#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22 
DHT dht(DHTPIN,DHTTYPE);
float hum;
float temp;

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

#include <Servo.h>
Servo myservo;

int relay1 = 4;
int relay2 = 5;
int relay3 = 6;
int led1 =11;
int led2 =10;
int led3 =12;
// ------------------------------------------------
void setup() {

 Serial.begin(9600);
 pinMode(relay1, OUTPUT);
 pinMode(relay2, OUTPUT);
 pinMode(relay3, OUTPUT);
 dht.begin();

pinMode(led1,OUTPUT);
pinMode(led2,OUTPUT);
pinMode(led3,OUTPUT);


myservo.attach(9);

lcd.init();
lcd.backlight();
lcd.setCursor(4,0);
lcd.print("TANKKY");
lcd.setCursor(2,1);
lcd.print("SE.2/2 NO.20");
delay(3000);
lcd.clear();  

lcd.init();
lcd.backlight();
lcd.setCursor(3,0);
lcd.print("Humidity &");
lcd.setCursor(3,1);
lcd.print("Temperature");
delay(3000);
lcd.clear();  

}
// -----------------------------------------------------------------------
void loop() {

lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("Humidity:");
lcd.setCursor(9,0);
lcd.print(hum);
lcd.setCursor(15,0);
lcd.print("%");

lcd.setCursor(0,1);
lcd.print("  Temp  :");
lcd.setCursor(9,1);
lcd.print(temp);
lcd.setCursor(14,1);
lcd.print("C.");

if (hum >=40 && hum<= 60){
myservo.write(90);
digitalWrite(led1,1);
digitalWrite(led2,0);
digitalWrite(led3,0);
}

else if (hum >=60 && hum<= 100){
myservo.write(45);
digitalWrite(led1,0);
digitalWrite(led2,1);
digitalWrite(led3,0);
}

else if (temp >=0 && temp<= 20){
digitalWrite(relay1,1);
digitalWrite(relay2,0);
digitalWrite(relay3,0);
}
else if (temp >=20 && temp< 40){
digitalWrite(relay1,0);
digitalWrite(relay2,1);
digitalWrite(relay3,0);
}
else if (temp >=40 && temp<= 50){
digitalWrite(relay1,0);
digitalWrite(relay2,0);
digitalWrite(relay3,1);

}


else{
myservo.write(180);
digitalWrite(led1,0);
digitalWrite(led2,0);
digitalWrite(led3,1);

digitalWrite(relay1,0);
digitalWrite(relay2,0);
digitalWrite(relay3,0);
}








  hum=dht.readHumidity();
  temp=dht.readTemperature();

  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print("% , Temp: ");
  Serial.print(temp);
  Serial.println("Celsius: ");

}