int jarak; //variable jarak 
int mode; //variable mode



#define trigerPin 12
#define echoPin 13
#define ledKuning 25
#define ledPin 14
#define buzzer 32
#define speakerPin 15
#define pitch 262
#define CM_TO_INCH 0.393701

long duration;
float distance;
float distanceInch;

#define BLYNK_TEMPLATE_ID "TMPLxMRNDSnr"
#define BLYNK_DEVICE_NAME "OKTA DAN SALSABILA"
#define BLYNK_AUTH_TOKEN "F11httU7208wcRR4zEt3XOhHYFZo09-z"
#define BLYNK_PRINT Serial


#define BLYNK_PRINT Serial


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

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

WiFiClient alfa;
#include <Blynk.h>

BlynkTimer timer;


void myTimerEvent()
{
  Blynk.virtualWrite(V0, jarak);

  digitalWrite(trigerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigerPin, LOW);

  //membuat durasi
  duration = pulseIn(echoPin, HIGH);

  //mengkalkulasi jarak
  distance = (duration/2) * 0.0343;

  distanceInch = distance * CM_TO_INCH;

  if(distance<10){
    digitalWrite(ledKuning, LOW);
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzer, LOW);
    delay(500);

    digitalWrite(ledKuning, LOW);
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, LOW);
    delay(100);
  }
  else{
    digitalWrite(ledKuning, LOW);
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, LOW);
  }

 if(distance>20){
    digitalWrite(ledKuning, HIGH);
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, HIGH);
    delay(500);

    digitalWrite(ledKuning, LOW);
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, LOW);
    delay(100);
  }
  else{
    digitalWrite(ledPin, HIGH);
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, LOW);

  //scan WiFi
  Serial.println("Scan WiFi...");
  int networks = WiFi.scanNetworks();
  if(networks == 0){
    Serial.println("No WiFi Networks!");
  }
  else{
    Serial.print(networks);
    Serial.println("Networks Found!");
    for(int i = 0; i < networks; i++)
      Serial.println(WiFi.SSID());
      delay(10);
  }

  //menyambungkan ke wifi
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED){
    delay(100);
    Serial.println(".");
  }
  Serial.println("WiFi Connected!");
  Serial.println(WiFi.localIP());

  BlynkWiFi
  }
}

 
void setup()
{
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);
  Blynk.virtualWrite(V0, jarak);
  //setup untuk sensor
  Serial.begin(115200);
  pinMode(trigerPin, OUTPUT);
  pinMode(echoPin, INPUT);

//setup untuk led
  pinMode(ledKuning, OUTPUT);

  //setup untuk led
  pinMode(ledPin, OUTPUT);

  // setup untuk buzzer
  pinMode(buzzer, OUTPUT);

  //setup untuk speaker
  pinMode(speakerPin, OUTPUT);
}


void loop()
{
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
}