrystal_I2C.h>
DHT dht(2, DHT22);
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
  Serial.begin(9600);
  lcd.init();
  dht.begin();
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
}
void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  lcd.setCursor(0, 0);
  lcd.print("Humidity: ");
  lcd.setCursor(10, 0);
  lcd.print(h);
  lcd.setCursor(15, 0);
  lcd.print("%");
  lcd.setCursor(0, 1);
  lcd.print("Temp.: ");
  lcd.setCursor(7, 1);
  lcd.print(t);
  if (h < 60) {
    tone (5, 250, 250);
  }
  if (t < 10) {
    digitalWrite(4, LOW);
    digitalWrite(3, HIGH);
  } else if (t > 30) {
    digitalWrite(4, LOW);
    digitalWrite(3, HIGH);
    } else {
    digitalWrite(3, LOW);
    digitalWrite(4, HIGH);
  }
  delay(1000);
}