// Define the pins for the segments
const int segmentPins[] = {2, 3, 4, 5, 6, 7, 8};

// Digit to segment mapping (Common Cathode)
const byte digitToSegment[10][7] = {
  {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, LOW}, // 0
  {LOW, HIGH, HIGH, LOW, LOW, LOW, LOW},     // 1
  {HIGH, HIGH, LOW, HIGH, HIGH, LOW, HIGH},  // 2
  {HIGH, HIGH, HIGH, HIGH, LOW, LOW, HIGH},  // 3
  {LOW, HIGH, HIGH, LOW, LOW, HIGH, HIGH},   // 4
  {HIGH, LOW, HIGH, HIGH, LOW, HIGH, HIGH},  // 5
  {HIGH, LOW, HIGH, HIGH, HIGH, HIGH, HIGH}, // 6
  {HIGH, HIGH, HIGH, LOW, LOW, LOW, LOW},    // 7
  {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH},// 8
  {HIGH, HIGH, HIGH, HIGH, LOW, HIGH, HIGH}  // 9
};

void setup() {
  // Set all segment pins as output
  for (int i = 0; i < 7; i++) {
    pinMode(segmentPins[i], OUTPUT);
  }
}

void displayDigit(int digit) {
  // Get the segment configuration for the digit
  const byte* segmentConfig = digitToSegment[digit];
  
  // Set the segments
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentPins[i], segmentConfig[i]);
  }
}

void loop() {
  // Cycle through the digits 0-9
  for (int digit = 0; digit < 10; digit++) {
    displayDigit(digit);
    delay(1000); // Display each digit for 1 second
  }
}