#include <Servo.h>

Servo s;
const int t = 0;
const int e = 1;

long jarak;
long waktu;

void setup() {
  s.attach(11);
  pinMode(t, OUTPUT);
  pinMode(e, INPUT);

}

void loop() {
  digitalWrite(t, LOW);
  delayMicroseconds(2);
  digitalWrite(t, HIGH);
  delayMicroseconds(10);
  digitalWrite(t, LOW);

  jarak = pulseIn(e, HIGH);

  waktu = jarak * 0.034 / 2;

  if(waktu <= 10) {
    s.write(90);
  } else {
    s.write(45);
  }
delay(20);
}