#include <Servo.h>
int servoPin=11;
Servo s1;
void setup() {
  s1.attach(servoPin);
  pinMode(12, INPUT);

}
void loop() {
  if(digitalRead(12) == HIGH) {
   s1.write(0);
   delay(1000);
  }
  else{
    s1.write(180);
    delay(1000);
  }
}