#include <Servo.h>
Servo myservo;  
int potpin = A0;  
int val;    
int ledPin[] = {13,10,7,4,2};
int lampu = 5;

void setup() {
  myservo.attach(3);
  Serial.begin(115200);
  for (int lamp = 0; lamp < lampu; lamp++) {
    pinMode(ledPin[lamp], OUTPUT);
  }
}

void loop() {
  val = analogRead(potpin);            
  val = map(val, 0, 1023, 0, 180);     
  myservo.write(val);                  
  delay(15);       
  int sensor = analogRead(potpin);
  int led = map(sensor, 0, 1023, 0, 6);
  
  for (int lamp = 0; lamp < lampu; lamp++) {
    if (lamp < led) {
      digitalWrite(ledPin[lamp], HIGH);
    }else {
      digitalWrite(ledPin[lamp], LOW);
    }
  }
  }