#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "Ultrasonic.h"

#define BLYNK_TEMPLATE_ID "TMPL6swrYLn9m"
#define BLYNK_TEMPLATE_NAME "utp"
#define BLYNK_AUTH_TOKEN "wnkeFVx-qkHgKkFsYpNi6ra0F03gGZUq"

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

#define trigPin 12
#define echoPin 13
#define buzzerPin 15

BlynkTimer timer;

void sendSensor()
{
  long duration, jarak;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  jarak = duration * 0.034 / 2;
  Blynk.virtualWrite(V1, jarak);
  if (jarak < 20)
  {
    Blynk.logEvent("notify", "ADA HAMA!!");
    tone(buzzerPin, 2000, 1000);
  }
  else
  {
    noTone(buzzerPin);
  }
}

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
  timer.setInterval(1000L, sendSensor);
}

void loop()
{
  Blynk.run();
  timer.run();
}