#include "DHT.h"

#define DHTPIN 2 // definisikan pin yang digunakan utk sensor DHT22

// Tentukan jenis DHT yang digunakan (pilih salah satu)
// Saat ini yang dipilih adalah DHT22
#define DHTTYPE DHT22 // DHT 22 


DHT dht(DHTPIN, DHTTYPE);

#define RELAY_ON 0
#define RELAY_OFF 1
#define RELAY_1  8   // pin yang digunakan yaitu pin 8
#define RELAY_2  7

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

#define suhuon 11
#define suhuoff 12


void setup() {
  Serial.begin(9600); 
  Serial.println("DHT22 test!");
  dht.begin();
  
 // Set pin as output.
  pinMode(RELAY_1, OUTPUT);
  pinMode(RELAY_2, OUTPUT);
  pinMode(suhuon, OUTPUT);
  pinMode(suhuoff, OUTPUT);
   
 // Initialize relay one as off so that on reset it would be off by default
  digitalWrite(RELAY_1, RELAY_OFF);

   lcd.begin(16, 2);
  lcd.setCursor(2,0);
  lcd.print("KELOMPOK");
  lcd.setCursor(3,1);
  lcd.print("Rustu,Mujahid");
  delay(5000);
  lcd.clear();
  
  lcd.setCursor(2,0);
  lcd.print("Taufik,Arif,");
  lcd.setCursor(2,1);
  lcd.print("Munaz");
  delay(5000);
  lcd.clear();
}

void loop() {
  // Baca humidity dan temperature
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  // Cek hasil pembacaan, dan tampilkan bila ok
  if (isnan(t) || isnan(h)) {
    Serial.println("Failed to read from DHT");
    return;
  }

  if (t<36.10)// ON
{
  digitalWrite(RELAY_1, RELAY_ON);
  digitalWrite(suhuon, HIGH);
  digitalWrite(suhuoff, LOW);
}
 else if (t>37.55)//OFF
{
  digitalWrite(RELAY_1, RELAY_OFF);
  digitalWrite(suhuoff, HIGH); 
  digitalWrite(suhuon, LOW);
}
  if (h<38)// ON
{
  digitalWrite(RELAY_2, RELAY_ON);
  digitalWrite(suhuon, HIGH);
  digitalWrite(suhuoff, LOW);
}
 else if (t>60)//OFF
{
  digitalWrite(RELAY_2, RELAY_OFF);
  digitalWrite(suhuoff, HIGH); 
  digitalWrite(suhuon, LOW);
}
    Serial.print("Humidity: ");
    Serial.print(h);
    Serial.print(" %t");
    
    Serial.print("Temperature: "); 
    Serial.print(t);
    Serial.println(" *C");

  lcd.setCursor(0,0);
  lcd.print("Kelembaban: "); 
  lcd.print(h);
  lcd.print(" %      ");
  lcd.setCursor(0,1);
  lcd.print("Suhu: "); 
  lcd.print(t);
  lcd.print(" C      ");   
}