#include <Servo.h>
Servo puerta;
//Marina Declarta 

void setup() {
  // put your setup code here, to run once:
 pinMode(2, INPUT);
 puerta.attach(3);
 Serial.begin(9600);
 puerta.write(180);
}

void loop() {
  // put your main code here, to run repeatedly:
 int a = digitalRead(2);
 Serial.println(a);

 if(a == 1){
  puerta.write(0);
   }else{
   delay(2000);
   puerta.write(180);
 }
}