In my blynk app button are automatic goes to on and off

Need Help With My Project
1

Dear team,
help me with this topic , when i use this code , at that time my blynk 2.0 app’s some button goes to automatically off and on ,

• Hardware model esp32 + communication type. wifi
• Smartphone OS ( Android) + version - latest
• Blynk Library version - latest

#define BLYNK_DEVICE_NAME "xxxxx"
#define BLYNK_AUTH_TOKEN "xxxxx"

// 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

Your code would be much easier to follow if you added some comments that described the purpose of each group of variables, and each block odf code.

You have a variable called fetch_blynk_state which you describe as “truie or false”, but you don’t give any clue about its intended role within the sketch…

This variable is tested several times…

but its state is never updated from it’s initial value of true

What is the intended purpose of this variable, and why aren’t you using it in a sensible way?

Pete.

3

can you please edit my sketch

4

Does that mean that it isn’t actually your sketch, but one that’s been written by someone else?

Pete.

5

yes

6

yes one of the youtuber make this for me

7

I’d suggest that you go back to this YouTuber and explain the issue you are having, and also point-out that the fetch_blynk_state variable is never set to false at any point in the sketch.

Pete.