#include <Ultrasonic.h>
Ultrasonic ultrasonic(2,A5);
int jarak;
#define led 3

void setup() {
  // put your setup code here, to run once
  Serial.begin(9600);
  pinMode(led, OUTPUT);
}

void loop() {
  jarak = ultrasonic.read();

  Serial.print("jarak pada cm");
  Serial.println(jarak);

   if (jarak > 50) {
    digitalWrite(led,1);
   }else{
    digitalWrite(led,0);
   }
   }
  // put your main code here, to run repeatedly: