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

#define DEBUG 1
#define DHTYPE DHT22
#define DHTPIN 2
#define servopin 10

float h;
float t;

LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo servo;
DHT dht(DHTPIN, DHT22);

void setup() {
  Serial.begin(9600);
  servo.attach(servopin);
  Serial.println("DHT start");
  dht.begin();
  lcd.init();
  lcd.backlight();
  servo.write(0);
}

void loop() {
  lcd.clear();
  lcd.home();
  lcd.display();
  h = dht.readHumidity();
  t = dht.readTemperature();
  if (isnan(h) || isnan(t))
  {
    lcd.home();
    lcd.print("ERROR");
  }
  else 
  {
    lcd.home();
    lcd.print("Humidity: ");
    lcd.setCursor(0, 1);
    lcd.print("Temperature: ");
    lcd.setCursor(9, 0);
    lcd.print(h);
    lcd.setCursor(12, 1);
    lcd.print(t);
    delay(1000);
  }

  if (!isnan(h))
  {
    if (h >= 70)
    {
      servo.write(0);
    }
    else if (h >= 30 && h <= 69)
    {
      servo.write(60);
    }
    else if (h <= 29)
    {
      servo.write(0);
    }
  }
}