#include <Servo.h>Servo myservo; // create servo object to control a servoint potpin = 0; // analog pin used to connect the potentiometerint val; // variable to read the value from the analog pinvoid setup(){ myservo.attach(9); // attaches the servo on pin 9 to the servo object}void loop() { val = analogRead(potpin); // reads the value of the potentiometer val = map(val, 0, 1023, 0, 180); // 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 delay(15); // waits for the servo to get there }