Android Question Printing integer

Never use TextWriter.

You should send the data with AsyncStreams.
If you want to send an integer as string:

i dont know why you said i should not use TextWriter. i think i should clarify my question.for example i want to contorl the color of a RGB common cathode led. but in the following image, the code for button red works but the code for seekbar does not work. we send data to module by the TextWriter. i dont understand your code:
Dim s As String = YourIntVariable
astream.WriteBytes(s.GetBytes("UTF8"))
what should i do then?

Which version of B4A are you using?
Sending or receiving network data on the main thread is a bad idea and will likely cause your app to crash or freeze.

Worth watching the video tutorial and example: https://www.b4x.com/android/forum/threads/b4x-network-asyncstreams-b4xserializator.72149/#content