#include <Servo.h>
#define echoPin 2
#define trigPin 3
#define button 4
Servo Servogwe;

void setup() {
  // put your setup code here, to run once:

pinMode(button, INPUT);
Servogwe.attach(6);
 pinMode(echoPin, INPUT); 
  pinMode(trigPin, OUTPUT);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
long jarak, jarakM, durasiPantulan;


  digitalWrite(trigPin, LOW); 
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH); 
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW); 
  durasiPantulan = pulseIn(echoPin, HIGH);
  jarak = durasiPantulan * 0.034 / 2; 
  jarakM = jarak / 100; 

if(digitalRead(button)==HIGH )


   if (jarak < 100 ){
     Servogwe.write(0);
delay(500);
   }else if (jarak > 100){
 Servogwe.write(90);
delay(500);
   }
  


}