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

// OLED display TWI address
#define OLED_ADDR   0x3C
// OLED display width and height
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

// If your display has a reset pin, define it here
#define OLED_RESET_PIN -1 // replace -1 with the actual pin number if needed

// Define the display
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET_PIN);

void setup() {
  // Initialize the display
  if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.clearDisplay();

  // Draw a smiley face
  drawSmileyFace();
}

void loop() {
  // You can add more code here to change the display or add animations
}

void drawSmileyFace() {
  display.clearDisplay(); // Clear the display buffer

  // Draw the face
  display.fillCircle(64, 32, 31, WHITE);

  // Draw the eyes
  display.fillCircle(50, 24, 5, WHITE);
  display.fillCircle(78, 24, 5, WHITE);

  // Draw the mouth
  display.drawCircle(64, 32, 20, BLACK);
  display.drawCircle(64, 32, 21, BLACK);
  display.fillCircle(64, 46, 2, BLACK);

  display.display(); // Update the display with the drawn content
}