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

#define DHTPIN 2     
#define DHTTYPE DHT22  

Adafruit_SSD1306 display(-1);

DHT dht(DHTPIN, DHTTYPE);

void setup()   
{ 

	Serial.begin(9600);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
	pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  
	dht.begin();



	// initialize with the I2C addr 0x3C
	display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  

	// Clear the buffer.
	display.clearDisplay();

}

void loop() {

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

 if (isnan(h) || isnan(t)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }
  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.println(F("°C "));

  if(t < 29) {
   
	 digitalWrite(4, LOW);
	 digitalWrite(5, LOW);
	 digitalWrite(6, HIGH);
			
	// Changing Font Size
	display.setTextColor(WHITE);
	display.setCursor(0,0);
	display.setTextSize(2);
	display.println("SUHU RENDAH");
	display.display();
	delay(2000);
	display.clearDisplay();
  }

  else if (t >=29 && t <=35) {
   noTone(3);
	 digitalWrite(4, LOW);
	 digitalWrite(5, HIGH);
	 digitalWrite(6, LOW);
			
	// Changing Font Size
	display.setTextColor(WHITE);
	display.setCursor(0,0);
	display.setTextSize(2);
	display.println("SUHU CUKUP");
	display.display();
	delay(2000);
	display.clearDisplay();

  }
  else if (t > 35) {
    tone(3, 100);
		digitalWrite(4, HIGH);
		digitalWrite(5, LOW);
		digitalWrite(6, LOW);
			
	// Changing Font Size
	display.setTextColor(WHITE);
	display.setCursor(0,0);
	display.setTextSize(2);
	display.println("SUHU PANAS");
	display.display();
	delay(2000);
	display.clearDisplay();
  }

}