สอบถามโค้ดหน่อยค่ะ

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include <TimeLib.h>

#include <WidgetRTC.h>

// You should get Auth Token in the Blynk App.

// Go to the Project Settings (nut icon).

char auth[] = "xxxxxxxxxxxxxxxxxxxxxxxxxx";

char ssid[] = "xxxxxxxxx";

char pass[] = "xxxxxxxxxxxxxx";

BlynkTimer timer;

WidgetRTC rtc;

int  Hours_up   = 0;

int  Minutes_up = 0;

int  Seconds_up = 0;

int  HighMillis = 0;

int  Rollover   = 0;

void uptime()

{ 

  if (millis()>=3000000000){ 

    HighMillis=1;

  }

  if (millis()<=100000&&HighMillis==1){

    Rollover++;

    HighMillis=0;

  }

  long secsUp = millis()/1000;

  Seconds_up = secsUp%60;

  Minutes_up = (secsUp/60)%60;

  Hours_up   = (secsUp/(60*60))%24;                   

}

// Digital clock display of the time

void clockDisplay()

{

  char upHours[16];

  String currentTime = String(hour()) + " : " + minute() + " : " + second();

  String currentDate = String(day()) + " / " + month() + " / " + year();

  Serial.print("Current time: ");

  Serial.print(currentTime);

  Serial.print(" ");

  Serial.print(currentDate);

  Serial.println();

  Blynk.virtualWrite(V1, currentTime);

  Blynk.virtualWrite(V2, currentDate);

  uptime();

  sprintf(upHours, "%02d:%02d:%02d", Hours_up, Minutes_up, Seconds_up);

  Blynk.virtualWrite(V3, upHours);

  Blynk.virtualWrite(V4, upHours);

}

void setup()

{

  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass);

  rtc.begin();

  timer.setInterval(1000L, clockDisplay);

}

void loop() 

  {

  if(digitalRead(D0)==LOW){

  (Blynk.virtualWrite(V5, 0));

  }else{

  (Blynk.virtualWrite(V5, 255));

  }

  if(digitalRead(D5)==LOW){

  (Blynk.virtualWrite(V6, 0));

  }else{

  (Blynk.virtualWrite(V6, 255));

  }

  Blynk.run();

  timer.run();

}

โดยจะเขียนเป็นการจับเวลาค่ะ

คือถ้า ไฟเปิด D0 ให้มีการจับเวลาใน V4 ค่ะ

ควรเขียนตรงไหนคะพี่ ขอคำแนะนำด้วยค่ะ