Bristol and Bath Linux: Bristol Digest, Vol 667, Issue 7

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Today's Topics:

1. Linux Voice Gone to Linux Magazine (Peter Hemmings)
2. Re: Linux Voice Gone to Linux Magazine (Sebastian)
3. Re: Capacitive switch test (Andrew)
4. Re: Capacitive switch test (David)
5. Re: Linux Voice Gone to Linux Magazine (Nigel Sollars)

----------------------------------------------------------------------

Message: 1
Date: Thu, 27 Oct 2016 17:33:47 +0100
From: Peter Hemmings <peternsomerset@virginmedia.com>
To: BBLUG <Bristol@mailman.lug.org.uk>
Subject: [bristol] Linux Voice Gone to Linux Magazine
Message-ID: <31a88577-5a16-b649-1739-085bbfc6116f@virginmedia.com>
Content-Type: text/plain; charset=utf-8; format=flowed

What a shame, but it did not make a profit to give 50% away!!

Still 3 of them are keeping together.

--
Peter H

------------------------------

Message: 2
Date: Thu, 27 Oct 2016 17:43:43 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: <bristol@mailman.lug.org.uk>, <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Linux Voice Gone to Linux Magazine
Message-ID: <4038f401-2afe-4b91-9735-3e5b0c05a390@gmx.com>
Content-Type: text/plain; charset=utf-8; format=flowed

On Thursday, 27 October 2016 17:33:47 BST, Peter Hemmings via Bristol
<bristol@mailman.lug.org.uk> wrote:
> What a shame, but it did not make a profit to give 50% away!!
>
> Still 3 of them are keeping together.
>
>

I just been reading that as well in a email from them. Indeed it's ashame
really, but at least the other ones, have DVD's, Linux User & Developer,
Linux Magazine, and Linux Format. Also via Linux Magazine they will be in
standard shops such as W H Smith, I don't think Linux Voice ever ended up
on sale in such shops. Going back to the DVD's it was ashame when they
decided to get rid of them, but yes it's costs to have a DVD with an issuse
of a magazine, looks like with Linux Magazine (going by the email), it's a
pay if wanting a DVD.

Linux Voice had a nice general idea of how the magazine would be done, but
I guess it's easier to be commercial when doing a magazine, and if going to
make a profit as well.

--
Sent using Dekko from my Ubuntu device

------------------------------

Message: 3
Date: Thu, 27 Oct 2016 18:58:07 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Steve Netting <steve@track3.org.uk>, Bristol and Bath Linux User
Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Capacitive switch test
Message-ID: <8b959ac0-2182-7344-6ef3-257dd4ec63ba@1dtv.com>
Content-Type: text/plain; charset=utf-8; format=flowed

On 27/10/16 11:42, Steve Netting via Bristol wrote:
> <snip>
>
>> Hi Steve.
>>
>> Little capacitive switch on the front of a pc speaker to raise or lower
>> volume. Seems to be dead. Single connection on the back. My question is
>> whether just earthing the connection would tell the unit the same as
>> touching the switch would. (If I am not using the right language that
>> probably explains why my googling is getting nowhere.)
>>
>
> Just found this - using capacitance to adjust the frequency of an RC
> circuit:-
>
> http://pcbheaven.com/wikipages/How_a_Touch_Button_works/?p=1
>
> I still tend to think of the capacitance (from touch) appearing as a
> value between two points on the touch switch (or between switch and
> case/ground).
>
> But regardless, my suggestion to add a small capacitor between 'the
> wire' and ground would likely work in either edge timing or frequency
> detection methods.
>
> Interesting article here:-
>
> https://en.wikipedia.org/wiki/Body_capacitance
>
> :)
>
>
> Steve
Thanks for all this Steve.

Reading this:

"But if the sensor is touched, it will have a larger capacitance, and it
will absorb more charge from the internal capacitor." --- which 'sets it
off'.

I am assuming that earthing it should work because I assume the
capacitance of earth should be very high. That was what I intuited which
made me think of trying out just earthing the one connector, in the hope
the system would respond. It does not, so I am now assuming it is more
broken than just the little switch. (My practical physics is very rusty
and I never did study electrical engineering.)

Andrew

------------------------------

Message: 4
Date: Thu, 27 Oct 2016 19:20:19 +0100
From: David <david@avoncliff.com>
To: bristol@mailman.lug.org.uk
Subject: Re: [bristol] Capacitive switch test
Message-ID: <58124563.3070208@avoncliff.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

On 26/10/16 20:07, Andrew via Bristol wrote:
> Hi
>
> I have a capacitive switch I want to test. I have googled a fair bit but
> cannot find a simple answer. Will simply earthing the feed wire to the
> switch do the trick? (I have a harman kardon base unit not working, and
> the volume switches on the satellite are suspect.) Apologies not linux
> of course but I figure this is a super simple question for the cognoscenti.
>
> Andrew
>
I do not think an earth wire will do anything. A finger is what you
need, and if touching with a finger does nothing it is broken.
David

------------------------------

Message: 5
Date: Thu, 27 Oct 2016 16:07:49 -0400
From: Nigel Sollars <nsollars@gmail.com>
To: Sebastian <sebsebseb_mageia@gmx.com>, Bristol and Bath Linux User
Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Linux Voice Gone to Linux Magazine
Message-ID:
<CAG6aBkXMAN2Y5-yQds8uqsDDUDO0Qf4fs9cN9CTKd6wWixsomg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Was an interesting idea for certain,

How times have changed though from the likes of the 80's with Crash
Magazine and or ZZAP64, only to be followed by Atari / Commodore User and
ilk. I think you could probably call those 'The Magazine Hay Day', I am
sure the explosion of the interwebs has done other mediums no favors.

That also goes for brick and mortar stores..

Nige

On Thu, Oct 27, 2016 at 12:43 PM, Sebastian via Bristol <
bristol@mailman.lug.org.uk> wrote:

>
>
> On Thursday, 27 October 2016 17:33:47 BST, Peter Hemmings via Bristol <
> bristol@mailman.lug.org.uk> wrote:
>
>> What a shame, but it did not make a profit to give 50% away!!
>>
>> Still 3 of them are keeping together.
>>
>>
>>
> I just been reading that as well in a email from them. Indeed it's ashame
> really, but at least the other ones, have DVD's, Linux User & Developer,
> Linux Magazine, and Linux Format. Also via Linux Magazine they will be in
> standard shops such as W H Smith, I don't think Linux Voice ever ended up
> on sale in such shops. Going back to the DVD's it was ashame when they
> decided to get rid of them, but yes it's costs to have a DVD with an issuse
> of a magazine, looks like with Linux Magazine (going by the email), it's a
> pay if wanting a DVD.
>
> Linux Voice had a nice general idea of how the magazine would be done, but
> I guess it's easier to be commercial when doing a magazine, and if going to
> make a profit as well.
>
>
> --
> Sent using Dekko from my Ubuntu device
>
>
> _______________________________________________
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