Does anyone have any advice on how to use Bluetooth LE with Delphi Berlin, targeting Windows? The ExploreDevicesLE sample application works fine for me on iOS, Android and OSX, but doesn't work at all on Windows. I believe the problem is that under Windows, the StartDiscovery method returns right away (the DocWiki says so) and so devices never seem to get enumerated. If this is the case, how can I enumerate available Bluetooth LE devices in Windows?

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Does anyone have any advice on how to use Bluetooth LE with Delphi Berlin, targeting Windows? The ExploreDevicesLE sample application works fine for me on iOS, Android and OSX, but doesn't work at all on Windows. I believe the problem is that under Windows, the StartDiscovery method returns right away (the DocWiki says so) and so devices never seem to get enumerated. If this is the case, how can I enumerate available Bluetooth LE devices in Windows?
TIA. - Scott

Comments

  1. Maciej WierzbowskiNovember 27, 2016 at 3:46 PM

    I guess that your computer doesn't have Bluetooth LE. It is popular in mobile devices but not in laptops. Usually BLE comes with Bluetooth 4.0. Does your computer contains BT 4.0 and it has installed correct drivers?

    ReplyDelete
  2. Scott PinkhamNovember 27, 2016 at 3:50 PM

    My PC does have Bluetooth LE and is able to pair with LE devices.

    ReplyDelete
  3. Lars FosdalNovember 27, 2016 at 9:46 PM

    Scott Pinkham Make and model?

    ReplyDelete
  4. Christen Blom-DahlNovember 27, 2016 at 10:42 PM

    Bluetooth LE Is only available on Windows 8 or newer versions of Windows. Also, If you are using Parallels under OSX, the Parallels Bluetooth bridge between Windows and OSX does not support Bluetooth LE.

    ReplyDelete
  5. Scott PinkhamNovember 28, 2016 at 8:30 AM

    The problem is only with Delphi programs running on Windows -- not with my PC, as Bluetooth LE works fine on my PC otherwise. Under Windows the Delphi BluetoothLE component reports that the PC does support Bluetooth. The problem is the Bluetooth LE implementation in Delphi under Windows doesn't seem to enumerate devices -- DiscoverDevices() returns immediately (see http://docwiki.embarcadero.com/Libraries/Berlin/en/System.Bluetooth.Components.TBluetoothLE.DiscoverDevices) on Windows. On all other platforms it does go out and enumerate devices and generate OnDiscoverLEDevice events, while on Windows I never see the OnDiscoverLEDevice events.
    docwiki.embarcadero.com - System.Bluetooth.Components.TBluetoothLE.DiscoverDevices - RAD Studio API Documentation

    ReplyDelete
  6. Scott PinkhamNovember 28, 2016 at 8:38 AM

    Looks like I found the problem -- on Windows you have to pair the devices in advance. See community.embarcadero.com - Bluetooth LE on Win32 or Win64

    They should add this info to the docwiki.

    ReplyDelete

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