The physical button without wifi does not work

Issues and Errors
21

ok thanks

22

sir how to update physical relay status to blynk app, when wifi connected.

23 
#include "FastLED.h"
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#define LED_PIN 6
#define NUM_LEDS 33 // Number of LEDs connected.
#define BRIGHTNESS 64 // Default LED brightness.
#define LED_TYPE WS2812B
#define COLOR_ORDER GBR
CRGB leds[NUM_LEDS];


char auth[] = "";
char ssid[] = "";
char pass[] = "";

char server[] = "blynk-cloud.com"; 
int port = 8080;

int ReCnctFlag; 
int ReCnctCount = 0;

BlynkTimer timer;

int r = 0;
int g = 0;
int b = 0;
int autoMode = 0;
uint8_t gHue = 0;
bool rele;
void setup()
{

//********** CHANGE PIN FUNCTION  TO GPIO **********
//GPIO 1 (TX) swap the pin to a GPIO.
pinMode(1, FUNCTION_3); 
//GPIO 3 (RX) swap the pin to a GPIO.
pinMode(3, FUNCTION_3); 
//**************************************************
  
WiFi.begin(ssid, pass); 
  Blynk.config(auth, server, port);
if (WiFi.status() == WL_CONNECTED) {
    Blynk.connect(2000);
  }

  FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalSMD5050);
  FastLED.setBrightness(BRIGHTNESS);
  #define FRAMES_PER_SECOND 120


  

  pinMode(D0, INPUT);
  pinMode(D1, INPUT);
  pinMode(D2, INPUT);
  pinMode(D5, INPUT);
  pinMode(D3, OUTPUT);
  pinMode(D4, OUTPUT);
  pinMode(D6, OUTPUT);
  pinMode(D7, OUTPUT);
  pinMode(D8, OUTPUT);

}


BLYNK_WRITE(V0)
{
  rele = param.asInt();
  digitalWrite(D3, rele);
}

BLYNK_WRITE(V1)
{
  rele = param.asInt();
  digitalWrite(D4, rele);
}

BLYNK_WRITE(V2)
{
  rele = param.asInt();
  digitalWrite(D7, rele);
}

BLYNK_WRITE(V3)
{
  rele = param.asInt();
  digitalWrite(D8, rele);
}

//--- Toggle Auto/Manual Mode ---
BLYNK_WRITE(V4) {
  autoMode = param.asInt();
}



//--- Red slider value---
BLYNK_WRITE(V6){
  r = param.asInt();
}


BLYNK_WRITE(V7) {
  g = param.asInt();
}

//--- Blue slider value---
BLYNK_WRITE(V8) {
  b = param.asInt(); 
}




void loop()
{

 timer.run();
  
 if (WiFi.status() == WL_CONNECTED) {
    if (Blynk.connected() == true) {
      Blynk.run();
    }
    else {
      Blynk.connect(3000);
    }
  }


if(autoMode == 0) {
    for (int i = 0; i < NUM_LEDS; i++){
      leds[i] = CRGB(r, g, b);
      FastLED.show();
    }
  }



if(autoMode == 1 ) {
    fill_rainbow( leds, NUM_LEDS, gHue, 7);
    // send the 'leds' array out to the actual LED strip
    FastLED.show(); 
    // insert a delay to keep the framerate modest
    FastLED.delay(100/FRAMES_PER_SECOND); 
    EVERY_N_MILLISECONDS(20) {
      gHue++; // slowly cycle the "base color" through the rainbow
    } 
  }

  
  if (digitalRead(D0))
  {
    rele = !rele;
    digitalWrite(D3, rele);
    Blynk.virtualWrite(V0, rele);
    delay (450);
  }

  if (digitalRead(D1))
  {
    rele = !rele;
    digitalWrite(D4, rele);
    Blynk.virtualWrite(V1, rele);
    delay (450);
  }

  if (digitalRead(D2))
  {
    rele = !rele;
    digitalWrite(D7, rele);
    Blynk.virtualWrite(V2, rele);
    delay (450);
  }

  if (digitalRead(D5))
  {
    rele = !rele;
    digitalWrite(D8, rele);
    Blynk.virtualWrite(V3, rele);
    delay (450);
  }


  
 
}

how to update relay state to server.

24

Blynk has a callback function called BLYNK_CONNECTED()
Whenever the device goes from a disconnected to connected status the BLYNK_CONNECTED() callback will fire.
Put some code in the BLYNK_CONNECTED() function that will update the server with the values that you want to synchronise, using Blynk.virtualWrite commands.

But, your void loop is a mess and you need to change it urgently, otherwise you will suffer disconnections from the Blynk server.

Read this:

Pete.

25

Sir i don’t know to add code to my code. Can u help me

26

I don’t have your hardware, so there is no way that I could test any changes to the code.
I’d suggest that you start learning.

Pete.

27

Am tried i cant any suggestions.

28 
// Every time we connect to the cloud...
BLYNK_CONNECTED() {
  // Request the latest state from the server
  Blynk.syncVirtual(V2);

  // Alternatively, you could override server state using:
  //Blynk.virtualWrite(V2, ledState);
}
29

Is it work. This cord
‘’’
Blynk.syncVirtual(V2, d2State)

‘’’