Passing many virtual pins into single command

1

Hi

Is there any way I can pass various virtual pins in one single command?
For example, if i have to LOW V1,V2,V3, then I have to write these 3 commands repeateadly
Blynk.virtualWrite(V1, LOW);
Blynk.virtualWrite(V2, LOW);
Blynk.virtualWrite(V3, LOW);

Is there any way I can pass single command instead of 3 different commands?

Please help

2

Hello, could you please explain how do you see this in code?

3

I may be wrong, but passing various Blynk.virtualWrite to ESP8266 hangs the network and it starts reconnecting.
I want to use it like this Blynk.virtualWrite(V1,V2,V3, LOW);
I tried this, but this doesn’t work as Blynk.virtualWrite passes single function. Is there any other way around?

4

In most cases problem in wirings or sketch code and not in virtualWrite itself.

@vshymanskyy what do you think? seems like possible optimization for me.

5

Yes there may be an issue in code itself but in Blynk docs, it is stated that “Be careful sending a lot of Blynk.virtualWrite commands as most hardware is not very powerful (like ESP8266) so it may not handle many requests.”
and I am sending around 10-12 REQUEST in one push.
That’s why I came up with this idea of reducing the many virtualWrite commands into one. It saves the program size, looks neat but doesn’t work. :unamused:

6

Anyone with the solution?

7

Blynk.virtualWrite(V1,V2,V3, LOW);
…
Currently we can’t do that on the library side.

8

What is other way around to do so? Use FOR loop?

9

yes you can!

for (int pin=V1; pin < V4; pin++) {
   Blynk.virtualWrite(pin, LOW);
   delay(5);
}

this should work. you can put small delay between calls if you want, not more than few ms.

2 Likes
10

Thanks @vshymanskyy, for your help. In future updates kindly enable atleast 2-3 virtual pins pass through single virtualWrite command.