For the needs of a university project I have to connect my Macbook Air to a Bluetooth LE device (an air pollution sensor). When looking for nearby devices my Mac cannot find this sensor device and probably the reason is that it uses Bluetooth LE.
Do you know what kind of drivers or special framework do I need to connect to this device using Bluetooth LE?
You won't be able to find BLE devices in your Bluetooth device search. In order to find the devices you are going to have write code in objective C using the CoreBluetooth framework. Also you need to make sure your Air supports BLE. I believe the early ones don't.
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I am quite new to KaiOS and was wondering if it is possible to build an app that sends / receives serial communications (for instance communicate with Arduino) over a physical cable connected to the phone.
I am currently doing it on Android using this library https://github.com/mik3y/usb-serial-for-android, and would love to do it on KaiOS.
I looked at the permissions and see that there is nothing related (https://developer.kaiostech.com/core-developer-topics/permissions) but I did not find any info saying that it is possible (or not possible) to do it
If not possible, any idea of how to do Serial communication between a feature phone and an Arduino is welcomed !
Thanks for you help !
Nope. KaiOS phones do not support USB Host mode.
I've tried plugging USB mouse and keyboard in Nokia 2720 using USB OTG cable, the phone did not even provide +5V power to the USB port (my keyboard lights up LED if I plug it into USB charger)
Likewise, Bluetooth is limited to headphones, my Bluetooth mouse and Bluetooth gamepad did not work.
I try to connect to a BLE device using Qt. But I don't know why my used tool doesn't find my device.
Used tool: https://github.com/Gawhary/Qt-BLE-Tester
Best regards
Qt don't suport bluetooth BLE on windows. doc.qt.io/qt-5/qtbluetooth-le-overview.html only on mac and linux.
If you want BLE suport look here. https://forum.qt.io/topic/60288/does-qt-support-bluetooth-low-energy-under-windows-10
Qt supports Bluetooth Low Energy on Windows 10 as Central when developing UWP (WinRT) Apps since Qt5.8
There is no Bluetooth Low Energy support for classic Windows applications as specified on their documentation.
I am trying to connect a Bluetooth Low Energy enabled MIDI hardware to wirelessly send data to a Windows PC and get it to detect as a MIDI device in Windows. Currently, the device is able to pair with my Windows 10 laptop and I am able to read the incoming data off of it.
The same hardware is configured and working fine as a wireless MIDI device on Mac and iOS devices(which natively supports MIDI over Bluetooth). I am trying to get this feature implemented on Windows(which doesn't support MIDI over Bluetooth, although it was promised in Windows 10).
The device, when is paired, is showing up in the 'Bluetooth devices' section in device manager, I am trying to make this device showing up as a MIDI device in 'Sound, video and game controllers' section.
Any help/resources somebody can provide to help me crack this problem is highly appreciated.
Following is my current thought process to implement this.
Pair the device and read the data off of it. (Already implemented)
Create a virtual MIDI port. (Don't know how to implement this, I am currently checking out rtpMIDI)
Send the MIDI data which was read from the BLE device to the virtual MIDI port. (Still don't know how to implement this)
Any suggestions/comments on the above thought process as I am absolutely new to Windows Driver Development.
How can I create an iBeacon on a windows 7 PC with Smart Bluetooth 4.0 integrated with the Wi-Fi, I.e not a separate dongle. I'd rather not look at other OS's as the device also has to run an Adobe air application at the same time.
Thanks
Mike
Sorry, but you cannot natively make a Bluetooth LE-equipped Windows 7/8/8.1 computer broadcast as an iBeacon. The operating system is limited in its BLE support to allowing third party apps to work with a limited number of BLE profiles. More details are available here in this question about Windows phone, but the info also applies to the desktop Windows OS:
iBeacon support for Windows Phone devices. Support is expected to be added in Windows 10 in late 2015.
Until then, your options are limited to a Linux VM or to a hardware dongle with native iBeacon support.
As David pointed out, there is no API available for working with iBeacons until Windows 10.
If you don't need any other Bluetooth connectivity, you can replace the Bluetooth driver with a libusb driver and use your own Bluetooth stack which adds support for iBeacon. You can check out open-source libraries like BlueZ and btstack and make the HCI layer work. On top of that you can implement/port the BLE advertisement and discovery HCI commands and you have all you need for working with iBeacons.
I'm trying to create a virtual bluetooth keyboard client for Mac OS. that means my Mac will serve as a BT KB. I read about the bluetooth API in OS X (in ObjC), and I also found an HID API for Mac (in C)
To make this work I understand I need to declare an hid-keyboard-service that should be broadcasted on SDP queries.
if I declare an HID service using the HID API, is my service visible/broadcasted on Bluetooth too? (the documents seems to refer to HID with regards to USB only). - are HID services visible on both bluetooth and USB interfaces, and the underlaying connection is transparent to me?
is there any code that will help me with this you know about? I prefer ObjC, but it seems HID API is C only... :(
Thanks...!
As far as I understand it, a HID device driver represents a device locally to the OS, and by the OS, to various other components. It is not used to "broadcast" on USB nor on Bluetooth. As far as I know, OS X does not include a Bluetooth HID service, and neither does OS X nor the USB chipsets in Macs support USB device mode -- or at least they do not expose it.
You will want to write a Bluetooth service. I have not done that, but the documentation seems extensive. From what I understand, you would somehow have to implement your HID service based on the underlying Bluetooth L2CAP transmission protocol.
Since I have studied neither Bluetooth, nor Bluetooth support under Mac, I am unable to provide any more help. I did take a look at HID protocol specs, and even played with them. HID is relatively trivial to implement, but there will be quite a bit of work on implementing the Bluetooth service first.
It seems similar tools exist for linux and may have usable source code. See this thread for links.