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Bluetooth abd Android

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  • PollyP Offline
    PollyP Offline
    Polly
    wrote on last edited by
    #1

    I need to connect a Bluetooth device hc-05 to a samsung android galaxy a20 cellphone and i would like to know which classes would be more appropriate to use if those of qml or c ++? Since I tried to compile an application for the Samsung Galaxy with the example ones but it didn't seem to locate any devices. when I set hc05 as master the internal bluetooth of the Samsung you have identified it immediately.

    Pl45m4P 1 Reply Last reply
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    • PollyP Polly

      I need to connect a Bluetooth device hc-05 to a samsung android galaxy a20 cellphone and i would like to know which classes would be more appropriate to use if those of qml or c ++? Since I tried to compile an application for the Samsung Galaxy with the example ones but it didn't seem to locate any devices. when I set hc05 as master the internal bluetooth of the Samsung you have identified it immediately.

      Pl45m4P Offline
      Pl45m4P Offline
      Pl45m4
      wrote on last edited by
      #2

      @Polly said in Bluetooth abd Android:

      qml or c ++

      Both ways work. Depends on what you want to do.

      • https://doc.qt.io/qt-5/qtbluetooth-index.html

      @Polly said in Bluetooth abd Android:

      Since I tried to compile an application for the Samsung Galaxy with the example ones but it didn't seem to locate any devices

      Does your app work at all (-> BluetoothDeviceDiscovery etc...)?

      Here is a good tutorial which, I think, is exactly showing what you are trying to achieve


      If debugging is the process of removing software bugs, then programming must be the process of putting them in.

      ~E. W. Dijkstra

      PollyP 1 Reply Last reply
      1
      • Pl45m4P Pl45m4

        @Polly said in Bluetooth abd Android:

        qml or c ++

        Both ways work. Depends on what you want to do.

        • https://doc.qt.io/qt-5/qtbluetooth-index.html

        @Polly said in Bluetooth abd Android:

        Since I tried to compile an application for the Samsung Galaxy with the example ones but it didn't seem to locate any devices

        Does your app work at all (-> BluetoothDeviceDiscovery etc...)?

        Here is a good tutorial which, I think, is exactly showing what you are trying to achieve

        PollyP Offline
        PollyP Offline
        Polly
        wrote on last edited by
        #3

        @Pl45m4
        Thank you very much for all

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        • PollyP Offline
          PollyP Offline
          Polly
          wrote on last edited by
          #4

          I give an update of my tests.

          I tried using what was said in the video and documentation.
          And I first noticed that setting the Hc05 module in master mode is recognized by the device for which I forced the address but the software compiled on android 10 and 7 does not work, that is, it does not recognize it.
          So it's better to set it as a slave.
          At this point, using only qml code, the device is not detected by Android 7 or 10.
          On the other hand those that are written in C ++ are envied only by Android 7 while the 10 finds nothing. I also tried to compile with different versions such as 5.12,5.13,5.14,5.15 same result.

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