byte segTR=6,buton1=4,buton2=3, pinler[]= 
{10,11,12,9}
byte segVeri[10][4]={{0,0,0,0}, 
        {0,0,0,1}, 
        {0,0,1,0},
        {0,0,1,1}, 
        {0,1,0,0}, 
        {0,1,0,1},
        {0,1,1,0},
        {0,1,1,1}, 
        {1,0,0,0},
        {1,0,0,1}}; 
        
void setup(){ 
 for(byte i=0; i<=3 ;++) 
  pinMode(pinler[i],OUTPUT);
 pinMode(segTR,OUTPUT); 
 pinMode(buton1,INPUT);
 pinMode(buton2,INPUT);
}

voidloop(){ 
  digitalWrite(segTR,0); 
  for(byte rakam=0;rakam<=9;rakam++){ 
   for(byte i=0; i<=3; i++){
    for(byte i=0; i<=3; i++) 
     digitalWrite (pinler[i],segVer[rakam][i]);
  delay(500); 
  } 
 digitalWrite(segTR,1);
 delay(1000);
}