#define LED_A  12 // connected to sevseg1:A
#define LED_B  14 // connected to sevseg1:B
#define LED_C  27 // connected to sevseg1:C
#define LED_D  26 // connected to sevseg1:D
#define LED_E  25 // connected to sevseg1:E
#define LED_F  33 // connected to sevseg1:F
#define LED_G  13 // connected to sevseg1:G


const int digitPatterns[10] = {
  0B1000000, // 0 
  0B1111001, // 1 
  0B0100100, // 2 
  0B0110000, // 3 
  0B0011001, // 4 
  0B0010010, // 5 
  0B0000010, // 6 
  0B1111000, // 7 
  0B0000000, // 8 
  0B0011000  // 9 
};

void setup() {
  pinMode(LED_A, OUTPUT);
  pinMode(LED_B, OUTPUT);
  pinMode(LED_C, OUTPUT);
  pinMode(LED_D, OUTPUT);
  pinMode(LED_E, OUTPUT);
  pinMode(LED_F, OUTPUT);
  pinMode(LED_G, OUTPUT);
  Serial.begin(115200);
}

void displayDigit(int digit) {
  // Turn off all segments
  digitalWrite(LED_A, LOW);
  digitalWrite(LED_B, LOW);
  digitalWrite(LED_C, LOW);
  digitalWrite(LED_D, LOW);
  digitalWrite(LED_E, LOW);
  digitalWrite(LED_F, LOW);
  digitalWrite(LED_G, LOW);

  // Set the segments according to the digit pattern
  int pattern = digitPatterns[digit];
  digitalWrite(LED_A, bitRead(pattern, 0));
  digitalWrite(LED_B, bitRead(pattern, 1));
  digitalWrite(LED_C, bitRead(pattern, 2));
  digitalWrite(LED_D, bitRead(pattern, 3));
  digitalWrite(LED_E, bitRead(pattern, 4));
  digitalWrite(LED_F, bitRead(pattern, 5));
  digitalWrite(LED_G, bitRead(pattern, 6));
}

void loop() {
  for (int digit = 0; digit <= 9; digit++) {
    displayDigit(digit);
    delay(1000);
  }
}