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

#define LED_merah 2
#define LED_kuning 4
#define LED_biru 5
const int DHT_PIN = 15;
#define buzzer 34
#define DHTTYPE DHT22 

DHTesp dhtSensor;;
#define LEBAR_LAYAR 128 // Lebar layar OLED yang digunakan
#define TINGGI_LAYAR 64 // Tinggi layar OLED yang digunakan

Adafruit_SSD1306 display(128, 64, &Wire, -1);

void setup() {
  pinMode(LED_merah, OUTPUT);
  pinMode(LED_kuning, OUTPUT);
  pinMode(LED_biru, OUTPUT);
  pinMode(buzzer, OUTPUT);
  Serial.begin(9600);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.setTextColor(1);
  display.setTextSize(1);
  display.display();
}

void loop() {
  delay(2000);
  display.clearDisplay();
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();

  float t = data.temperature;
  float h = data.humidity;

  if (isnan(h) || isnan(t)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  display.setCursor(20,0);
  display.print("Suhu: ");
  display.print(t);
  display.print(" C");

  if(t>35){
    digitalWrite(LED_merah, HIGH);
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_biru, LOW);
    display.setCursor(0, 20);
    display.print("Suhu Terlalu Panas");
    tone(buzzer, 150);
  }
  else if(t>29){
    digitalWrite(LED_kuning, HIGH);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_biru, LOW);
    display.setCursor(0, 20);
    display.print("Suhu Normal");
  }
  else{
    digitalWrite(LED_kuning, LOW);
    digitalWrite(LED_merah, LOW);
    digitalWrite(LED_biru, HIGH);
    display.setCursor(0, 20);
    display.print("Suhu Terlalu Dingin");
  }

  display.display();
}