// Projek Kelompok C3
// Daffi, Bunga, Geo
// Monitoring Suhu dan Kelembapan

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

#define DHTPIN 18
#define DHTTYPE DHT22
#define buzzer 19
#define bluled 4
#define yelled 16
#define redled 17

DHT dht(DHTPIN, DHTTYPE);
// ..LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(9600);
  Serial.println("Sistem Monitoring Suhu");
  Serial.print("Daffi, Geo, Bunga");
  // lcd.begin(16, 2);
  dht.begin();
  // lcd.backlight();
  
  pinMode(bluled, OUTPUT);
  pinMode(yelled, OUTPUT);
  pinMode(redled, OUTPUT);
  pinMode(buzzer, OUTPUT);
}

void loop() {
  float t = dht.readTemperature();
  float h = dht.readHumidity();

  // lcd.setCursor(0, 0);
  // lcd.println("Suhu=");
  // lcd.print(t);
  // lcd.println(" C");
  // lcd.setCursor(0, 1);
  // lcd.println("Lembab=");
  // lcd.print(h);
  // lcd.println(" %");
  // delay(500);
  // lcd.clear();

  // Menyalakan LED built-in Arduino jika suhu mencapai ambang tertentu
  if (t < 18) {
    digitalWrite(bluled, HIGH);  // Menyalakan LED built-in Arduino
    digitalWrite(redled,LOW);
    digitalWrite(yelled,LOW);
    // lcd.setCursor(4,0);
    // lcd.println("Indikator");
    // lcd.setCursor(3,1);
    // lcd.print("Suhu Dingin"); 
    digitalWrite(buzzer, HIGH);
    tone(buzzer, 10);
    delay(750);
    digitalWrite(buzzer, LOW);
    noTone(buzzer);
    
  } else if (t >= 18 && t<= 25){
    digitalWrite(yelled, HIGH);
    digitalWrite(redled,LOW);
    digitalWrite(bluled,LOW);
    // lcd.setCursor(4,0);
    // lcd.println("Indikator");
    // lcd.setCursor(3,1);
    // lcd.print("Suhu Normal");
    delay(750);

  } else if (t > 25){
    digitalWrite(redled, HIGH); 
    digitalWrite(bluled,LOW);
    digitalWrite(yelled,LOW);
    // lcd.setCursor(4,0);
    // lcd.println("Indikator");
    // lcd.setCursor(3,1);
    // lcd.print("Suhu Panas");
    tone(buzzer, 20);
    delay(750);
    digitalWrite(buzzer, LOW);
    noTone(buzzer);
  }
}