#include "Wire.h"
#include "LiquidCrystal_I2C.h"
#include "DHT.h"

#define DHT_PIN 4  
#define DHT_TYPE DHT22  
#define BUZZER_PIN 7  
#define LED_PIN 13  
DHT dht(DHT_PIN, DHT_TYPE);

LiquidCrystal_I2C lcd(0x27, 16, 2);  
void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2);
  lcd.backlight();
  dht.begin();
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  delay(2000);  
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Suhu: ");
  lcd.print(temperature);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Kelembaban: ");
  lcd.print(humidity);
  lcd.print(" %");

  Serial.print("Suhu: ");
  Serial.print(temperature);
  Serial.print(" C, Kelembaban: ");
  Serial.print(humidity);
  Serial.println(" %");

  if (temperature > 20.0) {
    tone(BUZZER_PIN, 1000); 
    digitalWrite(LED_PIN, HIGH);
  } else {
    noTone(BUZZER_PIN); 
    digitalWrite(LED_PIN, LOW); 
  }
}