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

Adafruit_SSD1306 display(128, 64, &Wire, -1);



void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
  display.clearDisplay();
}

void loop() {
      display.drawPixel(64,32,WHITE);
      display.drawCircle(64,32,1,WHITE);
      display.drawCircle(64,32,2,WHITE);
      display.drawCircle(64,32,3,WHITE);
      display.display();
}