#include <Servo.h>  // 서보 라이브러리 추가

Servo myServo;
const int potPin = A0;
const int servoPin = 9;

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

void loop() {
    int potValue = analogRead(potPin);
    int angle = map(potValue, 0, 1023, 0, 180);
    myServo.write(angle);
    delay(15);
}