byte ptPin=A0
int potValue,ledCount;


void setup() {
 for (byte x=2;x<=11;x=x+1)
{
  pinMode(x,OUTPUT);
}
}

void loop() {
 potValue=analogRead(potPin);
 ledcount= map(potValue 0,1023,2,12)

 for (int x=1;x<=11;x=x+1)
  digitalWrite(X,LOW)