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

#define pinDHT 27
#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 64 

#define redLedPin 2  
#define yellowLedPin 4  

DHTesp dhtSensor;
Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(pinDHT, DHTesp::DHT22); 

  pinMode(redLedPin, OUTPUT);   
  pinMode(yellowLedPin, OUTPUT); 

  // Inisialisasi OLED
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (true);
  }

  delay(5000); 
  oled.clearDisplay(); 


  oled.setTextSize(1); 
  oled.setTextColor(WHITE);
}

void loop() {
  delay(5000); 
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  float temp = data.temperature;
  float hum = data.humidity;

  
  if (isnan(hum) || isnan(temp)) {
    Serial.println(F("DHT sensor reading failed!"));
    return;
  }

  oled.clearDisplay(); 

  oled.setCursor(0, 0);
  oled.print("Nama: Rayhan Farras R.");
  oled.setCursor(0, 10);
  oled.print("NIM: 22515070711007");

  oled.setCursor(0, 25);
  oled.print("Temperature: ");
  oled.print(temp);
  oled.print(" C");

  oled.setCursor(0, 35);
  oled.print("Humidity: ");
  oled.print(hum);
  oled.print(" %");

  
  if (temp < 0) {
    digitalWrite(redLedPin, HIGH); 
  } else {
    digitalWrite(redLedPin, LOW); 
  }

  
  if (hum > 60) {
    digitalWrite(yellowLedPin, HIGH); 
  } else {
    digitalWrite(yellowLedPin, LOW); 
  }

 
  if (temp < 0 && hum > 60) {
    oled.setCursor(0, 50);
    oled.setTextSize(1);
    oled.print("Warning!");
  }

  oled.display(); 

  
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print("% \tTemperature: ");
  Serial.print(temp);
  Serial.println(" C");
}