// Define the Arduino pins connected to the 7-segment display segments
const int segmentPins[8] = {2, 3, 4, 5, 6, 7, 8, 9};

// Define the digit patterns for the 7-segment display (common anode)
//      A  B  C  D  E  F  G  DP
const byte digitPatterns[10] = {
  0b11000000, // 0
  0b11111001, // 1
  0b10100100, // 2
  0b10110000, // 3
  0b10011001, // 4
  0b10010010, // 5
  0b10000010, // 6
  0b11111000, // 7
  0b10000000, // 8
  0b10010000  // 9
};

void setup() {
  // Set all segment pins as output
  for (int i = 0; i < 8; i++) {
    pinMode(segmentPins[i], OUTPUT);
    digitalWrite(segmentPins[i], HIGH); // Ensure all segments are off initially
  }
}

void loop() {
  // Display digits 0-9
  for (int digit = 0; digit < 10; digit++) {
    displayDigit(digit);
    delay(1000); // Wait for 1 second before displaying the next digit
  }
}

void displayDigit(int digit) {
  byte pattern = digitPatterns[digit];
  for (int i = 0; i < 8; i++) {
    digitalWrite(segmentPins[i], (pattern >> i) & 0x01 ? HIGH : LOW);
  }
}