I am writing a code for bridge communication

[PeteKnight]

@Yash69 please DO NOT create multiple logins to the forum.
Your @Yash68 login has been deleted and if you do this again your IP address and email will be blocked.

Pete.

[Blynk_Coeur]

I didn’t even notice
And I can’t write his code, he has to learn before .

[Gunner]

@Yash69

Can you provide me an example please

You can search for such you know

C++ Blynk (Legacy) - Code Examples for Basic Tasks

#11 - The simple, but mystifyingly complex, Bridge The Bridge is meant to allow totally separate projects to share data, and/or control things between themselves. You can also have just one project with multiple devices, but have any of the 1st device’s Blynk functions triggered directly by Bridge code in the 2nd device… bypassing the App. As long as the Auth tokens were generated on the same server, then this can even share between different accounts… I think? Basically, Blynk Br…

[Yash69]

#define BLYNK_PRINT Serial



#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <SimpleTimer.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "qmppE8kZmNhF8zTuaQdi__QnmIL-Dw1u";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "nitinpa";
char pass[] = "nitinpa1";
char BridgeAuth2[] = "ljF4YLcyFN9P6iVeze92GsffvGwSeb2J";




SimpleTimer timer;

        
     WidgetBridge bridge1(V1);
     WidgetBridge bridge2(V2);
    


void setup(){
   Blynk.begin(auth, ssid, pass);
   while (Blynk.connect() == false) {
       
   }
   
   
 int A36 = analogRead(36);
 int A39 = analogRead(39);
 int A34 = analogRead(34);
 int A35 = analogRead(35);
 int A32 = digitalRead(32);
 int A33 = digitalRead(33);

 bridge2.virtualWrite(V1, A36);
   timer.setInterval(10);
 bridge2.virtualWrite(V2, A39);
   timer.setInterval(12);
 bridge2.virtualWrite(V3, A34);
   timer.setInterval(14);
 bridge2.virtualWrite(V4, A35);
   timer.setInterval(16);
 bridge2.virtualWrite(V5, A32);
   timer.setInterval(18);
 bridge2.virtualWrite(V6, A33);
   timer.setInterval(20);
}
BLYNK_CONNECTED() {
 bridge2.setAuthToken("BridgeAuth2"); // Token of the hardware B
}



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

I am trying to read analog pins with timer function it is showing an error

redefinition of ‘class BlynkTimer’

[Blynk_Coeur]

You should write BlynkTimer timer;

take a look at @PeteKnight topic.

Using BlynkTimer or SimpleTimer

Many users seem to struggle with the basic concepts of using BlynkTimer in their projects, despite the excellent discussions and tutorials that exist on this forum, so I thought I’d write a guide that will hopefully help clarify things. It’s rather long, as it attempts to explain the reasoning behind why and how we use timers, and covers some more advanced subjects, but I’ve tried to organise it in a way that helps people to find answers to specific questions… Why use a timer at all? Let’s say …

[Yash69]

is there anything else wrong in this code? xd

[Blynk_Coeur]

I don’t see any timer.setInterval

read @PeteKnight topic before continue

[Yash69]

I read the post and modified the code but it is still showing an error

here is the code

#define BLYNK_PRINT Serial



#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Blynk.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "qmppE8kZmNhF8zTuaQdi__QnmIL-Dw1u";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "nitinpa";
char pass[] = "nitinpa1";
char BridgeAuth2[] = "ljF4YLcyFN9P6iVeze92GsffvGwSeb2J";




 BlynkTimer timer;
 
         
      WidgetBridge bridge1(V1);
      WidgetBridge bridge2(V2);
     


void setup(){
    Blynk.begin(auth, ssid, pass);
    while (Blynk.connect() == false) {
        
    }
    
    
  int A36 = analogRead(36);
  int A39 = analogRead(39);
  int A34 = analogRead(34);
  int A35 = analogRead(35);
  int A32 = digitalRead(32);
  int A33 = digitalRead(33);

  bridge2.virtualWrite(V1, A36);
    timer.setInterval(10);
  bridge2.virtualWrite(V2, A39);
    timer.setInterval(12);
  bridge2.virtualWrite(V3, A34);
    timer.setInterval(14);
  bridge2.virtualWrite(V4, A35);
    timer.setInterval(16);
  bridge2.virtualWrite(V5, A32);
    timer.setInterval(18);
  bridge2.virtualWrite(V6, A33);
    timer.setInterval(20);
}
BLYNK_CONNECTED() {
  bridge2.setAuthToken("BridgeAuth2"); // Token of the hardware B
}



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

and here is the error

‘Timer’ does not name a type

[Blynk_Coeur]

You have to learn guy

#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Blynk.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "qmppE8kZmNhF8zTuaQdi__QnmIL-Dw1u";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "nitinpa";
char pass[] = "nitinpa1";
char BridgeAuth2[] = "ljF4YLcyFN9P6iVeze92GsffvGwSeb2J";

BlynkTimer timer;

WidgetBridge bridge1(V1);
WidgetBridge bridge2(V2);

void setup() {
  Blynk.begin(auth, ssid, pass);
  
  while (Blynk.connect() == false) {
  }
timer.setInterval(1000L, Reading);
}

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

void Reading(){
  int A36 = analogRead(36);
  int A39 = analogRead(39);
  int A34 = analogRead(34);
  int A35 = analogRead(35);
  int A32 = digitalRead(32);
  int A33 = digitalRead(33);

  bridge2.virtualWrite(V1, A36);
  bridge2.virtualWrite(V2, A39);
  bridge2.virtualWrite(V3, A34);
  bridge2.virtualWrite(V4, A35);
  bridge2.virtualWrite(V5, A32);
  bridge2.virtualWrite(V6, A33);
}

BLYNK_CONNECTED() {
  bridge2.setAuthToken("BridgeAuth2"); // Token of the hardware B
}

[Yash69]

can I lower the delay?
to 100ms

[PeteKnight]

@Yash69

is there anything else wrong in this code?

Hmm, where to begin?

I’m guessing that you don’t understand the basics of a C++ program structure, and that the void setup() function runs just once, at start-up.?

You’re also using the Blynk.connect() command, and I guess you really mean Blynk.connected(), although that whole piece of code is unnecessary anyway.

If you bother to read the link to my “Using BlynkTimer…” post then you’ll also realise that the syntax of theses commands is wrong…

@Yash69

timer.setInterval(10);

You’d really be better scrapping your existing code and starting with this code on your “sending” device, and simply adding-in more commands into the void blynkAnotherDevice() function to send data to other virtual pins via the bridge…

Blynk Example Browser

Pete.

[Yash69]

yep I don’t understand c++ yet
I am starting to learn it

[Blynk_Coeur]

@Yash69

can I lower the delay?
to 100ms

You can try.
what is analyzed? is 100ms really necessary?

[Yash69]

Yes 100 ms is needed

[Blynk_Coeur]

I need answer : what is analyzed?

[Yash69]

joysticks output to control something

[PeteKnight]

So, you’re using hardware joysticks connected to an ESP32, rather than joystick widgets in the app?
Which is why you need to use Bridge code.

Good luck with getting a responsive result with that setup!

BTW, did you know that the version of Blynk that you are currently using will be switched-off in 6 months or so?

Pete.

[Yash69]

idk how to use blynk new version and i want to control my devices even when i do not have my phone its the reason for choosing bridge when this blynk shut down then i will switch to the blynk iot

[Yash69]

hey can I use
int pindata = param.asmap
instead of int pindata = param.asint

[Gunner]

@Yash69

i want to control my devices even when i do not have my phone its the reason for choosing bridge

Better to wire up the joystick to the same ESP32, then write your code to accept either control. And consider provisions to allow the code to run in case server connectivity is also lost.

@Yash69

hey can I use
int pindata = param.asmap

Only if you want a compiling error. These are the Virtual Pin data types allowed.

• https://docs.blynk.cc/#blynk-firmware-virtual-pins-control

To interpret incoming data as Integers, Floats, Doubles and Strings use:

param.asInt();
param.asFloat();
param.asDouble();
param.asStr();

You can also get the RAW data from the param buffer:

param.getBuffer()
param.getLength()