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The physical button without wifi does not work

• NodeMcu ESP8266 V3 Lua CH340 Wifi Dev. Board
• android p
• Blynk server
• Blynk Library version 0.6.1


#define BLYNK_PRINT Serial
#include "FastLED.h"
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#define LED_PIN 3
#define NUM_LEDS 3 // Number of LEDs connected.
#define BRIGHTNESS 64 // Default LED brightness.
#define LED_TYPE WS2812B
#define COLOR_ORDER RGB
CRGB leds[NUM_LEDS];



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



BlynkTimer timer;
void checkPhysicalButton();

//---variables for our RGB values (0-1023) ---
int r = 0;
int g = 0;
int b = 0;

//---variables for On/Off, and Auto/Manual toggle

int autoMode = 0;

//--- int/byte for automatic hue incrementation---
uint8_t gHue = 0; // rotating "base color" used by many of the patterns

bool rele;

BLYNK_CONNECTED() {
  // Request the latest state from the server
  Blynk.syncVirtual(V0);
  Blynk.syncVirtual(V1);
  Blynk.syncVirtual(V2);
  Blynk.syncVirtual(V3);
  Blynk.syncVirtual(V4);
  Blynk.syncVirtual(V5);
  Blynk.syncVirtual(V6);
  Blynk.syncVirtual(V7);
  Blynk.syncVirtual(V8);
  }

// Button 1
BLYNK_WRITE(V0) {
  rele = param.asInt();
  digitalWrite(D1, rele);
}


// Button 2
BLYNK_WRITE(V1) {
  rele = param.asInt();
  digitalWrite(D4, rele);
}

// Button 3
BLYNK_WRITE(V2){
  rele = param.asInt();
  digitalWrite(D5, rele);
}

// Button 4
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 checkPhysicalButton()
{
 if (digitalRead(D7))
  {
    rele = !rele;
    digitalWrite(D8, rele);
    Blynk.virtualWrite(V3, rele);
    delay (450);
  }


 if (digitalRead(D0))
  {
    rele = !rele;
    digitalWrite(D4, rele);
    Blynk.virtualWrite(V1, rele);
    delay (450);
  }


  if (digitalRead(D6))
  {
    rele = !rele;
    digitalWrite(D5, rele);
    Blynk.virtualWrite(V2, rele);
    delay (450);
  }

  if (digitalRead(D2))
  {
    rele = !rele;
    digitalWrite(D1, rele);
    Blynk.virtualWrite(V0, rele);
    delay (450);
  }



}



void setup()
{
  // Debug console
  Serial.begin(9600);

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



  

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

  // Setup a function to be called every 100 ms
 
  timer.setInterval(100L, checkPhysicalButton);

Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);

}

void loop()
{
 
if(autoMode == 0) {
    for (int i = 0; i < NUM_LEDS; i++){
      leds[i] = CRGB(r, g, b);
      FastLED.show();
      delay(30);
    }
  }

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(1000/FRAMES_PER_SECOND); 
    EVERY_N_MILLISECONDS(20) {
      gHue++; // slowly cycle the "base color" through the rainbow
    } 
  }

  Blynk.run();
  timer.run();
}

Take a look at this:

2 Likes

sir i don’t know how to add this code in my code, please help me,

@Toro_Blanco help me please

void setup()
{

WiFi.begin(ssid, pass);  // Non-blocking if no WiFi available
  Blynk.config(auth, server, port);
  Blynk.connect();
//your code

}


void loop() {
  timer.run();
  
  if (Blynk.connected()) {  // If connected run as normal
    Blynk.run();
  } else if (ReCnctFlag == 0) {  // If NOT connected and not already trying to reconnect, set timer to try to reconnect in 30 seconds
    ReCnctFlag = 1;  // Set reconnection Flag
    Serial.println("Starting reconnection timer in 30 seconds...");
    timer.setTimeout(30000L, []() {  // Lambda Reconnection Timer Function
      ReCnctFlag = 0;  // Reset reconnection Flag
      ReCnctCount++;  // Increment reconnection Counter
      Serial.print("Attempting reconnection #");
      Serial.println(ReCnctCount);
      Blynk.connect();  // Try to reconnect to the server
    });  // END Timer Function
  }
}
1 Like

As @harymk is using Blynk.begin in his original void setup then that will need to be changed as well :slightly_frowning_face:

Pete.

1 Like

I just add it in setup :stuck_out_tongue_winking_eye:

1 Like

thanks dear now its working fine.

sir can we change wifi ssid and password with blynk auth

You are welcome.
Why don’t you use interrupt to control physical buttons ?

Yes you can but with HTML
You can find a way to change it on this forum

give me detail

The search function is very handy, as are saying Please and Thank You.
Try searching for “WiFiManager”.

Pete.

1 Like

sir now all function going slowly

What do you mean “now all function going slowly” ?
Pls provide us your new code and serial printed
Don’t forget to format it.

if wifi not connected every 30 sec physical button 10 sec not working any solution

I’m afraid that this random collection of words doesn’t tell us anything.

Pete.

1 Like

sir i dont know english well

if wifi not connected, every 30 sec, physical button 10 sec not working. any solution…

Blynk.connect(); is a blocking function, therefore while it is trying to reconnect to the server the physical button will not work. From my understanding there is no way around this. you can reduce the amount of time it tries to reconnect by adding a timeout, for example: Blynk.connect(1000);