#define LED1 5
#define LED2 4
#define LED3 3
#define LED4 2

void setup() {
  // put your setup code here, to run once:
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  Serial.begin(9600);
}

unsigned int A;
byte Geser;

void LAMP(unsigned char LED)
{                            //ISI LED and ANGKA 1,2,3,4
  digitalWrite(LED1, LED&1); //0001 and 0001 TRUE/ HIGH
  digitalWrite(LED2, LED&2); //0010 and 0010 TRUE/ HIGH
  digitalWrite(LED3, LED&4); //0100 and 0100 TRUE/ HIGH
  digitalWrite(LED4, LED&8); //1000 and 1000 TRUE/ HIGH

  digitalWrite(LED4, LED&8); //1000 and 1000 TRUE/ HIGH
  digitalWrite(LED3, LED&4); //0100 and 0100 TRUE/ HIGH
  digitalWrite(LED2, LED&2); //0010 and 0010 TRUE/ HIGH
  digitalWrite(LED1, LED&1); //0001 and 0001 TRUE/ HIGH
}

void loop() {
  // put your main code here, to run repeatedly:
 
Geser=1; //biner 0001
 for(A=0; A<4; A++)
 {
  Serial.println(Geser);
  LAMP(Geser);
  Geser=Geser<<1; //mulai dari 0001, 0010, 0100, 1000
  delay(500);
 }

Geser=8; //biner 1000
 for(A=0; A<4; A++)
 {
  Serial.println(Geser);
  LAMP(Geser);
  Geser=Geser>>1; //mulai dari 1000, 0100, 0010, 0001 
  delay(500);
 }
}