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

#define DHTPIN 5       
#define DHTTYPE DHT22  

const int servoPin = 3;           
const int minTemperature = -40;   
const int maxTemperature = 80;    

DHT dht(DHTPIN, DHTTYPE); 
Servo servo1;             

void setup() {
  Serial.begin(9600);
  servo1.attach(servoPin);  
  servo1.write(0);          
  dht.begin();            
}

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

  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" *C");

  if (isnan(humidity) || isnan(temperature)) { 
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  controlServo(temperature); 
}

void controlServo(float temperature) {
  if (temperature >= minTemperature && temperature <= 10) {
    servo1.write(0);   
  } else if (temperature > 10 && temperature <= 30) {
    servo1.write(45); 
  } else if (temperature > 30 && temperature <= 50) {
    servo1.write(90);  
  } else if (temperature > 50 && temperature <= 70) {
    servo1.write(135); 
  } else if (temperature > 50 && temperature <= maxTemperature) {
    servo1.write(180); 
  }
}