#include <Servo.h> //includes servo library of instructions

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

int val,newVal; // declare variable to read the value from the analog pin

void setup() {

myservo.attach(9); // attaches the servo on pin 9 to the servo object

}

void loop() {

val = analogRead(A0); // reads the value of the potentiometer (value between 0 and 1023)

newVal = map(val, 0, 1023, 0, 180); // scale it to use it with the servo (value between 0 and 180)

myservo.write(newVal); // sets the servo position according to the scaled value

delay(15); // waits for the servo to get there

}