#include<Servo.h>
Servo myservo;
int potpin=A0;
int val;
void setup() 
{
  // put your setup code here, to run once:
myservo.attach(9);
}

void loop() {
  // put your main code here, to run repeatedly:
val=analogRead(potpin);
val=map(val,0,1023,0,360);
myservo.write(val);
delay(100);
}