#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <DHT.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

#define DHTPIN 15 // Pin yang terhubung ke sensor DHT11
#define DHTTYPE DHT22 // Jenis sensor DHT (DHT11/DHT22)

#define OLED_SDA 21
#define OLED_SCL 22

#define LED_HOT 12 // Pin LED indikator cuaca panas (Merah)
#define LED_NORMAL 14 // Pin LED indikator cuaca terang (Kuning)
#define LED_COLD 13 // Pin LED indikator cuaca dingin (Biru)

#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(LED_HOT, OUTPUT);
  pinMode(LED_NORMAL, OUTPUT);
  pinMode(LED_COLD, OUTPUT);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.display();
  delay(2000);
  display.clearDisplay();
}

void loop() {
  // Membaca suhu dan kelembapan
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  // Menampilkan suhu dan kelembapan pada OLED
  display.clearDisplay();
  display.setTextSize(1);      
  display.setTextColor(SSD1306_WHITE); 
  display.setCursor(0,0);     
  display.println("Suhu: ");
  display.print(temperature);
  display.println(" C");
  display.println("Kelembapan: ");
  display.print(humidity);
  display.println(" %");

  // Menampilkan status cuaca berdasarkan kelembapan
  if (humidity < 40 && temperature > 36) {
    digitalWrite(LED_HOT, HIGH); // Panas
    digitalWrite(LED_COLD, LOW);
    digitalWrite(LED_NORMAL, LOW);
    display.println("Cuaca: Panas Terik");
  } else if (humidity > 65 && temperature < 30) {
    digitalWrite(LED_HOT, LOW);
    digitalWrite(LED_COLD, HIGH); // Hujan
    digitalWrite(LED_NORMAL, LOW);
    display.println("Cuaca: Hujan");
  } else {
    digitalWrite(LED_HOT, LOW);
    digitalWrite(LED_COLD, LOW); // Normal
    digitalWrite(LED_NORMAL, HIGH);
    display.println("Cuaca: Terang");
  }
  
  display.display();

  delay(2000); // Interval pembacaan sensor (2 detik)
}