#include <Servo.h>
const int pb = 5;
int LED = 4;
Servo servo;

void setup() {

pinMode(pb, INPUT); 
pinMode(LED, OUTPUT);
servo.attach(9);

}

void loop() {
  int pb0n = digitalRead(pb);
  
  if (pb0n == HIGH){
  digitalWrite(LED, HIGH);
  servo.write(180);
  delay(200);
  
  digitalWrite(LED, LOW);
  servo.write(0);
  delay(1000);
  
  }

}