Need help migrating

Need Help With My Project
1

HI,
i read that , i have a new code from my old friend but its not working properly ( switch automatically goes to on ) and my old friend is no more , so please help me .

#define BLYNK_DEVICE_NAME "MINING ON HOME"
#define BLYNK_AUTH_TOKEN "YS1rht2PTNeQ-bk88WTo07wkcOVYehuI"

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "xxxx";
char pass[] = "xxxx";

bool fetch_blynk_state = true;  //true or false

//#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// define the GPIO connected with Relays and switches
#define RelayPin1 23  //D23
#define RelayPin2 22  //D22
#define RelayPin3 21  //D21
#define RelayPin4 19  //D19
#define RelayPin5 18  //D18
#define RelayPin6 5   //D5
#define RelayPin7 25  //D25
#define RelayPin8 26  //D26

#define SwitchPin1 13  //D13
#define SwitchPin2 12  //D12
#define SwitchPin3 14  //D14
#define SwitchPin4 27  //D27
#define SwitchPin5 33  //D33
#define SwitchPin6 32  //D32
#define SwitchPin7 15  //D15
#define SwitchPin8 4   //D4

#define wifiLed   2   //D2

//Change the virtual pins according the rooms
#define VPIN_BUTTON_1    V1 
#define VPIN_BUTTON_2    V2
#define VPIN_BUTTON_3    V3 
#define VPIN_BUTTON_4    V4
#define VPIN_BUTTON_5    V5 
#define VPIN_BUTTON_6    V6
#define VPIN_BUTTON_7    V7 
#define VPIN_BUTTON_8    V8

#define VPIN_BUTTON_C    V9

// Relay State
bool toggleState_1 = LOW; //Define integer to remember the toggle state for relay 1
bool toggleState_2 = LOW; //Define integer to remember the toggle state for relay 2
bool toggleState_3 = LOW; //Define integer to remember the toggle state for relay 3
bool toggleState_4 = LOW; //Define integer to remember the toggle state for relay 4
bool toggleState_5 = LOW; //Define integer to remember the toggle state for relay 5
bool toggleState_6 = LOW; //Define integer to remember the toggle state for relay 6
bool toggleState_7 = LOW; //Define integer to remember the toggle state for relay 7
bool toggleState_8 = LOW; //Define integer to remember the toggle state for relay 8

// Switch State
bool SwitchState_1 = LOW;
bool SwitchState_2 = LOW;
bool SwitchState_3 = LOW;
bool SwitchState_4 = LOW;
bool SwitchState_5 = LOW;
bool SwitchState_6 = LOW;
bool SwitchState_7 = LOW;
bool SwitchState_8 = LOW;

int wifiFlag = 0;

char auth[] = BLYNK_AUTH_TOKEN;

BlynkTimer timer;

// When App button is pushed - switch the state

BLYNK_WRITE(VPIN_BUTTON_1) {
  toggleState_1 = param.asInt();
  digitalWrite(RelayPin1, !toggleState_1);
}

BLYNK_WRITE(VPIN_BUTTON_2) {
  toggleState_2 = param.asInt();
  digitalWrite(RelayPin2, !toggleState_2);
}

BLYNK_WRITE(VPIN_BUTTON_3) {
  toggleState_3 = param.asInt();
  digitalWrite(RelayPin3, !toggleState_3);
}

BLYNK_WRITE(VPIN_BUTTON_4) {
  toggleState_4 = param.asInt();
  digitalWrite(RelayPin4, !toggleState_4);
}

BLYNK_WRITE(VPIN_BUTTON_5) {
  toggleState_5 = param.asInt();
  digitalWrite(RelayPin5, !toggleState_5);
}

BLYNK_WRITE(VPIN_BUTTON_6) {
  toggleState_6 = param.asInt();
  digitalWrite(RelayPin6, !toggleState_6);
}

BLYNK_WRITE(VPIN_BUTTON_7) {
  toggleState_7 = param.asInt();
  digitalWrite(RelayPin7, !toggleState_7);
}

BLYNK_WRITE(VPIN_BUTTON_8) {
  toggleState_8 = param.asInt();
  digitalWrite(RelayPin8, !toggleState_8);
}

void checkBlynkStatus() { // called every 2 seconds by SimpleTimer

  bool isconnected = Blynk.connected();
  if (isconnected == false) {
    wifiFlag = 1;
    Serial.println("Blynk Not Connected");
    digitalWrite(wifiLed, LOW);
  }
  if (isconnected == true) {
    wifiFlag = 0;
    if (!fetch_blynk_state){
    Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
    Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
    Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
    Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
    Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
    Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
    Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
    Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
    }
    digitalWrite(wifiLed, HIGH);
    Serial.println("Blynk Connected");
  }
}

BLYNK_CONNECTED() {
  // Request the latest state from the server
  if (fetch_blynk_state){
    Blynk.syncVirtual(VPIN_BUTTON_1);
    Blynk.syncVirtual(VPIN_BUTTON_2);
    Blynk.syncVirtual(VPIN_BUTTON_3);
    Blynk.syncVirtual(VPIN_BUTTON_4);
    Blynk.syncVirtual(VPIN_BUTTON_5);
    Blynk.syncVirtual(VPIN_BUTTON_6);
    Blynk.syncVirtual(VPIN_BUTTON_7);
    Blynk.syncVirtual(VPIN_BUTTON_8);
  }
}

void manual_control()
{
  if (digitalRead(SwitchPin1) == LOW && SwitchState_1 == LOW) {
    digitalWrite(RelayPin1, LOW);
    toggleState_1 = 1;
    SwitchState_1 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
    Serial.println("Switch-1 on");
  }
  if (digitalRead(SwitchPin1) == HIGH && SwitchState_1 == HIGH) {
    digitalWrite(RelayPin1, HIGH);
    toggleState_1 = 0;
    SwitchState_1 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
    Serial.println("Switch-1 off");
  }
  if (digitalRead(SwitchPin2) == LOW && SwitchState_2 == LOW) {
    digitalWrite(RelayPin2, LOW);
    toggleState_2 = 1;
    SwitchState_2 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
    Serial.println("Switch-2 on");
  }
  if (digitalRead(SwitchPin2) == HIGH && SwitchState_2 == HIGH) {
    digitalWrite(RelayPin2, HIGH);
    toggleState_2 = 0;
    SwitchState_2 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
    Serial.println("Switch-2 off");
  }
  if (digitalRead(SwitchPin3) == LOW && SwitchState_3 == LOW) {
    digitalWrite(RelayPin3, LOW);
    toggleState_3 = 1;
    SwitchState_3 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
    Serial.println("Switch-3 on");
  }
  if (digitalRead(SwitchPin3) == HIGH && SwitchState_3 == HIGH) {
    digitalWrite(RelayPin3, HIGH);
    toggleState_3 = 0;
    SwitchState_3 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
    Serial.println("Switch-3 off");
  }
  if (digitalRead(SwitchPin4) == LOW && SwitchState_4 == LOW) {
    digitalWrite(RelayPin4, LOW);
    toggleState_4 = 1;
    SwitchState_4 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
    Serial.println("Switch-4 on");
  }
  if (digitalRead(SwitchPin4) == HIGH && SwitchState_4 == HIGH) {
    digitalWrite(RelayPin4, HIGH);
    toggleState_4 = 0;
    SwitchState_4 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
    Serial.println("Switch-4 off");
  }
  if (digitalRead(SwitchPin5) == LOW && SwitchState_5 == LOW) {
    digitalWrite(RelayPin5, LOW);
    toggleState_5 = 1;
    SwitchState_5 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
    Serial.println("Switch-5 on");
  }
  if (digitalRead(SwitchPin5) == HIGH && SwitchState_5 == HIGH) {
    digitalWrite(RelayPin5, HIGH);
    toggleState_5 = 0;
    SwitchState_5 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
    Serial.println("Switch-5 off");
  }
  if (digitalRead(SwitchPin6) == LOW && SwitchState_6 == LOW) {
    digitalWrite(RelayPin6, LOW);
    toggleState_6 = 1;
    SwitchState_6 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
    Serial.println("Switch-6 on");
  }
  if (digitalRead(SwitchPin6) == HIGH && SwitchState_6 == HIGH) {
    digitalWrite(RelayPin6, HIGH);
    toggleState_6 = 0;
    SwitchState_6 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
    Serial.println("Switch-6 off");
  }
  if (digitalRead(SwitchPin7) == LOW && SwitchState_7 == LOW) {
    digitalWrite(RelayPin7, LOW);
    toggleState_7 = 1;
    SwitchState_7 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
    Serial.println("Switch-7 on");
  }
  if (digitalRead(SwitchPin7) == HIGH && SwitchState_7 == HIGH) {
    digitalWrite(RelayPin7, HIGH);
    toggleState_7 = 0;
    SwitchState_7 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
    Serial.println("Switch-7 off");
  }
  if (digitalRead(SwitchPin8) == LOW && SwitchState_8 == LOW) {
    digitalWrite(RelayPin8, LOW);
    toggleState_8 = 1;
    SwitchState_8 = HIGH;
    Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
    Serial.println("Switch-8 on");
  }
  if (digitalRead(SwitchPin8) == HIGH && SwitchState_8 == HIGH) {
    digitalWrite(RelayPin8, HIGH);
    toggleState_8 = 0;
    SwitchState_8 = LOW;
    Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
    Serial.println("Switch-8 off");
  }
}  

BLYNK_WRITE(VPIN_BUTTON_C) {
  all_SwitchOff();
}


void all_SwitchOff(){
  toggleState_1 = 0; digitalWrite(RelayPin1, HIGH); Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1); delay(100);
  toggleState_2 = 0; digitalWrite(RelayPin2, HIGH); Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2); delay(100);
  toggleState_3 = 0; digitalWrite(RelayPin3, HIGH); Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3); delay(100);
  toggleState_5 = 0; digitalWrite(RelayPin5, HIGH); Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5); delay(100);
  toggleState_6 = 0; digitalWrite(RelayPin6, HIGH); Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6); delay(100);
  toggleState_7 = 0; digitalWrite(RelayPin7, HIGH); Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7); delay(100);
  toggleState_8 = 0; digitalWrite(RelayPin8, HIGH); Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8); delay(100);
}

void setup()
{
  Serial.begin(9600);

  pinMode(RelayPin1, OUTPUT);
  pinMode(RelayPin2, OUTPUT);
  pinMode(RelayPin3, OUTPUT);
  pinMode(RelayPin4, OUTPUT);
  pinMode(RelayPin5, OUTPUT);
  pinMode(RelayPin6, OUTPUT);
  pinMode(RelayPin7, OUTPUT);
  pinMode(RelayPin8, OUTPUT);

  pinMode(wifiLed, OUTPUT);

  pinMode(SwitchPin1, INPUT_PULLUP);
  pinMode(SwitchPin2, INPUT_PULLUP);
  pinMode(SwitchPin3, INPUT_PULLUP);
  pinMode(SwitchPin4, INPUT_PULLUP);
  pinMode(SwitchPin5, INPUT_PULLUP);
  pinMode(SwitchPin6, INPUT_PULLUP);
  pinMode(SwitchPin7, INPUT_PULLUP);
  pinMode(SwitchPin8, INPUT_PULLUP);

  //During Starting all Relays should TURN OFF
  digitalWrite(RelayPin1, !toggleState_1);
  digitalWrite(RelayPin2, !toggleState_2);
  digitalWrite(RelayPin3, !toggleState_3);
  digitalWrite(RelayPin4, !toggleState_4);
  digitalWrite(RelayPin5, !toggleState_5);
  digitalWrite(RelayPin6, !toggleState_6);
  digitalWrite(RelayPin7, !toggleState_7);
  digitalWrite(RelayPin8, !toggleState_8);

  digitalWrite(wifiLed, LOW);

  //Blynk.begin(auth, ssid, pass);
  WiFi.begin(ssid, pass);
  timer.setInterval(2000L, checkBlynkStatus); // check if Blynk server is connected every 2 seconds
  Blynk.config(auth);
  delay(1000);
  
  if (!fetch_blynk_state){
    Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
    Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
    Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
    Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
    Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
    Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
    Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
    Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
  }
}

void loop()
{ 
  manual_control();
  Blynk.run();
  timer.run();
}```
2

@Kamalesh I’ve moved your post to a new topic, as an announcement topic about Blynk Legacy being shut-down isn’t the appropriate place to discuss the details of your particular issue.

This statement obviously means something to you. but you’ll need to elaborate if you want help to resolve your issue.

Pete.

3

yes i want to resolve that issue ,

4

If you explain in detail exactly what the issue is then you might get some help resolving it.
If you don’t then we cant really help because we can’t understand the problem.

Pete.

5

ok i am explain,

1- when my router is restart at that time esp32 not reconnect automatically, i do manually it off and then
on after that it will connect .
2- some of switch goes to automatically on and off .

6

What do you see in your serial monitor when this happens?

If you expect someone on this forum to understand what this means in enough detail to allow them to help you fix the issue for you then you’re going to be very disappointed.

Pete.

7

https://docs.blynk.io/en/legacy-platform/legacy-articles/keep-your-void-loop-clean

8

how to clean it , please guide me

9

The ideal blynk void loop should look like this

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

and like this

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

When you use a timer.

10

ok, try this one

11

thanks john ,
its work , any other error in this code ?

12

It looks fine.

13

ok , one more thing , can i program wifi led flash

14

hi either i clear the then manual switch not working

15

What do mean exactly ?
Can you explain please ?

Post the updated sketch please.

16

below pate it

#define BLYNK_DEVICE_NAME "MINING ON HOME"
#define BLYNK_AUTH_TOKEN "YS1rht2PTNeQ-bk88WTo07wkcOVYehuI"

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "ROUTER 1";
char pass[] = "9238855k@";

bool fetch_blynk_state = true;  //true or false

//#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// define the GPIO connected with Relays and switches
#define RelayPin1 23  //D23
#define RelayPin2 22  //D22
#define RelayPin3 21  //D21
#define RelayPin4 19  //D19
#define RelayPin5 18  //D18
#define RelayPin6 5   //D5
#define RelayPin7 25  //D25
#define RelayPin8 26  //D26

#define SwitchPin1 13  //D13
#define SwitchPin2 12  //D12
#define SwitchPin3 14  //D14
#define SwitchPin4 27  //D27
#define SwitchPin5 33  //D33
#define SwitchPin6 32  //D32
#define SwitchPin7 15  //D15
#define SwitchPin8 4   //D4

#define wifiLed   2   //D2

//Change the virtual pins according the rooms
#define VPIN_BUTTON_1    V1 
#define VPIN_BUTTON_2    V2
#define VPIN_BUTTON_3    V3 
#define VPIN_BUTTON_4    V4
#define VPIN_BUTTON_5    V5 
#define VPIN_BUTTON_6    V6
#define VPIN_BUTTON_7    V7 
#define VPIN_BUTTON_8    V8
#define VPIN_BUTTON_C    V9

// Relay State
bool toggleState_1 = LOW; //Define integer to remember the toggle state for relay 1
bool toggleState_2 = LOW; //Define integer to remember the toggle state for relay 2
bool toggleState_3 = LOW; //Define integer to remember the toggle state for relay 3
bool toggleState_4 = LOW; //Define integer to remember the toggle state for relay 4
bool toggleState_5 = LOW; //Define integer to remember the toggle state for relay 5
bool toggleState_6 = LOW; //Define integer to remember the toggle state for relay 6
bool toggleState_7 = LOW; //Define integer to remember the toggle state for relay 7
bool toggleState_8 = LOW; //Define integer to remember the toggle state for relay 8

// Switch State
bool SwitchState_1 = LOW;
bool SwitchState_2 = LOW;
bool SwitchState_3 = LOW;
bool SwitchState_4 = LOW;
bool SwitchState_5 = LOW;
bool SwitchState_6 = LOW;
bool SwitchState_7 = LOW;
bool SwitchState_8 = LOW;

int wifiFlag = 0;

char auth[] = BLYNK_AUTH_TOKEN;

BlynkTimer timer;

// When App button is pushed - switch the state

BLYNK_WRITE(VPIN_BUTTON_1) {
 toggleState_1 = param.asInt();
 digitalWrite(RelayPin1, !toggleState_1);
}

BLYNK_WRITE(VPIN_BUTTON_2) {
 toggleState_2 = param.asInt();
 digitalWrite(RelayPin2, !toggleState_2);
}

BLYNK_WRITE(VPIN_BUTTON_3) {
 toggleState_3 = param.asInt();
 digitalWrite(RelayPin3, !toggleState_3);
}

BLYNK_WRITE(VPIN_BUTTON_4) {
 toggleState_4 = param.asInt();
 digitalWrite(RelayPin4, !toggleState_4);
}

BLYNK_WRITE(VPIN_BUTTON_5) {
 toggleState_5 = param.asInt();
 digitalWrite(RelayPin5, !toggleState_5);
}

BLYNK_WRITE(VPIN_BUTTON_6) {
 toggleState_6 = param.asInt();
 digitalWrite(RelayPin6, !toggleState_6);
}

BLYNK_WRITE(VPIN_BUTTON_7) {
 toggleState_7 = param.asInt();
 digitalWrite(RelayPin7, !toggleState_7);
}

BLYNK_WRITE(VPIN_BUTTON_8) {
 toggleState_8 = param.asInt();
 digitalWrite(RelayPin8, !toggleState_8);
}

void checkBlynkStatus() { // called every 2 seconds by SimpleTimer

 bool isconnected = Blynk.connected();
 if (isconnected == false) {
   wifiFlag = 1;
   Serial.println("Blynk Not Connected");
   digitalWrite(wifiLed, LOW);
 }
 if (isconnected == true) {
   wifiFlag = 0;
   if (!fetch_blynk_state){
   Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
   Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
   Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
   Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
   Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
   Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
   Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
   Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
   }
   digitalWrite(wifiLed, HIGH);
   Serial.println("Blynk Connected");
 }
}

BLYNK_CONNECTED() {
 // Request the latest state from the server
 if (fetch_blynk_state){
   Blynk.syncVirtual(VPIN_BUTTON_1);
   Blynk.syncVirtual(VPIN_BUTTON_2);
   Blynk.syncVirtual(VPIN_BUTTON_3);
   Blynk.syncVirtual(VPIN_BUTTON_4);
   Blynk.syncVirtual(VPIN_BUTTON_5);
   Blynk.syncVirtual(VPIN_BUTTON_6);
   Blynk.syncVirtual(VPIN_BUTTON_7);
   Blynk.syncVirtual(VPIN_BUTTON_8);
 }
}

void manual_control()
{
 if (digitalRead(SwitchPin1) == LOW && SwitchState_1 == LOW) {
   digitalWrite(RelayPin1, LOW);
   toggleState_1 = 1;
   SwitchState_1 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
   Serial.println("Switch-1 on");
 }
 if (digitalRead(SwitchPin1) == HIGH && SwitchState_1 == HIGH) {
   digitalWrite(RelayPin1, HIGH);
   toggleState_1 = 0;
   SwitchState_1 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
   Serial.println("Switch-1 off");
 }
 if (digitalRead(SwitchPin2) == LOW && SwitchState_2 == LOW) {
   digitalWrite(RelayPin2, LOW);
   toggleState_2 = 1;
   SwitchState_2 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
   Serial.println("Switch-2 on");
 }
 if (digitalRead(SwitchPin2) == HIGH && SwitchState_2 == HIGH) {
   digitalWrite(RelayPin2, HIGH);
   toggleState_2 = 0;
   SwitchState_2 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
   Serial.println("Switch-2 off");
 }
 if (digitalRead(SwitchPin3) == LOW && SwitchState_3 == LOW) {
   digitalWrite(RelayPin3, LOW);
   toggleState_3 = 1;
   SwitchState_3 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
   Serial.println("Switch-3 on");
 }
 if (digitalRead(SwitchPin3) == HIGH && SwitchState_3 == HIGH) {
   digitalWrite(RelayPin3, HIGH);
   toggleState_3 = 0;
   SwitchState_3 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
   Serial.println("Switch-3 off");
 }
 if (digitalRead(SwitchPin4) == LOW && SwitchState_4 == LOW) {
   digitalWrite(RelayPin4, LOW);
   toggleState_4 = 1;
   SwitchState_4 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
   Serial.println("Switch-4 on");
 }
 if (digitalRead(SwitchPin4) == HIGH && SwitchState_4 == HIGH) {
   digitalWrite(RelayPin4, HIGH);
   toggleState_4 = 0;
   SwitchState_4 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
   Serial.println("Switch-4 off");
 }
 if (digitalRead(SwitchPin5) == LOW && SwitchState_5 == LOW) {
   digitalWrite(RelayPin5, LOW);
   toggleState_5 = 1;
   SwitchState_5 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
   Serial.println("Switch-5 on");
 }
 if (digitalRead(SwitchPin5) == HIGH && SwitchState_5 == HIGH) {
   digitalWrite(RelayPin5, HIGH);
   toggleState_5 = 0;
   SwitchState_5 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
   Serial.println("Switch-5 off");
 }
 if (digitalRead(SwitchPin6) == LOW && SwitchState_6 == LOW) {
   digitalWrite(RelayPin6, LOW);
   toggleState_6 = 1;
   SwitchState_6 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
   Serial.println("Switch-6 on");
 }
 if (digitalRead(SwitchPin6) == HIGH && SwitchState_6 == HIGH) {
   digitalWrite(RelayPin6, HIGH);
   toggleState_6 = 0;
   SwitchState_6 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
   Serial.println("Switch-6 off");
 }
 if (digitalRead(SwitchPin7) == LOW && SwitchState_7 == LOW) {
   digitalWrite(RelayPin7, LOW);
   toggleState_7 = 1;
   SwitchState_7 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
   Serial.println("Switch-7 on");
 }
 if (digitalRead(SwitchPin7) == HIGH && SwitchState_7 == HIGH) {
   digitalWrite(RelayPin7, HIGH);
   toggleState_7 = 0;
   SwitchState_7 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
   Serial.println("Switch-7 off");
 }
 if (digitalRead(SwitchPin8) == LOW && SwitchState_8 == LOW) {
   digitalWrite(RelayPin8, LOW);
   toggleState_8 = 1;
   SwitchState_8 = HIGH;
   Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
   Serial.println("Switch-8 on");
 }
 if (digitalRead(SwitchPin8) == HIGH && SwitchState_8 == HIGH) {
   digitalWrite(RelayPin8, HIGH);
   toggleState_8 = 0;
   SwitchState_8 = LOW;
   Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
   Serial.println("Switch-8 off");
 }
}  

BLYNK_WRITE(VPIN_BUTTON_C) {
 all_SwitchOff();
}


void all_SwitchOff(){
 toggleState_1 = 0; digitalWrite(RelayPin1, HIGH); Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1); delay(100);
 toggleState_2 = 0; digitalWrite(RelayPin2, HIGH); Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2); delay(100);
 toggleState_3 = 0; digitalWrite(RelayPin3, HIGH); Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3); delay(100);
 toggleState_5 = 0; digitalWrite(RelayPin5, HIGH); Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5); delay(100);
 toggleState_6 = 0; digitalWrite(RelayPin6, HIGH); Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6); delay(100);
 toggleState_7 = 0; digitalWrite(RelayPin7, HIGH); Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7); delay(100);
 toggleState_8 = 0; digitalWrite(RelayPin8, HIGH); Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8); delay(100);
}

void setup()
{
 Serial.begin(9600);

 pinMode(RelayPin1, OUTPUT);
 pinMode(RelayPin2, OUTPUT);
 pinMode(RelayPin3, OUTPUT);
 pinMode(RelayPin4, OUTPUT);
 pinMode(RelayPin5, OUTPUT);
 pinMode(RelayPin6, OUTPUT);
 pinMode(RelayPin7, OUTPUT);
 pinMode(RelayPin8, OUTPUT);

 pinMode(wifiLed, OUTPUT);

 pinMode(SwitchPin1, INPUT_PULLUP);
 pinMode(SwitchPin2, INPUT_PULLUP);
 pinMode(SwitchPin3, INPUT_PULLUP);
 pinMode(SwitchPin4, INPUT_PULLUP);
 pinMode(SwitchPin5, INPUT_PULLUP);
 pinMode(SwitchPin6, INPUT_PULLUP);
 pinMode(SwitchPin7, INPUT_PULLUP);
 pinMode(SwitchPin8, INPUT_PULLUP);

 //During Starting all Relays should TURN OFF
 digitalWrite(RelayPin1, !toggleState_1);
 digitalWrite(RelayPin2, !toggleState_2);
 digitalWrite(RelayPin3, !toggleState_3);
 digitalWrite(RelayPin4, !toggleState_4);
 digitalWrite(RelayPin5, !toggleState_5);
 digitalWrite(RelayPin6, !toggleState_6);
 digitalWrite(RelayPin7, !toggleState_7);
 digitalWrite(RelayPin8, !toggleState_8);

 digitalWrite(wifiLed, LOW);

 //Blynk.begin(auth, ssid, pass);
 WiFi.begin(ssid, pass);
 timer.setInterval(2000L, checkBlynkStatus); // check if Blynk server is connected every 2 seconds
 Blynk.config(auth);
 delay(1000);
 
 if (!fetch_blynk_state){
   Blynk.virtualWrite(VPIN_BUTTON_1, toggleState_1);
   Blynk.virtualWrite(VPIN_BUTTON_2, toggleState_2);
   Blynk.virtualWrite(VPIN_BUTTON_3, toggleState_3);
   Blynk.virtualWrite(VPIN_BUTTON_4, toggleState_4);
   Blynk.virtualWrite(VPIN_BUTTON_5, toggleState_5);
   Blynk.virtualWrite(VPIN_BUTTON_6, toggleState_6);
   Blynk.virtualWrite(VPIN_BUTTON_7, toggleState_7);
   Blynk.virtualWrite(VPIN_BUTTON_8, toggleState_8);
 }
}

void loop()
{
 Blynk.run();
 timer.run();
}
17

add this line

timer.setInterval(1000L, manual_control);

To your void setup.

18

You’ve removed the call to manual_control From your void loop, but you haven’t set-up a timer to call it instead.

Pete.

19

can you please edit it for me

20

can you please add it for me and upload the code