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


void setup() {
#define OLED_WIDTH 128 // OLED display width,  in pixels
#define OLED_HEIGHT 64 // O
Adafruit_SSD1306 oled(OLED_WIDTH, OLED_HEIGHT, &Wire, -1);
// initialize OLED display with I2C address 0x3C
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }else{
  delay(2000);         // wait two seconds for initializing
  oled.clearDisplay(); // clear display

  oled.setTextSize(1);         // set text size
  oled.setTextColor(WHITE);    // set text color
  oled.setCursor(0, 10);       // set position to display
  oled.println("esp32io.com"); // set text
  oled.display();
  }

  pinMode(13, OUTPUT);
  Serial.begin(115200);
  Serial.println("Hello Arduino Nano ESP32!");
}

void loop() {
  digitalWrite(13, HIGH);
  delay(500);
  digitalWrite(, LOW);
  delay(500);
}