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

#include "DHT.h"

#define DHTPIN 2    

#define DHTTYPE DHT22   
DHT dht(DHTPIN, DHTTYPE);
const int LEDPANAS = 5;              
const int LEDSEDANG = 6;               
const int LEDDINGIN = 7;
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
int buzzerPin = 12;

void setup() {
  Serial.begin(9600);
  Serial.println(F("DHTxx test!"));
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Don't proceed, loop forever
  }
  display.clearDisplay();

  dht.begin();

  pinMode(LEDPANAS, OUTPUT);            // Change to output the blue pin.
  pinMode(LEDSEDANG, OUTPUT);          // Change to output the yellow pin.
  pinMode(LEDDINGIN, OUTPUT);  
 

  digitalWrite(LEDPANAS,LOW);           // Turn off LED.
  digitalWrite(LEDSEDANG,LOW);         // Turn off LED.
  digitalWrite(LEDDINGIN, LOW);

  pinMode(buzzerPin, OUTPUT);
 
}

void loop() {
  
  delay(2000);

  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);

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

  float hif = dht.computeHeatIndex(f, h);
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F  Heat index: "));
  Serial.print(hic);
  Serial.print(F("°C "));
  Serial.print(hif);
  Serial.println(F("°F"));
  


  if(t>35){                           // See if the temperature is bigger than 22C.
  digitalWrite(LEDPANAS,HIGH);           // Turn off LED.
  digitalWrite(LEDSEDANG,LOW);         // Turn off LED.
  digitalWrite(LEDDINGIN, LOW);
  Serial.println(F("SUHU PANAS"));
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setTextSize(3);
  display.setCursor(5, 5);
  display.print("SUHU");
  display.setCursor(5, 32);
  display.print("PANAS");
  display.display();
  tone(buzzerPin, 31);

  }
if(t>29 && t<35){                           // See if the temperature is bigger than 22C.
  digitalWrite(LEDPANAS,LOW);           // Turn off LED.
  digitalWrite(LEDSEDANG,HIGH);         // Turn off LED.
  digitalWrite(LEDDINGIN, LOW);
  Serial.println(F("SUHU CUKUP"));
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setTextSize(3);
  display.setCursor(5, 5);
  display.print("SUHU");
  display.setCursor(5, 32);
  display.print("CUKUP");
  display.display();
  noTone(buzzerPin);

  }
  else if (t<29){                           
  digitalWrite(LEDPANAS,LOW);           
  digitalWrite(LEDSEDANG,LOW);         
  digitalWrite(LEDDINGIN, HIGH);
  Serial.println(F("SUHU DINGIN"));
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setTextSize(3);
  display.setCursor(5, 5);
  display.print("SUHU");
  display.setCursor(5, 32);
  display.print("DINGIN");
  display.display();
  noTone(buzzerPin);

  }
}