const int segmentPins[7] = {2, 3, 4, 5, 6, 7, 8}; //A-G pin mapping

const int digits[10][7] = {
  {1,1,1,1,1,1,0},  // 0
  {0,1,1,0,0,0,0},  // 1
  {1,1,0,1,1,0,1},  // 2
  {1,1,1,1,0,0,1},  // 3
  {0,1,1,0,0,1,1},  // 4
  {1,0,1,1,0,1,1},  // 5
  {1,0,1,1,1,1,1},  // 6
  {1,1,1,0,0,0,0},  // 7
  {1,1,1,1,1,1,1},  // 8
  {1,1,1,1,0,1,1}   // 9
};

void setup() {
  for (int i = 0; i < 7; i++) {
    pinMode(segmentPins[i], OUTPUT);
  }
}

void loop() {
  for (int i = 0; i < 10; i++) { //Count 0 to 9
    for (int j = 0; j < 7; j++) { 
      digitalWrite(segmentPins[j], digits[i][j]); //Activate segments
    }
    delay(1000); //delay 1 second
  }
  
}