void setup() {
  // put your setup code here, to run once:
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
}

// a2 b3 c4 d5 e6 f7 g8

/* Digit table for the 7-segment display */
const uint8_t digitTable[] = {
  0b11000000,
  0b11111001,
  0b10100100,
  0b10110000,
  0b10011001,
  0b10010010,
  0b10000010,
  0b11111000,
  0b10000000,
  0b10010000,
  0b11111111,
};

void loop() {
  // put your main code here, to run repeatedly:
  // for (int i = 0; i <= 10; i++) {
  //   displayNumber(i);
  //   delay(1000);
  // }
  displayNumber(1);
}

void displayNumber(int num) {
  // Ensure the number is within the valid range (0-9)
    uint8_t segments = digitTable[num];

    // Display the number on the 7-segment display
    digitalWrite(2, !bitRead(segments, 0));
    digitalWrite(3, !bitRead(segments, 1));
    digitalWrite(4, !bitRead(segments, 2));
    digitalWrite(5, !bitRead(segments, 3));
    digitalWrite(6, !bitRead(segments, 4));
    digitalWrite(7, !bitRead(segments, 5));
    digitalWrite(8, !bitRead(segments, 6));
}