B4R Question Example code from C to B4R

[Hypnos]

Hi Erel and everyone,

Can you please give me an example code how to translate the follow code into B4R? Thanks!

void setup() {
  Serial.begin(31250);
}

void loop() {
  Serial.write(0x99);
  Serial.write(0x1E);
  Serial.write(0x45);

  }

 

[Erel]

Sub Process_Globals
   Public Serial1 As Serial
End Sub

Private Sub AppStart
   Serial1.Initialize(31250)
   AddLooper("Looper1")
End Sub

Sub Looper1
Serial1.Write(Array As Byte(0x99, 0x1E, 0x45))
End Sub

In most cases a timer is better than a looper: Timers, Loopers and CallSubPlus

 

[Hypnos]

Hi Erel,

I got "Unknown member: write" error in the "Serial1.wirte" line ?

 

[Erel]

My mistake. I'm too used to working with AsyncStreams. If you are only writing to the stream then use:

Serial1.Stream.WriteBytes(ArrayAs Byte(0x99, 0x1E, 0x45), 0, 3)

Discussions related to AsyncStreams: https://www.b4x.com/android/forum/pages/results/?query=b4r+asyncstreams

 

[Hypnos]

It's worked!

Yes, I asking for this example because I found many of the example in this forum using "AsyncStreams" and I'm not quite understand what's AsyncStreams and why not using serial1.stream directly.

I'll look into the related discussion and try to figure out what's the different.. Thanks for your help Erel!

 

[Erel]

If you are only writing then there is no difference. AsyncStreams takes care of checking whether there is new data and raises the NewData event when the data is available.
AsyncStreams also raises the Disconnected event if the connection breaks. However it will never happen with serial ports.