//LIBRARY
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

//LCD DAN SENSOR DHT
LiquidCrystal_I2C lcd(0x27, 16,2);
DHT dht(2, DHT22);

//PIN RELAY(KIPAS)
int kipas = 4;

void setup() {
  //INISIALIASI LCD
  lcd.init();
  lcd.backlight();
  
  //PIN RELAY(KIPAS)
  pinMode(kipas,OUTPUT);
  digitalWrite(kipas, LOW);

  //INISIALISASI SENSOR DHT
  dht.begin();

  Serial.begin(9600);

  }

void loop() {
  //VARIABEL SUHU DALAM FLOAT
  float suhu = dht.readTemperature();

  Serial.print("suhu: ");
  Serial.print(suhu);

  //MENGKOSONGKAN LCD
  lcd.clear();

  //MENULIS BARIS PERTAMA
  lcd.setCursor(0,0);
  lcd.print("KIPAS ANGIN OTOMATIS");
  lcd.setCursor(0,1);

  //MENULIS SUHU UDARA
  lcd.print("suhu: "); 
  lcd.setCursor(5,1);
  lcd.print(suhu);
  delay(1000);

  //MENENTUKAN SUHU DIATAS/DIBAWAH BATAS
  if(suhu>37.00){
    digitalWrite(kipas,LOW);
    lcd.print("ON");
    } 
  else{ 
    digitalWrite(kipas,HIGH);
    lcd.print("OFF");
    }
}