Arduino Weather Station With OLED Display

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

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
#define OLED_ADDRESS 0x3C

#define DHTPIN 2
#define DHTTYPE DHT22

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

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

  if (!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDRESS)) {
    Serial.println(F("OLED display not found. Check wiring or I2C address."));
    while (true);
  }

  display.clearDisplay();
  display.setTextColor(SSD1306_WHITE);
  display.setTextSize(1);
  display.setCursor(0, 0);
  display.println("WolfieWeb Weather");
  display.println("Starting sensor...");
  display.display();
  delay(2000);
}

void loop() {
  float humidity = dht.readHumidity();
  float tempC = dht.readTemperature();
  float tempF = dht.readTemperature(true);

  if (isnan(humidity) || isnan(tempC) || isnan(tempF)) {
    Serial.println(F("Failed to read from DHT22. Check VCC, DATA, GND, and pull-up resistor."));
    display.clearDisplay();
    display.setTextSize(1);
    display.setCursor(0, 0);
    display.println("Sensor Error");
    display.println("Check DHT22 wiring");
    display.display();
    delay(2000);
    return;
  }

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temp: "));
  Serial.print(tempC);
  Serial.print(F("C / "));
  Serial.print(tempF);
  Serial.println(F("F"));

  display.clearDisplay();
  display.setTextColor(SSD1306_WHITE);
  display.setTextSize(1);
  display.setCursor(0, 0);
  display.println("WolfieWeb Weather");
  display.drawLine(0, 12, 127, 12, SSD1306_WHITE);

  display.setTextSize(2);
  display.setCursor(0, 20);
  display.print(tempF, 1);
  display.println(" F");

  display.setTextSize(2);
  display.setCursor(0, 44);
  display.print(humidity, 1);
  display.println(" %");

  display.display();
  delay(2000);
}