Serial Example does not work?

[bstrable]

If I run the "Android Serial tutorial" on my Archos 70 Internet Tablet, I get an error message:
"An error has occured in the sub:main_activity-resume (B4A line:29) Serial1.Listen 'listen for incoming connections
java.io.IOException: Not able to register SDP record for B4A"

I have bluetooth enabled, If I press "Yes" to continue, I can connect to my bluetooth device, and send text from the Archos. If I try to send anything to the Archos, I get this: "Sorry! Activity Serial Example (in application Serial Example) is not responding" Force Close or Wait.

I have Android version 2.1.4 (Android 2.2.1) on my device.

What am I missing?

 

[Erel]

Seems like a problem with your device that prevents the software from opening the serial port.
You can try closing other applications that may lock the serial port.

 

[bstrable]

Serial Example not working

I made sure all programs are stopped before running the example.

I have installed BlueTerm and used it with no problems.
Source Code here: http://pymasde.es/blueterm/

My reason for purchasing the enterprise edition was so I could easily create a program that would send and receive data to a custom machine control. Could this possibly be a bug in the Serial Library?

 

[agraham]

Could this possibly be a bug in the Serial Library?

Unlikely as that error is coming from low-level code. There is not much on this error if you Google for it but Bluetooth getting "Not able to register SDP record" - why? - Android Developers | Google Groups found it suddenly started for him and was cured by a reboot of the device. I suggest you try a reboot or hard reset if you have not already tried it.

 

[bstrable]

Just tried powering down, even tried a hard reboot.
Serial Example doesn't work, BlueTerm still works though.

Has anyone tried this on a real device? If so, what devices work? I may have to look at returning the Archos a buying one that works with Basic4Android.

Thanks,
Brian

 

[Erel]

Do you need to listen for connections? If not then you can remove the call to Listen.
It seems that BlueTerm application doesn't open a server socket at all and is probably why it doesn't fail on your device.

 

[bstrable]

Ok, I removed the call to listen, and I get no error!!:sign0060:

I had another problem however, in the Serial Example is states:

"TextReader.ReadLine is a blocking call. It waits till there is at least a single character to be read. Therefore we need to test TextReader.Ready if we don't want to block our application."

This is not true on my device. My device will hang until it receives a <CR> character. My terminal program on the PC was only sending a <LF> character when I press enter. I do not see where the <CR> is being checked for, but I may have to try using AsyncStreams.

Is there a Serial Chat example that uses AsyncStreams? Sorry, I am a vb programmer, and this is all a bit confusing to me.
Thanks,
Brian

 

[bstrable]

Ahh, nevermind. I figured out how to use AsyncStreams with serial. I will need to cleanup the code a bit, and I will post it for others. :sign0089:

 

[supriono]

bstrable can you share u program,,, my code serial using bluetooth error connect=false mybe u want to help me:sign0085:

i am a newbie in basic program...:sign0087:

 

[Erel]

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