int pin[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
int count=0;
//COMMON CATODHE
/*
int angka[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
};
*/
//COMMON ANODE
int angka[10][7] = {
  { 0, 0, 0, 0, 0, 0, 1 },  //0
  { 1, 0, 0, 1, 1, 1, 1 },  //1
  { 0, 0, 1, 0, 0, 1, 0 },  //2
  { 0, 0, 0, 0, 1, 1, 0 },  //3
  { 1, 0, 0, 1, 1, 0, 0 },  //4
  { 0, 1, 0, 0, 1, 0, 0 },  //5
  { 0, 1, 0, 0, 0, 0, 0 },  //6
  { 0, 0, 0, 1, 1, 1, 1 },  //7
  { 0, 0, 0, 0, 0, 0, 0 },  //8
  { 0, 0, 0, 0, 1, 0, 0 }   //9
};


void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(pin[i], OUTPUT);
  }
  for (int i = 8; i < 11; i++) {
    pinMode(pin[i], INPUT);
  }
  Serial.begin(9600);
}

void loop() {
  if(digitalRead(10)==1&&count<9){
    count++;
    tone(9, 2400);
    while (digitalRead(10) == 1) {}
    noTone(9);
  }
  if(digitalRead(11)==1&&count>0){
    count--;
    tone(9, 2400);
    while (digitalRead(11) == 1) {}
    noTone(9);
  }
  if(digitalRead(12)==1){
    count=0;
    tone(9, 2400);
    while (digitalRead(12) == 1) {}
    noTone(9);
  }
  for (int j = 0; j < 7; j++) {
      digitalWrite(pin[j], angka[count][j]);
    }
    Serial.println(count);
}