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

const int ldrPin = A0;    
#define ledPin 8   
#define DHTPIN 7          
#define DHTTYPE DHT22     

DHT dht(DHTPIN, DHTTYPE); // Pastikan pustaka DHT sudah terinstal
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(9600);
  dht.begin();
  lcd.begin(16, 2);
  lcd.backlight();
  pinMode(ledPin, OUTPUT);

  lcd.clear();
  lcd.setCursor(2, 0);
  lcd.print("SENSOR SUHU");
  lcd.setCursor(1, 1);
  lcd.print("SENSOR CAHAYA");
  delay(3000);

  lcd.clear();
  lcd.setCursor(3, 0);
  lcd.print("KELOMPOK 5");
  delay(3000);

  lcd.clear();
  lcd.setCursor(3, 0);
  lcd.print("ADE RAFLY");
  lcd.setCursor(4, 1);
  lcd.print("BAEHAQI");
  delay(2000);
  lcd.clear();
  lcd.setCursor(2, 0);
  lcd.print("INNEKE NURUL");
  lcd.setCursor(4, 1);
  lcd.print("FAUZIAH");
  delay(2000);
   lcd.clear();
  lcd.setCursor(2, 0);
  lcd.print("MUHAMAD IVAN");
  lcd.setCursor(4, 1);
  lcd.print("RAMADHAN");
  delay(2000);
}

void loop() {
  float suhu = dht.readTemperature();
  float kelembapan = dht.readHumidity();
  int ldrValue = analogRead(ldrPin);
  // Menampilkan data di Serial Monitor
  Serial.print("Suhu: ");
  Serial.print(suhu);
  Serial.print(" °C, Kelembapan: ");
  Serial.print(kelembapan);
  Serial.print("%, Intensitas Cahaya: ");
  Serial.println(ldrValue);
  
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Suhu: ");
  lcd.print(suhu);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("kelembapan: ");
  lcd.print(kelembapan);
  delay(2000);

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Cahaya:");
  lcd.print(ldrValue);
  lcd.print(" Lux");

  if (ldrValue < 300) { // Sesuaikan threshold sesuai kebutuhan
    digitalWrite(ledPin, HIGH);
    lcd.setCursor(5,1);
    lcd.print("GELAP"); // LED ON
  } else {
    digitalWrite(ledPin, LOW);
    lcd.setCursor(5,1);
    lcd.print("TERANG"); // LED OFF
  }
  delay(2000);
}