//7 Segment dengan common anoda
int led[]={0,1,2,3,4,5,6};
int angka0[]={1,0,0,0,0,0,0};//0
int angka1[]={1,1,1,1,0,0,1};//1
int angka2[]={0,1,0,0,1,0,0};//2
int angka3[]={0,1,1,0,0,0,0};//3
int angka4[]={0,0,1,1,0,0,1};//4
int angka5[]={0,0,1,0,0,1,0};//5
int angka6[]={0,0,0,0,0,1,0};//6
int angka7[]={1,1,1,1,0,0,0};//7
int angka8[]={0,0,0,0,0,0,0};//8
int angka9[]={0,0,1,0,0,0,0};//9
int i;
// String merah = 11;
// String kuning = 12;
// String hijau  = 13;

void setup() 
{
  pinMode(11,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(13,OUTPUT);
 for (i=0;i<7;i++)
 {
 pinMode(led[i],OUTPUT);
 }
}
byte angka = 0;
void loop() {
/* menampilkan angka ke seven segmen */
 switch(angka){
 case 0:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka9[i]); 
 }
 digitalWrite(11, LOW);
 digitalWrite(12, HIGH);
 digitalWrite(13, HIGH);

 break;
 case 1:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka8[i]); 
 }
 break;
 case 2:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka7[i]); 
 }
 break;
 case 3:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka6[i]); 
 }
 break;
 case 4:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka5[i]); 
 }
 
 break;
 case 5:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka4[i]); 
 }
 break;
 case 6:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka3[i]); 
 }
 break;
 case 7:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka2[i]); 
 }
 break;
 case 8:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka1[i]); 
 }
 break;
 case 9:
 for(i=0;i<7;i++)
 {
 digitalWrite(led[i],angka0[i]); 
 }
 digitalWrite(11, HIGH);
 digitalWrite(12, HIGH);
 digitalWrite(13, LOW);
 delay(10000);
 break;
 }
 /* menghitung dari 0 - 9 */
 angka++;
 delay(500);
if (angka > 9)
 {
 angka = 0;
 }
 }