Android Question Bluetooth to arduino (some questions)

newbie · May 30, 2017

Hi,

i want to use AsyncStreams ro communicate with an arduino

when i set in the sub Serial_Connected
AStream.InitializePrefix(serial.InputStream,False,serial.OutputStream,"AStream")
the programm stopps

B4X:

Private Sub Serial_Connected (Success As Boolean)
   If Success Then
     
     If AStream.IsInitialized Then AStream.Close
     AStream.InitializePrefix(serial.InputStream,False,serial.OutputStream,"AStream")
   
     Log("Connected")
     connected = True
     
   Else
     Log(LastException)
   End If
   connecting = False
   CallSub(Main, "SetState")
End Sub

i don't now what is wrong

another question is:
how to watch permanently if the Bluetooth-connection is ok or not ??

thanks for hints

Erel · May 30, 2017

Are you using B4R to program the Arduino?

newbie · May 30, 2017

Erel said:
Are you using B4R to program the Arduino?

YES,
but the problem is on the b4A-side, to initialize
AStream.InitializePrefix and how to watch the bluetooth-connection

Erel · May 30, 2017

You should check the logs and post the error message.

newbie said:
how to watch the bluetooth-connection

Handle AsyncStreams Error and Terminated events.

newbie · May 31, 2017

Erel said:
You should check the logs and post the error message.

Handle AsyncStreams Error and Terminated events.

The Error message is:
java.io.IOException: Service discovery failed

Erel · Jun 1, 2017

This error has nothing to do with AsyncStreams. The serial connection has failed.

Android Question Bluetooth to arduino (some questions)

newbie

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