char angka[10][7]={
  {1,1,1,1,1,1,0},	// angka 0
  {0,1,1,0,0,0,0},	// angka 1
  {1,1,0,1,1,0,1},	// angka 2
  {1,1,1,1,0,0,1},	// angka 3
  {0,1,1,0,0,1,1},	// angka 4
  {1,0,1,1,0,1,1},	// angka 5
  {1,0,1,1,1,1,1},	// angka 6
  {1,1,1,0,0,0,0},	// angka 7
  {1,1,1,1,1,1,1},	// angka 8
  {1,1,1,1,0,1,1}	// angka 9
};

char pin7[7]={2,3,4,5,6,7,8};

void tampil_angka (int nilai){
  for(int i=0;i<7;i++){
    digitalWrite(pin7[i],angka[nilai][i]);   
  }
}

void setup() {
  // put your setup code here, to run once:
  for(int i=0;i<7;i++){
    pinMode(pin7[i],OUTPUT);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  tampil_angka(1);
  delay(1000);
  tampil_angka(5);
  delay(1000);
  tampil_angka(1);
  delay(1000);
  tampil_angka(2);
  delay(1000);
  tampil_angka(2);
  delay(1000);
  tampil_angka(0);
  delay(1000);  
  tampil_angka(2);
  delay(1000);
  tampil_angka(2);
  delay(1000);
}