#define BUTTON_PIN 2 

int counter = 0;
unsigned long lastPressTime = 0;
bool buttonState = false;
bool lastButtonState;

byte sevenSegment[] = {
  0x3F,  // 0
  0x06,  // 1
  0x5B,  // 2
  0x4F,  // 3
  0x66,  // 4
  0x6D,  // 5
  0x7D,  // 6
  0x07,  // 7
  0x7F,  // 8
  0x6F,  // 9
  0x77,  // A
  0x7C,  // b
  0x58,  // C
  0b01011110,  // d
  0x79,  // E
  0x71   // F
};

int segmentPins[] = {3, 4, 5, 6, 7, 8, 9};

void setup() {
  pinMode(BUTTON_PIN, INPUT);
  for (int i = 0; i < 7; i++) {
    pinMode(segmentPins[i], OUTPUT);
  }
  displayNumber(counter);
}

void loop() {
  bool currentButtonState = digitalRead(BUTTON_PIN);

  if (currentButtonState != lastButtonState && currentButtonState == HIGH && buttonState == false) {
    lastPressTime = millis();
    counter++;
    if (counter > 15) {
      counter = 0;
    }
    displayNumber(counter); 
    buttonState = true;
  }

  if (currentButtonState == HIGH && buttonState == true) {
    if (millis() - lastPressTime >= 500) {
      counter++;
      if (counter > 15) {
        counter = 0;
      }
      displayNumber(counter);
      lastPressTime = millis();
    }
  }

  // Butondan el çekildiğinde
  if (currentButtonState == LOW && buttonState == true) {
    buttonState = false;
    counter++;
    if (counter > 15) {
      counter = 0;
    }
    displayNumber(counter);
  }

  lastButtonState = currentButtonState;
  delay(50);
}

void displayNumber(int num) {
  byte segments = sevenSegment[num];
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentPins[i], (segments & (1 << i)) ? HIGH : LOW);
  }
}