Arduino Pc Turn off and on

//links with Blynk Libaries for NodeMCU
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

//Authentication
char auth[] = "TOKEN";                              //Your blynk token
char ssid[] = "SSID";                               //Your wifi SSID
char pass[] = "PASS";                               //Your wifi password

//On startup
void setup()
{
  Serial.begin(9600);                               //starting the Debug com (Open it by clicking on Tools -> Serial Monitor)
  Blynk.begin(auth, ssid, pass);                    //Authentication with Blynk
  pinMode (D1, OUTPUT);                             //Enables Pin D1
  digitalWrite(D1, !digitalRead(D1));               //Sets state of Pin D1 to the opposite on start *Remove if Relay is on, on start*
  }


//Turn on script
BLYNK_WRITE(V1) {                                   //Start of Script
   if (param.asInt()==1){                           //Checks if Virtual port V1 is active, and if it is, it will run the script
    digitalWrite(D1, LOW);                          //Sets the state of port D1 to LOW
    delay(300);                                     //Delay for 3 miliseconds
    digitalWrite(D1, HIGH);                         //Sets the state of port D1 to HIGH
    Blynk.virtualWrite(V1, LOW);                    //Sets Virtual port V1 to be disabled
    }                                               //end of "if true" script
}                                                   //End of script

//Force turn off script
BLYNK_WRITE(V2) {                                   //Start of Script
   if (param.asInt()==1){                           //Checks if Virtual port V2 is active, and if it is, it will run the script
    digitalWrite(D1, LOW);                          //Sets the state of port D1 to LOW
    delay(6000);                                     //Delay for 3 miliseconds
    digitalWrite(D1, HIGH);                         //Sets the state of port D1 to HIGH
    Blynk.virtualWrite(V2, LOW);                    //Sets Virtual port V2 to be disabled
    }                                               //end of "if true" script
}                                                   //End of script

//When running
void loop()
{
  Blynk.run();                                      //Start blynk connection
}