#include <HCSR04.h>

HCSR04 hc(7, 6); //initialisation class HCSR04 (trig pin , echo pin)

void setup()
{
  Serial.begin(9600);
  pinMode(10, OUTPUT);
}



void loop() {// put your main code here, to run repeatedly:
/*
  float jarak;
  jarak = hc.dist();
  Serial.println("jarak benda dengan sensor:");
  Serial.println(hc.dist());
  delay(1000);
*/

int  jarak;
jarak = hc.dist();

  if(jarak <100);
  {
    Serial.println("BAHAYA BAHAYA BAHAYA");
    tone(10, 1000, 250);
  };

  if(jarak > 100)
  {
    Serial.println("jangan mendekat kawan");
    tone(10, 80, 100);
  };
  delay(500);







}