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Bluetooth Low Energy example doesn't work

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bluetoothlow energyblewindows 10qt 5.10.0
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  • A Offline
    A Offline
    Ashi
    wrote on last edited by
    #1

    Hello,
    I'm new in Qt, and I want to develop a program with BLE connection. I started to run "Bluetooth Low Energy Scanner" example and some other examples from the examples list. But it doesn't work correctly. The list of devices always empty.
    I am using windows 10 and Qt 5.10.0
    Can anyone help me please?

    A A 2 Replies Last reply
    0
    • A Offline
      A Offline
      Ashi
      wrote on last edited by
      #2

      Can anyone help me?
      I found this but still confused!
      Does Qt supports Bluetooth API on Windows 10?
      If yes, could you please tell me how to use it?

      aha_1980A 1 Reply Last reply
      0
      • A Ashi

        Can anyone help me?
        I found this but still confused!
        Does Qt supports Bluetooth API on Windows 10?
        If yes, could you please tell me how to use it?

        aha_1980A Offline
        aha_1980A Offline
        aha_1980
        Lifetime Qt Champion
        wrote on last edited by
        #3

        @Ashi said in Bluetooth Low Energy example doesn't work:

        Can anyone help me?
        I found this but still confused!
        Does Qt supports Bluetooth API on Windows 10?

        By reading the docs, no. At least not until someone provides a suitable driver.

        Qt has to stay free or it will die.

        1 Reply Last reply
        1
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi and welcome to devnet,

          IIRC, the wip/win branch of the module provides preliminary support for BLE. However you have to build it yourself.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          1 Reply Last reply
          3
          • A Offline
            A Offline
            Ashi
            wrote on last edited by
            #5

            Thanks @SGaist ,

            I tried to do the following:
            git clone git://code.qt.io/qt/qtconnectivity.git
            cd qtconnectivity
            git checkout wip/win

            But still the same problem. The devices list is empty.
            Did I do something wrong? or miss something?
            Thank you very much!

            mrjjM 1 Reply Last reply
            0
            • A Ashi

              Thanks @SGaist ,

              I tried to do the following:
              git clone git://code.qt.io/qt/qtconnectivity.git
              cd qtconnectivity
              git checkout wip/win

              But still the same problem. The devices list is empty.
              Did I do something wrong? or miss something?
              Thank you very much!

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #6

              @Ashi
              Hi and you did also build it ?

              A 1 Reply Last reply
              2
              • mrjjM mrjj

                @Ashi
                Hi and you did also build it ?

                A Offline
                A Offline
                Ashi
                wrote on last edited by
                #7

                @mrjj yes I did.

                mrjjM 1 Reply Last reply
                1
                • A Ashi

                  @mrjj yes I did.

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  @Ashi
                  and make install ?
                  so its installed into Qt ?

                  1 Reply Last reply
                  3
                  • A Ashi

                    Hello,
                    I'm new in Qt, and I want to develop a program with BLE connection. I started to run "Bluetooth Low Energy Scanner" example and some other examples from the examples list. But it doesn't work correctly. The list of devices always empty.
                    I am using windows 10 and Qt 5.10.0
                    Can anyone help me please?

                    A Offline
                    A Offline
                    Ashi
                    wrote on last edited by
                    #9

                    @Ashi How can I make install?? Could you please explain?
                    Thanks in advance!

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      nmake install in the build folder if you are using Visual Studio and mingw32-make install if you are using MinGW

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      A 2 Replies Last reply
                      3
                      • SGaistS SGaist

                        nmake install in the build folder if you are using Visual Studio and mingw32-make install if you are using MinGW

                        A Offline
                        A Offline
                        Ashi
                        wrote on last edited by
                        #11
                        This post is deleted!
                        1 Reply Last reply
                        0
                        • SGaistS SGaist

                          nmake install in the build folder if you are using Visual Studio and mingw32-make install if you are using MinGW

                          A Offline
                          A Offline
                          Ashi
                          wrote on last edited by Ashi
                          #12

                          @SGaist After made make install I got the following:

                          C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity>nmake install
                          
                          Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                          Copyright (C) Microsoft Corporation.  All rights reserved.
                          
                                  cd src\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\src.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                          
                          Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                          Copyright (C) Microsoft Corporation.  All rights reserved.
                          
                                  cd bluetooth\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\bluetooth\bluetooth.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                          Project MESSAGE: perl -w C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\syncqt.pl -module QtBluetooth -version 5.10.1 -outdir C:/Qt/Qt5.10.0/Examples/Qt-5.10.0/qtconnectivity C:/Qt/Qt5.10.0/Examples/Qt-5.10.0/qtconnectivity
                          'perl' is not recognized as an internal or external command,
                          operable program or batch file.
                          Project ERROR: Failed to run: perl -w C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\syncqt.pl -module QtBluetooth -version 5.10.1 -outdir C:/Qt/Qt5.10.0/Examples/Qt-5.10.0/qtconnectivity C:/Qt/Qt5.10.0/Examples/Qt-5.10.0/qtconnectivity
                          NMAKE : fatal error U1077: 'cd' : return code '0x3'
                          Stop.
                          NMAKE : fatal error U1077: 'cd' : return code '0x2'
                          Stop.
                          
                          

                          And still after running the example again, the devices list is empty.

                          1 Reply Last reply
                          0
                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #13

                            As the error suggests: you are missing Perl. Install it.

                            It’s normal noting changed, the module wasn’t even built.

                            Interested in AI ? www.idiap.ch
                            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                            1 Reply Last reply
                            3
                            • A Offline
                              A Offline
                              Ashi
                              wrote on last edited by Ashi
                              #14

                              @SGaist During installation process of QT this problem occurred:

                              0_1514874723242_Qt-perl.png
                              So I clicked 'Ignore'.
                              Then I tried to install "C:\Qt\Qt5.10.0\Tools\Perl52213_32\strawberry-perl-5.22.1.3-32bit.msi
                              but nothing changed.
                              I tried to reinstall it and disabled Antivirus and the same error appeared.
                              Is there anyway to overcome this problem?

                              1 Reply Last reply
                              0
                              • SGaistS Offline
                                SGaistS Offline
                                SGaist
                                Lifetime Qt Champion
                                wrote on last edited by
                                #15

                                Did it install successfully ?
                                If so did you try to call perl from a new command prompt ?

                                Interested in AI ? www.idiap.ch
                                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                A 1 Reply Last reply
                                0
                                • SGaistS SGaist

                                  Did it install successfully ?
                                  If so did you try to call perl from a new command prompt ?

                                  A Offline
                                  A Offline
                                  Ashi
                                  wrote on last edited by
                                  #16

                                  @SGaist I restarted the Qt command line and the error that related to Perl disappeared and I got the following:

                                  
                                  C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity>nmake install
                                  
                                  Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                  Copyright (C) Microsoft Corporation.  All rights reserved.
                                  
                                          cd src\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\src.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                                  
                                  Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                  Copyright (C) Microsoft Corporation.  All rights reserved.
                                  
                                          cd bluetooth\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\bluetooth\bluetooth.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                                  
                                  Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                  Copyright (C) Microsoft Corporation.  All rights reserved.
                                  
                                          "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile.Release install
                                  
                                  Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                  Copyright (C) Microsoft Corporation.  All rights reserved.
                                  
                                          link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /OPT:REF /INCREMENTAL:NO /DLL /SUBSYSTEM:WINDOWS /VERSION:5.10 /MANIFEST:embed /OUT:..\..\lib\Qt5Bluetooth.dll @C:\Users\kacst\AppData\Local\Temp\nm98A.tmp
                                  Qt5Core.lib(Qt5Core.dll) : fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
                                  NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\link.EXE"' : return code '0x458'
                                  Stop.
                                  NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe"' : return code '0x2'
                                  Stop.
                                  NMAKE : fatal error U1077: 'cd' : return code '0x2'
                                  Stop.
                                  NMAKE : fatal error U1077: 'cd' : return code '0x2'
                                  Stop.
                                  
                                  
                                  C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity>
                                  

                                  Thanks for your response!

                                  jsulmJ 1 Reply Last reply
                                  0
                                  • A Ashi

                                    @SGaist I restarted the Qt command line and the error that related to Perl disappeared and I got the following:

                                    
                                    C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity>nmake install
                                    
                                    Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                    Copyright (C) Microsoft Corporation.  All rights reserved.
                                    
                                            cd src\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\src.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                                    
                                    Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                    Copyright (C) Microsoft Corporation.  All rights reserved.
                                    
                                            cd bluetooth\ && ( if not exist Makefile C:\Qt\Qt5.10.0\5.10.0\msvc2015_64\bin\qmake.exe -o Makefile C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity\src\bluetooth\bluetooth.pro ) && "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile install
                                    
                                    Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                    Copyright (C) Microsoft Corporation.  All rights reserved.
                                    
                                            "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe" -f Makefile.Release install
                                    
                                    Microsoft (R) Program Maintenance Utility Version 14.00.24210.0
                                    Copyright (C) Microsoft Corporation.  All rights reserved.
                                    
                                            link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /OPT:REF /INCREMENTAL:NO /DLL /SUBSYSTEM:WINDOWS /VERSION:5.10 /MANIFEST:embed /OUT:..\..\lib\Qt5Bluetooth.dll @C:\Users\kacst\AppData\Local\Temp\nm98A.tmp
                                    Qt5Core.lib(Qt5Core.dll) : fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
                                    NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\link.EXE"' : return code '0x458'
                                    Stop.
                                    NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe"' : return code '0x2'
                                    Stop.
                                    NMAKE : fatal error U1077: 'cd' : return code '0x2'
                                    Stop.
                                    NMAKE : fatal error U1077: 'cd' : return code '0x2'
                                    Stop.
                                    
                                    
                                    C:\Qt\Qt5.10.0\Examples\Qt-5.10.0\qtconnectivity>
                                    

                                    Thanks for your response!

                                    jsulmJ Offline
                                    jsulmJ Offline
                                    jsulm
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #17

                                    @Ashi Shouldn't you "nmake install" what you cloned from the repository before?

                                    git clone git://code.qt.io/qt/qtconnectivity.git
                                    cd qtconnectivity
                                    git checkout wip/win
                                    ...
                                    nmake
                                    nmake install
                                    

                                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #18

                                      You should also use the correct command line prompt for building especially if you start with the one provided by Visual Studio.

                                      Interested in AI ? www.idiap.ch
                                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      1 Reply Last reply
                                      0
                                      • A Ashi

                                        Hello,
                                        I'm new in Qt, and I want to develop a program with BLE connection. I started to run "Bluetooth Low Energy Scanner" example and some other examples from the examples list. But it doesn't work correctly. The list of devices always empty.
                                        I am using windows 10 and Qt 5.10.0
                                        Can anyone help me please?

                                        A Offline
                                        A Offline
                                        Abdurahman_Gulamkadirov
                                        wrote on last edited by
                                        #19

                                        @Ashi Sorry, I'm too late to answer this post. I think you should try with msvc compiler, not mingw

                                        1 Reply Last reply
                                        0

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