#include <Servo.h>

Servo myservo; // create servo object

// variable to hold servo angle
int angle = 0;

int pot = 0; // for potentiometer reading

void setup() {
  // attach the servo motor
  myservo.attach(6);
  Serial.begin(9600);
}

void loop() {
  // read the potentiometer
  pot = analogRead(A0);
  // pot will be value between 0-1023
  // servo accepts values between 0-180
  Serial.println(pot);
  angle = map(pot, 0, 1023, 0, 180);
  myservo.write(angle);

}