int DS_pin = 4;
int STCP_pin =3;
int SHCP_pin = 2 ;
int MPH = 85;


int dec_digits
  [10] {1,79,18,6,76,36,32,15,0,4};

 void displayMPH() {
    int j= MPH / 10;
    int i = MPH % 10;
    digitalWrite(STCP_pin,LOW);
    shiftOut(DS_pin, SHCP_pin, LSBFIRST,dec_digits[i]);
    shiftOut(DS_pin, SHCP_pin, LSBFIRST,dec_digits[j]);
    digitalWrite(STCP_pin,
    HIGH);
    delay(300);
}

void setup() {

 


  pinMode(DS_pin,
  OUTPUT);
  pinMode(STCP_pin, OUTPUT);
  pinMode(SHCP_pin, OUTPUT);
}


void
  loop() { 
displayMPH();


}