unsigned int counter=1;
int direction =1;
unsigned long changeTime=0;
int timeDelay = 200;
int value=0;
/*
void setup() {
  DDRD=0xFF; //255 ali 0b11111111
  //Serial.begin(115200)
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int x =0; x<8;x++){
    PORTD = counter;
    delay(500);
    counter*=2;  // counter=counter*2
    //Serial.println(counter);
    if(counter>128) counter=128;
  }
  for(int x=0; x < 8; x++){
    PORTD=counter;
    delay(200);
    counter=counter/2;
    if(counter<1) counter=1;
  }
}
*/
/*
void setup() {
  DDRD=0xFF; //255 ali 0b11111111
  DDRB &= 0b11111110; //PB0 je vhod
  //Serial.begin(115200);
  changeTime=millis();
}

void loop() {
value=PINB & 0b00000001; //0x01

  if((millis()-changeTime)>timeDelay){
    if(value==0){
      if (counter>128 || counter<1) counter=1;
      counter*=2;
      PORTD=counter;
    }
    if (value==1){
      if (counter<=0) counter = 128;
      PORTD=counter;
      counter/=2;
    }
    changeTime=millis();

  }
    
}
*/
int ledPin[]={1,2,4,8,16,32,64,128,0,255,0xF0,0,0xF0,0};
void setup() {
  DDRD=0xFF; //255 ali 0b11111111
}

void loop() {
  for(int x =0;x<(sizeof(ledPin)/sizeof(ledPin[0]));x++){
    PORTD=ledPin[x];
    delay(300);
  }
}