Close the Bluetooth Serial Port

Similar Questions

• Problem reading data via the Bluetooth Serial Port

  My request is meant to connect with a PC via Bluetooth.

  The PC runs a simple server that reads a string from the BlackBerry UTF and writes a UTF string in response.

  DataInputStream istream = connection.openDataInputStream();DataOutputStream ostream = connection.openDataOutputStream();
  
  System.out.print(istream.readUTF());
  
  ostream.writeUTF("Hello client");ostream.flush();
  
  ostream.close();istream.close();
  

  The sound written BlackBerry pin and reads the answer.

  DataInputStream istream = connection.openDataInputStream();        DataOutputStream ostream = connection.openDataOutputStream();ostream.writeUTF(Integer.toString(DeviceInfo.getDeviceId(), 16));ostream.flush();
  
  _rtf.insert(istream.readUTF());
  
  ostream.close();istream.close();
  

  The server reads and prints the PIN successfully, but the client raise EOFException at readUTF().

  What could be wrong?

  Solved. The server side must not empty its output stream.

• Wire bachground for Bluetooth Serial Port Communication

  Hello

  I want to make a request which should be as a background thread to run after that BB has been activated.

  I tried something:

  1. I used BluetoothSerialPortListener and as a normal application. After I chose the menuitem, it begins to listen to the bluetooth serial port. When the data are arrived through the port, it extracts the data and write a response to the sender. Then he out the value and display it on the screen, where I used an object of class screen. But, after posting a value, it cannot display the value came second. I tried, what the old screen pop fist, then puschup the new screen. But it does not work. How can do it, when the new value, they can be diaplayed on the screen?

  2. then I did the BluetoothSerialPortListener in thread and used the autostart flag such as:

  Public Shared Sub main (String [] args)
  {
  If (args! = null & args.length > 0)
  {
  if(args[0].) Equals ("autostartup"))
  {
  Starting the device we want to start the thread SycareBluetoothPortListener
               
  sycare_synergy ss = new sycare_synergy();
  }
  }

  This time around the Listner should take only data is arrived and then sends a response to the sender. But after downloading, BB has always shown that he was unable to generate a new object of the thread class and the thread could not be started.

  Someone tell me, how can I fix it and make it possible, that after each new start of the BB, the bluetooth serial port can always in the background arrivals data receive and display automated according the data arrived?

  Thank you in advanced and Merry chiristmas!

  Monternet

  1. update the user interface.

  It is possible that you are trying to do.  In fact, you don't need to replace the screen, you should be able to simply update a field on the current display of data.  As an example of a background thread to update the user interface, please see the code of httpdemo.

  2. Thread context

  When you say things like:

  "that he could not generate a new object of the thread class.

  It would be much better if you can cite exactly what makes the Blackberry.  In this case, I assume that it has generated an Exception, so the Exception and the associated detailed message that Exception must be included when you report a problem like this.

  In any case, it is possible to implement a background task in the way you need.  Search the Knowlegebase for articles that talk about background Applications and display updates to the user interface of the task in the background and auto-start applications.  There are a few pieces of confusion to this process, so there are a few to get your head around, but I think that everything is in the articles.

• Bluetooth Serial Port (SPP) on the XOOM profile

  Does anyone has experiences using devices to profile serial port with the XOOM?

  We try to get our through SPP Bluetooth barcode scanner and we had a few problems with the matching.

  We are able to pair our device with the XOOM did very well (using Bluetooth 2.1 Secure Simple pairing (SPP)), however, when we try to open a serial port (RFComm channel), the XOOM is trying to make an increased level of security and enforce Bluetooth man in the middle (MITM) protection.  The problem is that our device does not have ANY screen or buttons that would allow a user to enter the PIN code!

  Anyone tried the "non - ui" SPP BT 2.1 devices with the XOOM?  Such as barcode scanners or GPS units?

  We "got around" this by having our 'claim' device, the pin code has been entered correctly, but this is really just a hack.

  Thanks for any comments.

  Len

  We have solved this problem by using a new call API 2.3 and higher to specifically ask for a link "unauthenticated."

  Socket CHS Series software now fully supports Android 2.3 and features honeycomb (3.x).

  Kind regards

  Len Ott

  Socket Mobile

• The cRIO serial port can be used for the CAN bus communication?

  I would like to order a CVC with a CAN of network device and would like to know if this can be accomplished by using a serial port integrates the cRIO (OR cRIO-9024 in my case). Is it possible, or would need a C Series module CAN?

  You need a C Series module. Series and CAN use a DB9, but they do not have the same physical layer.

• VISA serial port automatically configures scan of the available serial ports?

  I am using a VISA set a serial port to open a connection to the serial port, to enter data, make some manipulation of array and display it.

  My VI works perfectly until what I have build in exe and transfer it on a laptop with a USB converter to port series (as the laptop does not have a serial port).

  Windows allocated the converter to COM9, but I do not see it in LabVIEW.

  Do I need to use something like 'Find VISA resource'? If it does find something how can I change the name of resource VISA?

  I have attached a screenshot to give you an idea of what I'm doing.

  There is absolutely no reason to use all of this code. The original order of resource VISA name should work just fine. Have you installed the runtime VISA on the laptop? If so, did you also install MAX, so you can check the VISA resources on the latptop?

  In addition, since an exe file will run automatically when opening, have you provided a mechanism for a com port selection until the program begins the acquisition of VISA?

• Option named pipe to add the missing Serial Port to Linux host

  Hi all

  I try to add a serial port as a channel named for a kernel debugging

  the installer, but this option is missing (see screenshot1). There are

  However the options to add the serial port in the file/socket.

  The host is 64-bit Fedora 10 2.6.27.24 - 170.2.68.fc10.x86_64 running.

  Workstation is 6.5.2 build-156735. I found that the named pipe option is missing, regardless of the type of the guest OS.

  I had posted this last week.

  http://communities.VMware.com/message/1267552

  and he said since as soon as I put in the following options in the marked .vmx file, a serial port option came (see screenshot2).

  Serial0.present = 'TRUE '.

  Serial0.filetype = 'pipe '.

  Serial0.filename = "/ tmp/com_1".

  I realized that I have a VM as the serial port server and others as a customer. So adding the option-

  Serial0.pipe.endpoint = 'server '.

  However, this option is breaking the vm configs (cannot start VM until I have delete this line).

  Please see the attached screenshot3 6.5.2 on Windows and you will see that there is a different and complete serial port setting to the research. You can easily set a virtual machine as a client/server side of the connection series on Windows.

  I would really appreciate if someone could give me some pointers as to why this difference between Linux and Windows, and how to get the type parameters for the serial ports under Linux Windows?

  My main goal for the purchase of workstation was to do kernel debugging using the serial ports, and now I'm totally paralyzed because of this. Pointers and suggestions are greatly welcome.

  Thank you very much

  HS

  no need to apologize

  Hey - if you work with functions like this - use the vmx directly - file so you can be sure that you get what you order

  ___________________________________

  VMX-settings- VMware-liveCD - VM-infirmary

• Bluetooth Serial Port issues

  Hello world

  Two questions:

  1. I'm accepting an incoming connection from the client BTSPP on my server BTSPP (ConnectionNotifier.acceptAndOpen ()) and then by calling RemoteDevice.getRemoteDevice (.) on the connection that results.  Curiously, although it is supposed to be a BTSPP link, I get IllegalArgumentException as a result of this call.  Clues?  The stack trace includes a code: 0xA030 after the other info.
  2. My Vista box creates two serial for this BTSPP one connection ports.  One is outgoing and one is inbound.  I use one out to talk to the BB from the PC.  Is it possible to turn to the right and use the one entering the BB to talk to the computer?  If so, is there a standard way to do it?

  Thank you

  Jimmy

  Your first point is a known problem when using a StreamConnection from a StreamConnectionNotifier on a connection to the server.  This has been resolved in the version of BlackBerry device software 4.6.0.96 and higher.

  The second point is possible.  There are several ways to do so.  You can use the Connector.open method to open a connection from the BlackBerry to your PC.  Please take a look at the class JavaDocs connector for more information.

• How a detector of fuel level on the USB/serial port to indicate the level of the interface?

  Hello!
  Im working on a project that contains a fuel level (capacitive sensor) sensor. My task is to connect the sensor to a PC and indicate the level of fuel on a chart. The instrument works with 1-wire communication, but Ive built a USB converter for it. So I want to plug it into the USB port on the computer and use Labview to access the fuel level. Its important, I need indicate level constantly, because the probe will build in a bus to see his level of fuel. I've never used instrument in LV control, that is why now wrote im.

  Please can someone help me build a VI to do this?

  Thank you very much
  Regarding.

  G. masseteau

  
  

• virtual serial port (offered by a USB device) may not be reopened once the device has been lost and reconnected

  To connect to a virtual serial port offered by a USB device.
  -Physically disconnect the device (disappears from the entry in Device Manager)
  -Reconnect the device. (It reappears in the Manager of input devices)
  -Close the file handle
  -Reopen the virtual serial port. --> the CreateFile() call always fails with "ERROR_FILE_NOT_FOUND".
  -After dis - / reconnect the USB device once, the serial port can be reopened

  Even the true return of GetDefaultCommConfig there yet in CreateFile().

  It is clearly bad habits, because in our case the disconnection/reconnection occurs due to a restart of the device; and it's quite embarrassing to explain buyer for the disconnect/reconnect the device.

  Is there another workaround solution to clean the window's internal data structures or show me how to open the port?

  Hello

  The question you posted would be better suited in the MSDN Forums. I would recommend posting your query in the MSDN Forums.

  http://social.msdn.Microsoft.com/forums/en/categories/

• Serial port profile Bluetooth help with saw-drill bit

  Hello

  Looking for example code using Bluetooth serial port profile using the basic version of the NDK. I can't find anything I find only using the waterfall.

  I need to set up a server, or a master of the blackberry device. Could you help me please. I read through the API, but I do not understand the implementation of the code needed for the realization of a simple connection of serial port Bluetooth mode master (server) profile.

  Thank you

  See soluton here

  https://supportforums.BlackBerry.com/T5/native-development/how-to-modiy-the-Makefile-to-link-the-so-...

• can't access serial port make sure you have the proper authorization

  Separated from this thread.

  IH im nithin my laptop does not take my dongel mts it is showing error massage as it is impossible to access the serial port, make sure that you have proper authorization can solve this problem

  Hello

  Sorry for the late reply.  You receive a message "access denied"?

  Try the steps listed by Srinivas KR

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-hardware/access-denied-Openning-Bluetooth-serial-port/3127e92e-57dB-4d27-A017-16a90a43e8c7

• Questions about serial port read and write at the same time

  Hi I create a user interface for the communication serial port, where there are essentially 2 front panels, where the user enters commands one and the other where the prints of UART is delivered. I thought initially using a state machine but the reading and writing may be independent sometimes and so I can't rely on States. I searched a bit on the forum and he left me even more confused. Help, please.

  (1) in a thread that sessions visa duplicated has been used for writing and reading at the same time, is it recommendable? How will this affect performance?

  (2) essentially when the vi is reading data are it must constantly view as well, however, someone said that it takes too much memory to use shift registers, so how do I go about this? If using a State in queue after the loop of reading it affects the playback loop and be sequential?

  In addition anyway is to move the cursor to the latest data from the indicator

  (3) for the control of the user input, assumes that the user has entered an order in the control and press ENTER, then writing visa is launched, but if it comes in another string and press enter then write must be called again... is - it possible? will detect the previous commands in the control of compensation?

  (4) according to my understand the expectation for the event do not monopolize resources and writing can go in parallel, am I right?

  Thank you. I have attached a very basic vi which took me to the point, but I want to make it more robust. Please help especially in the part of the user interface.

  su_a,

  (1) you can have only one session to a port. Several UART can handle full duplex so performance is not affected.  At flow rates of high data and large amounts of data, buffering and latencies of BONE can become a problem.

  (2) who told you that shift registers using too much memory? Shift registers are usually the best way to transfer data from one iteration to another. String concatenation inside a loop (registry to offset or not) causes the chain to develop and may require re-allocation of memory.  Your VI never clears the string so its cold length become very large.

  Generally, you do not have an active cursor on an indicator.  If you want to always display the most recently received characters and turn on the vertical scroll bar use a property node to keep scrolls to the bottom.  This can be annoying for users if they attempt to manually move the scroll bar and find that the program continues to move it back automatically.

  (3) if the user has changed the value in the chain of command, when he hits enter the modified value event fires.  Simply strike brace does not change the value and does not trigger the event.  Not control need to be erased, but the value that he has to change.  If you want to send the same command again, have a button send a command may be a better choice.

  (4) write is a case of the event.  It is not in parallel with anything.  The structure of the event do not monopolize resources.  The other loop will run while it waits.

  The event loop will not stop when you press the STOP button. Probably it wll take two command: change events of value after JUDGMENT before any loop stops.  Replace the Timeout event (which never expires) with a STOP: value change event and a real wire of this judgment to the Terminal endpoint.  Remove the local variable.  Make mechanical locking when released.

  Lynn

• Data NMEA which are received on the serial port, when the system starts causes windows 7 to interpret these data as a serial ballpoint mouse and moves the cursor jumping around.

  I know this question was asked several times before, but the solutions proposed, such as changin the registry does not help. It changes by itself. In the configuration that I have in my boat, the stream of NMEA data is directly injected into the COM port so no driver is necessary. It's a problem easily solved in windows XP, why is it so difficult in W7? There must be a way to permanently disable the plug-and-play driver load. I found this program that works only for Vista, if I understand correctly: http://www.stentec.com/en/download-freeware COM port plug & play blocker. If something similar could be provided by MS for W7, it would be very good...

  It turns out that the program at the port of Stentec COM (freeware) http://www.stentec.com/en/download-freeware care & play blocker, also works in W7. I don't know how it works, but it does, and it's good for me! It also works for the virtual serial ports.

• ESXi 4.1 supports the transmission of serial port?

  I'm having a bit to find this information...

  My ESXi server has a serial port that I want to be available to a virtual machine (guest).  Is this possible?

  I don't want to share the serial port or do anything "fancy".  I just want it to be accessible.

  Thank you!

  Starting with ESXi 4.1, you can go through a serial port.  Simply add a port series to virtual hardware for the virtual machine and choose the option 'Use the physical serial port'.