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From:   Barry Byford <31baz66@gmail.com>
Date:   Fri, 5 Jul 2019 08:29:16 +0100
Message-ID: <CAAu3APaed3UXY646Vr+2WyKhFRoohDV=7=aeD6sANf9N4BJw-A@mail.gmail.com>
Subject: Re: Missing manual? - GAP Central connecting to multiple peripherals.
To:     John Whitmore <arigead@gmail.com>
Cc:     Bluez mailing list <linux-bluetooth@vger.kernel.org>
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Hello John,

There are various Python examples available in the tree under the test
directory:
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/test

There are a number of Python libraries that have been implemented to
help with what you are looking to do.
There is a list of some of them at:
https://github.com/ukBaz/python-bluezero/wiki

I hope that helps.

Regards,
Barry

On Thu, 4 Jul 2019 at 22:32, John Whitmore <arigead@gmail.com> wrote:
>
> BLE at the wrong end of a learning curve and trying to piece things together.
>
> Perhaps I could just give a rough outline of the project. I want a Linux
> device to listen for advertisements from a particular BLE sensor and connect
> to those sensors, as and when they appear. Once connected, the Linux device
> can send commands to the sensor, to turn on/off an LED or request sensor data
> from each of the connected sensors.
>
> The Linux kernel is 4.15 is an Ubuntu 16.04 based system.
>
> I was looking at the latest bluez-5.50 doc directory but didn't see a file for
> gap.txt, but adapter-api.txt looks like the API I'm looking for.
>
> I'm trying to do this from Python, so currently thinking of using DBus
> interface, another learning curve to address.
>
> So after all that a specific bluex questions. I'm missing things, and possibly
> incorrectly assuming that I need a certain kernel specified for bluez5.50, but
> can't see any mention of versions of bluez relating to versions of kernel.
>
> Secondly bluez-5.50 appears to be building an applicaiton, so I assume that
> application has to be running to interface to Linux Kernel bluetooth stack and
> handle the DBus API. So bluez should be a system service just started on
> powerup?
>
> Thanks for any help, I get the impression that this list is predominately for
> guts of the Linux Kernel's bluetooth stack, but user side list is hard to
> find.
>
> Thanks again
>
> John