#include <Servo.h>

Servo servo;
int dialpin = A5;
int dialval = 0;

void setup() {
  // put your setup code here, to run once:
  servo.attach(13);
 
}

void loop() {
  // put your main code here, to run repeatedly:
  dialval = analogRead(dialpin);
  dialval = map(dialval, 0, 1023,0,180);
  servo.write(dialval);

  delay(30);
}