#include <HCSR04.h>

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

void setup()
{
  Serial.begin(9600);

  pinMode(10, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
}



void loop() {// put your main code here, to run repeatedly:

int jarak;
jarak = hc.dist();

float nilai_BBB ;
nilai_BBB = analogRead(A1);
Serial.println(nilai_BBB);

if(jarak < 100)
{
  Serial.println("awas ada bahaya!!!");
  tone(10, nilai_BBB,250);
  digitalWrite(8, HIGH);
  digitalWrite(9, LOW);
}

if (jarak >= 100)
{
  Serial.println("hati - hati gaesss");
  digitalWrite(8, LOW);
  digitalWrite(9, HIGH);
}

delay(500);
}