#include <Wire.h>
#include <LiquidCrystal_I2C.h> 
#include <DHT.h>
#include <ESP32Servo.h>
#define DHTPIN 2      
#define DHTTYPE DHT22 

DHT dht(DHTPIN, DHTTYPE); 

LiquidCrystal_I2C lcd(0x27, 16, 2); 

const int servoPin = 15;

Servo servo;


void setup() {
  Serial.begin(9600); 
  dht.begin();
  lcd.init(); 
  lcd.backlight(); 
  lcd.setCursor(0, 0);
  lcd.print("Temp:         C"); 
  lcd.setCursor(0, 1); 
  lcd.print("Humi:         %");
  servo.attach(servoPin, 500, 2400);
}

int pos = 0;
int leistung = -1;

void loop() {
  delay(2000); 
  
  float temperature = dht.readTemperature(); 
  float humidity = dht.readHumidity(); 
  
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C, Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");

  lcd.setCursor(7, 0); 
  lcd.print(temperature); 
  lcd.setCursor(7, 1); 
  lcd.print(humidity); 
  lcd.setCursor(14, 1);
  lcd.print("%");

  if(temperature <= 20){
    leistung = 50;
  }else if(temperature >= 40){
    leistung = 1;
  }else{
    leistung = (int)(((40 - temperature) / 20.0) * 50);
  }
  Serial.print(leistung);

  for (pos = 0; pos <= 180; pos += 1) {
    servo.write(pos);
    delay(leistung);
  }
    for (pos = 180; pos >= 0; pos -= 1) {
    servo.write(pos);
    delay(leistung);
  }
}