int pot=A0;
int potdeger;
int i;

void setup() {
for(i=2;i<7;i++)
{
  pinMode(i,OUTPUT);
}
Serial.begin(9600);
}

void loop() {
potdeger=analogRead(pot);
potdeger=map(potdeger,0,1023,0,5);
    
if(potdeger==0)
{
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
}
if(potdeger==1)
{
  digitalWrite(2,HIGH);
  digitalWrite(3,LOW);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
}
if(potdeger==2)
{
  digitalWrite(2,LOW);
  digitalWrite(3,HIGH);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
 }
if(potdeger==3)
{
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(4,HIGH);
  digitalWrite(5,LOW);
}
if(potdeger==4)
{
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(4,LOW);
  digitalWrite(5,HIGH);
}
Serial.println(potdeger);
}