// LCD1602 to Arduino Uno connection example

#include <LiquidCrystal.h>
#include "DHT.h"
// Include the Servo library 
#include <Servo.h> 
// Declare the Servo pin 
int servoPin = 3; 
// Create a servo object 
Servo Servo1;

DHT dht(2, DHT22); //dht(DHTPIN, DHTTYPE);
LiquidCrystal lcd(12, 11, 10, 9, 8, 7); //LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  Serial.begin(9600);
   // We need to attach the servo to the used pin number 
   Servo1.attach(servoPin);
  lcd.begin(16, 2);  //16x2 design
  dht.begin();

}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  { 

  }
  // Compute heat index in Fahrenheit (the default)
  float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));

  lcd.setCursor(0,0);
  lcd.print("Humidity: ");
  lcd.print(h);
  lcd.print("%");

  lcd.setCursor(0,1);
  lcd.print("Temp: ");
  lcd.print((int)t);
  lcd.print(" T");

  if (t > 30 && h < 70 ) 
  {
     // Make servo go to 90 degrees 
   Servo1.write(180); 
    delay(100);
  }
  else
  {  Servo1.write(90); 
    delay(100);
    }
  
 

 
  
}