#define BLYNK_TEMPLATE_ID           "TMPL6XE2lpqJl"
#define BLYNK_TEMPLATE_NAME         "Quickstart Template"
#define BLYNK_AUTH_TOKEN            "pj8WC0KaH-5HgwIJnHO0rDeMf3zg0UYg"


#define BLYNK_PRINT Serial


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

int led = 5;
int trig = 2;
int echo = 4;


char ssid[] = "Mekub";
char pass[] = "Mr.JayJay ok";
char auth[] = "pj8WC0KaH-5HgwIJnHO0rDeMf3zg0UYg";
#define LINE_TOKEN  "4NbZ2b69GfynIeTpz9qKcJn1yyU4d9riS3F49G7xCku"

BlynkTimer timer;

BLYNK_WRITE(V1)
{
  int value = param.asInt();

    Blynk.virtualWrite(V1, value);
}

BLYNK_CONNECTED()
{
  Blynk.setProperty(V3, "offImageUrl", "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations.png");
  Blynk.setProperty(V3, "onImageUrl",  "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations_pressed.png");
  Blynk.setProperty(V3, "url", "https://docs.blynk.io/en/getting-started/what-do-i-need-to-blynk/how-quickstart-device-was-made");
}

void myTimerEvent()
{
  Blynk.virtualWrite(V2, millis() / 1000);
}

void setup()
{
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  Serial.begin(115200);

  Serial.println(LINE.getVersion());

  WiFi.begin(ssid, pass);
  Serial.printf("WiFi connecting to %s\n",  ssid);
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(400);
  }
  Serial.printf("\nWiFi connected\nIP : ");
  Serial.println(WiFi.localIP());

  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, myTimerEvent);
}

void loop()
{
  digitalWrite(trig, LOW);
  delay(10);
  digitalWrite(trig, HIGH);
  delay(10);
  digitalWrite(trig, LOW);
  unsigned int PulseWidth = pulseIn(echo,HIGH);
  unsigned int distance = PulseWidth * 0.0173681;
  Serial.print("Distance is ");
  Serial.print(distance);
  Serial.println(" cm.");
  delay(100);
  if (distance<=5){
    digitalWrite(led,HIGH);
    String message = String("");
    message += ": ";
    message += distance;
    message += " cm.";
    LINE.notify(message);
    delay(2500);
  }
  else{
    digitalWrite(led,LOW);
    delay(100);
  }
  Blynk.virtualWrite(V4,distance);
  Blynk.run();
  timer.run();
}