#include <Servo.h>

Servo servo;

const int potentiometerPin = A0;
const int servoPin = 8;

int potentiometerValue = 0;

void setup() {
  servo.attach(servoPin);
}

void loop() {
  potentiometerValue = analogRead(potentiometerPin);
  int refeshValue = map(potentiometerValue, 0, 1023, 0, 180);

  servo.write(refeshValue);

  delay(10);
}