SSD1306 Display SPI Connection or I2C (According to resistors)
Based on previous answer. 


Move the resistor from position R3 to R1. 
Connect R8. 


Result:



Example of usage:



Code (sketch):

#include &lt;Arduino.h&gt;
#include &lt;U8x8lib.h&gt;     //Using u8g2 library

U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8(  /* clock=*/ 12,   /* data=*/ 11, /* reset=*/ U8X8_PIN_NONE);   // OLEDs without Reset of the Display

void setup(void)
{
  u8x8.begin();
  u8x8.setPowerSave(0);

  u8x8.setFont(u8x8_font_pxplusibmcgathin_f);
  u8x8.drawString(0,0,"Hello World 209!");
  u8x8.drawString(0,3,"1234567890123456");
  u8x8.drawString(0,7,"Hello World 209!");
}

void loop(void)
{
}