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

#define DHTPIN 8     
#define DHTTYPE DHT22   

DHT dht(DHTPIN, DHTTYPE);
Servo myservo; 


int i=0;
void setup() {
  myservo.attach(9); 
  Serial.begin(115200);
  dht.begin();
}

void loop() {
  float temp = readTemperature(); 
  float humi = readHumidity();
  dht_show(temp,humi);
  controlServo(temp,humi);
  Serial.print("\n");
  delay(1000);
}

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

  Serial.print(F("Temperature: "));
  Serial.print(temperature);
  Serial.print(F("°C\t "));
  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print("%\t");
}

float readTemperature()
{
  float temperature = dht.readTemperature();
  return temperature;
}

float readHumidity()
{
  float humidity = dht.readHumidity();
  return humidity;
}

void controlServo(float temperature,float humidity)
{
  if(temperature <=-20.00 || temperature >=50.00 || humidity >=66.00)
  {
    myservo.detach(); 

    Serial.print("\nmyservo has been closed!!! \n");
  }
  else if(temperature >=23.00 && humidity <= 40.00)
  {
    myservo.write(30);
    Serial.print("myservo:30");
  }
  else if(temperature >=23.00 && humidity > 40.00)
  {
    myservo.write(45);
    Serial.print("myservo:45");
  }
  else if(temperature <23.00 && humidity <= 40.00)
  {
    myservo.write(60);
    Serial.print("myservo:60");
  }
  else if(temperature <23.00 && humidity > 40.00)
  {
    myservo.write(90);
    Serial.print("myservo:90");
  }
}