#include <U8g2lib.h>
 
U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void setup(){
 u8g2.begin();

}

void loop() {
  u8g2.clearBuffer();
  u8g2.drawCircle( 60, 32, 32,U8G2_DRAW_ALL);
  u8g2.sendBuffer();
  }