// Define the pins for each segment of the 7-segment display
const int segmentPins[7] = {2, 3, 4, 5, 6, 7, 8};

// Define the segment mapping for each digit (0-9)
const byte segmentMap[10] = {
  0b0111111, // 0
  0b0000110, // 1
  0b1011011, // 2
  0b1001111, // 3
  0b1100110, // 4
  0b1101101, // 5
  0b1111101, // 6
  0b0000111, // 7
  0b1111111, // 8
  0b1101111  // 9
};

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

void loop() {
  // Count from 0 to 9 and display each digit
  for (int digit = 0; digit <= 9; digit++) {
    displayDigit(digit);
    delay(1000); // Wait for 1 second before displaying the next digit
  }
}

// Function to display a digit on the 7-segment display
void displayDigit(int digit) {
  byte segmentValue = segmentMap[digit];
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentPins[i], (segmentValue >> i) & 1);
  }
}