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

#define SCREEN_WIDTH 128  
#define SCREEN_HEIGHT 64   

#define OLED_RESET    -1   

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
 
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); 
  }

  display.clearDisplay();  
  display.setTextSize(2); 
  display.setTextColor(SSD1306_WHITE);  
  display.setCursor(0,0);  
  display.print(F("Vitaj"));  
  display.display();  
}