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

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET    -1
#define SDA_PIN       26
#define SCL_PIN       25

Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Serial.begin(9600);
  Wire.begin(SDA_PIN, SCL_PIN);

  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("Failed to start SSD1306 OLED"));
    while (1);
  }

  oled.clearDisplay();
  oled.display();
}

void loop() {
  // Gambar mata terbuka
  drawEyes(true);
  delay(1500);

  // Gambar mata tertutup (kedip)
  drawEyes(false);
  delay(200);

  // Buka mata lagi
  drawEyes(true);
  delay(2000);
}

void drawEyes(bool open) {
  oled.clearDisplay();

  if (open) {
    // Mata kiri
    oled.drawCircle(40, 32, 12, WHITE);     // garis luar mata
    oled.fillCircle(40, 32, 4, WHITE);      // bola mata (pupil)

    // Mata kanan
    oled.drawCircle(88, 32, 12, WHITE);
    oled.fillCircle(88, 32, 4, WHITE);
  } else {
    // Kedip (mata tertutup = garis)
    oled.drawLine(28, 32, 52, 32, WHITE);   // mata kiri tertutup
    oled.drawLine(76, 32, 100, 32, WHITE);  // mata kanan tertutup
  }

  oled.display();
}