#include <Servo.h> 

Servo myservo;  // create servo object to control a servo 

int potPin = 2;  // analog pin used to connect the potentiometer
int ledPin = 13;   // select the pin for the LED
int val;    // variable to read the value from the analog pin 

void setup() 
{ 
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  pinMode(ledPin, OUTPUT);  // declare the ledPin as an OUTPUT
} 

void loop() 
{ 
  val = analogRead(potPin);            // reads the value of the potentiometer (value between 0 and 1023)
  //motor control
  val = map(val, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180) 
  myservo.write(val);                  // sets the servo position according to the scaled value
  
  //led control
  digitalWrite(ledPin, HIGH);  // turn the ledPin on
  
  delay(val);                           // waits for the servo to get there
  
  digitalWrite(ledPin, LOW);   // turn the ledPin off
  
  //delay(val);                  // stop the program for some time
} 


/*
int potPin = 2;    // select the input pin for the potentiometer

int val = 0;       // variable to store the value coming from the sensor

void setup() {
  
}

void loop() {
  val = analogRead(potPin);    // read the value from the sensor
  
  delay(val);                  // stop the program for some time
  
  
}
*/