#include <Servo.h>

Servo myservo;  // Create servo object
int potPin = A0; // Analog pin connected to the potentiometer
int val; // Variable to store the potentiometer value

void setup() {
  myservo.attach(9);  // Attach servo to pin 9
}

void loop() {
  val = analogRead(potPin);  // Read the potentiometer value
  val = map(val, 0, 1023, 0, 180);  // Map the value to the servo angle range
  myservo.write(val);  // Set the servo position
  delay(15);  // Wait for the servo to reach the position
}