#include <Servo.h>

Servo myservo;

const int buttonPin = 8;
int buttonState = 0;

void setup() {
  // put your setup code here, to run once:
pinMode(buttonPin, INPUT);
myservo.attach(5);

}

void loop() {
 
buttonState = digitalRead(buttonPin);
 if (buttonState == LOW) {
    
    myservo.write(0);
  } 
 
  else {
    
    myservo.write(180);

}
}