#define DATAPIN 2
#define CLOCKPIN 3
#define LATCHPIN 4
#define BUTTONPIN 12
#define CLEAR 10

//functies
void toonNummer(byte i);

//variabelen
int i = 0;
byte getallen[] = {
  0b01101111,
  0b00000011, //hier kan bv ook het getal 3 worden gezet
  0b01110110,
  0b01010111,
  0b00011011,
  0b01011101,
  0b01111101,
  0b00000111,
  0b01111111,
  0b01011111,
  0b00000000
};


void setup()
{
  // Set the three SPI pins to be outputs:

  pinMode(DATAPIN, OUTPUT);
  pinMode(CLOCKPIN, OUTPUT);
  pinMode(LATCHPIN, OUTPUT);
  pinMode(BUTTONPIN, INPUT);
}



void loop() {
  if (digitalRead(BUTTONPIN) == HIGH) {
    toonNummer(i);
    i++;
  } else {
    toonNummer(CLEAR);
  }


}

void toonNummer(byte i) {
  digitalWrite(LATCHPIN, LOW);
  shiftOut(DATAPIN, CLOCKPIN, LSBFIRST, getallen[i % 11]);
  digitalWrite(LATCHPIN, HIGH);
  delay(500);
}