14_FND

const int fnd_data[7] = {2,3,4,5,6,7,8};
const unsigned int num[10][7] = {{1,1,1,1,1,1,0},
    {0,1,1,0,0,0,0},
    {1,1,0,1,1,0,1},
    {1,1,1,1,0,0,1},
    {0,1,1,0,0,1,1},
    {1,0,1,1,0,1,1},
    {1,0,1,1,1,1,1},
    {1,1,1,0,0,0,0},
    {1,1,1,1,1,1,1},
    {1,1,1,1,0,1,1}};


void displayinit(int *pin) {
   for (int i = 0; i<7; i++) {
    pinMode(*(pin+i),OUTPUT);
  }
}
void display_set(int *pin) {
  for (int i = 0; i<7; i++) {
    digitalWrite(pin[i],HIGH);
  }
}
void display_clear(int *pin) {
  for (int i = 0; i<7; i++) {
    digitalWrite(pin[i],LOW);
  }
}
void display_number(int n) {
  for (int i = 0; i<7; i++) {
    digitalWrite(fnd_data[i],num[n][i]);
  }
}

void setup() {
  displayinit(fnd_data);
  display_clear(fnd_data);
  Serial.begin(115200);

}
void loop() {
  if (Serial.available()) {
    char number = Serial.read();
    if (number >= '0' && number<= '9') {
      display_number(number-48);
    }
  }
}