ESP32-S WiFi Bluetooth Development Board

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

#define OLED_SDA 4
#define OLED_SCL 15
#define OLED_RST 16

Adafruit_SSD1306 display(128, 64, &Wire, OLED_RST);

const char* ssid = "DEIN_WLAN";
const char* pass = "DEIN_PASSWORT";

void setup() {
  Serial.begin(115200);
  Wire.begin(OLED_SDA, OLED_SCL);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.setTextColor(SSD1306_WHITE);
  display.setTextSize(1);
  display.println("Verbinde WLAN...");
  display.display();

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  display.clearDisplay();
  display.setCursor(0, 0);
  display.println("ESP32 online");
  display.println(WiFi.localIP());
  display.display();
}

void loop() {}