int potPin = A0;
int value;
int ledPins[] = {0, 1, 2, 3, 4, 5, 6, 7};

void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
  Serial.begin(9600);
  pinMode(potPin, INPUT);
}

void loop() {
  value = analogRead(potPin);
  value = map(value, 0, 1023, 0, 7);  // Corrected map function
  Serial.println(value);

  for (int i = 0; i < 8; i++) {
    digitalWrite(ledPins[i], i == value);
  }

  delay(100);
}