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

#define DHTPIN 2        // Pin for the DHT sensor
#define DHTTYPE DHT22   // Define sensor type (DHT11 or DHT22)
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
#define SCREEN_ADDRESS 0x3C

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;);
  }
  dht.begin();
  display.clearDisplay();
  display.display();
}

void loop() {
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  // Check if any reads failed and exit early
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);

  display.setCursor(0, 0);
  display.print(F("Temp: "));
  display.print(temperature);
  display.print(F(" C"));

  display.setCursor(0, 20);
  display.print(F("Humidity: "));
  display.print(humidity);
  display.print(F(" %"));

  display.display();
  delay(2000);  // Wait a few seconds before reading again
}