How to take some variable from blynk write function and use in other function?

[PeteKnight]

As I said to you yesterday…

@PeteKnight

If you want to know the current virtual datastream value then you should save it in a public variable so that you can reference it elsewhere in your sketch.

You aren’t doing that, you’re saving the data to a local variable, which means that it’s not available outside of the BLYNK_WRITE(Vpin) function…

@nacka301

int setzraka=param.asInt();

If you want setzraka to be available outside of BLYNK_WRITE(V3) then you need to declare int setzraka outside of a function, preferable near the top of your code with your other variable declarations, and remove the int from the beginning of int setzraka in BLYNK_WRITE(V3) to avoid re-declaring a local copy of the setzraka variable.

I also said…

@PeteKnight

Also, you shouldn’t have anything in your void loop other than…

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

but you’ve disregarded that advice.
You should read this…

Keep your void loop() clean

and re-write your sketch to remove all of the delays and to use BlynkTimer instead, and also use BlynkTimer to call the functions that are currently in your void loop.

Pete.