#include <Arduino.h>
#include <U8g2lib.h>
 
#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);
 
void setup(void) {
  u8g2.begin();
}
 
void loop(void) {
  u8g2.clearBuffer();                   // clear the internal memory
  u8g2.setFont(u8g2_font_ncenB08_tr);   // choose a suitable font
  u8g2.drawStr(0,10,"Hello Wrold!");    // write something to the internal memory
  u8g2.drawStr(0,30,"Hello Werold!"); 
  u8g2.drawStr(0,50,"Hello Wrrrold!"); 
  u8g2.sendBuffer();                    // transfer internal memory to the display
  delay(1000);  
}