#define data_pin 3
#define clock_pin 5
#define latch_pin 4
//int digits[10] = {252, 96, 218, 242, 102, 182, 190, 224, 254, 246};
int digits[10] = {252, 254, 0, 242, 102, 182, 190, 224, 254, 246};
int digpin[4] = {12, 11, 10, 9};

void setup() {
  for (int i = 0; i < 4; i++) { 
    pinMode(digpin[i], OUTPUT);
  digitalWrite(digpin[i],HIGH);
  }
  pinMode(data_pin, OUTPUT);
  pinMode(clock_pin, OUTPUT);
  pinMode(latch_pin, OUTPUT);
  digitalWrite(latch_pin, LOW);
  Serial.begin(9600);
}

void loop() {

  String num = String(1234); 
  for (int i = 0; i < 4; i++) {
    shiftOut(data_pin, clock_pin, LSBFIRST, digits[num[i]-48]);
    digitalWrite(latch_pin, HIGH);
    digitalWrite(latch_pin, LOW);
    digitalWrite(digpin[i],HIGH);
    delay(10);
    digitalWrite(digpin[i],LOW);
  }
 }