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

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

DHT dht(13, DHT22);
float temperature ;
float  humidity;
int counter;

// create an OLED display object connected to I2C
Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  Serial.begin(9600);

  // initialize OLED display with I2C address 0x3C
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }

  delay(2000);         // wait two seconds for initializing
                // display on OLED
}

void loop() {

  oled.clearDisplay(); // clear display
  oled.setTextSize(1); // set text size
  oled.setTextColor(WHITE); // set text color
  
  // Read temperature and humidity values
  float temperatureC = dht.readTemperature();
  float temperatureF = dht.readTemperature(true);
  float humidity = dht.readHumidity();

  // Print temperature in Celsius and Fahrenheit
  oled.setCursor(0, 0);
  oled.print("Temp: ");
  oled.print(temperatureC);
  oled.println(" C");
  oled.setCursor(0, 10);
  oled.print(temperatureF);
  oled.println(" F");

  // Print humidity
  oled.setCursor(0, 20);
  oled.print("Humidity: ");
  oled.print(humidity);
  oled.println("%");

  oled.display();
  counter++;
  delay(1000);
}