#include <U8g2lib.h>
#include <Wire.h>


U8G2_SSD1306_128X64_NONAME_F_HW_I2C oled(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  oled.begin();
  oled.clearBuffer();
}

void loop() {
  // put your main code here, to run repeatedly:
oled.clearBuffer();
oled.drawCircle(64,31,20);
oled.sendBuffer();
delay(1000);
oled.clearBuffer();
oled.drawDisc(64,31,20);
oled.sendBuffer();
delay(1000);
}