const int ledPin =  LED_BUILTIN;// the number of the LED pin
int ledState = LOW;             // ledState used to set the LED
unsigned long previousMillis = 0;        // will store last time LED was updated
const long interval = 250;           // interval at which to blink (milliseconds)

//      g f e d c b a
//zero  1 0 0 0 0 0 0 = 40h
//one = 1 1 1 1 0 0 1 = 79h
//two = 0 1 0 0 1 0 0 = 24h
//three 0 1 1 0 0 0 0 = 30h
int decimal[10] = {0x18, 0x0, 0x78, 0x2, 0x12, 0x19, 0x30, 0x24, 0x79, 0x40 };
int c = 0;

void setup() {
  // put your setup code here, to run once:
  for(int x=4;x<=10;x++) pinMode(x, OUTPUT);
  for(int x=4;x<=10;x++) digitalWrite(x, 1); //off all
}

void loop() {
  // put your main code here, to run repeatedly:
  counting();
}

void counting() {
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {
    // save the last time you blinked the LED
    previousMillis = currentMillis;

    // if the LED is off turn it on and vice-versa:
    if (ledState == LOW) {
      ledState = HIGH;
      SSDone(decimal[c]);
      c++;
      if(c>=10) c=0; //back to 0
    } else {
      ledState = LOW;
    }

    // set the LED with the ledState of the variable:
    digitalWrite(ledPin, ledState);
  }  
}

void SSDone(int theNum)
{
  digitalWrite(4, theNum & 1);
  digitalWrite(5, theNum & 2);
  digitalWrite(6, theNum & 4);
  digitalWrite(7, theNum & 8);
  digitalWrite(8, theNum & 16);
  digitalWrite(9, theNum & 32);
  digitalWrite(10, theNum & 64);
}