Minggu, 29 September 2013

Bristol Digest, Vol 518, Issue 7

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Today's Topics:

1. Richard Stalllman talk Live right now (Sebastian)
2. Re: Richard Stalllman talk Live right now (Dan Dart)
3. Re: Richard Stalllman talk Live right now (Sebastian)
4. Re: Richard Stalllman talk Live right now (Sebastian)
5. Re: Richard Stalllman talk Live right now (Sebastian)


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

Message: 1
Date: Sat, 28 Sep 2013 22:37:19 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: [bristol] Richard Stalllman talk Live right now
Message-ID: <52474C0F.4030800@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Not sure if anyone will see this or not in time, that may be interested,
but Richard Stallman speaking Live right now as part of the GNU 30th
anniversury celebration: http://live.fsf.org/gnu30.ogv I guess a video
or more will be up later.

If it wasn't for Richard Stallman, well lot's of things wouldn't of
happended!



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

Message: 2
Date: Sat, 28 Sep 2013 23:11:07 +0100
From: Dan Dart <lug@dandart.co.uk>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Richard Stalllman talk Live right now
Message-ID: <0616920a80ddb3ae3437900ea5877bbd@mail.dandart.co.uk>
Content-Type: text/plain; charset=UTF-8; format=flowed

> the GNU 30th anniversury celebration: http://live.fsf.org/gnu30.ogv

I got a 404...

---
Dan Dart
Coder, SysAdmin, Musician
dandart.co.uk



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

Message: 3
Date: Sat, 28 Sep 2013 23:22:15 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Richard Stalllman talk Live right now
Message-ID: <52475697.9030800@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 28/09/13 23:11, Dan Dart wrote:
>> the GNU 30th anniversury celebration: http://live.fsf.org/gnu30.ogv
>
> I got a 404...
Yeah it finished or the stream went down again, about 25 minutes or so
ago. Was ok a usual Stallman message, with an auction at the end.
>
> ---
> Dan Dart
> Coder, SysAdmin, Musician
> dandart.co.uk
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol




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

Message: 4
Date: Sun, 29 Sep 2013 02:15:25 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Richard Stalllman talk Live right now
Message-ID: <52477F2D.4040604@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Richard Stallman talk already online and a John Sulilivan one, in
unofficial videos. Will be better much better when the offical videos
are online properly!



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

Message: 5
Date: Sun, 29 Sep 2013 02:17:59 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Richard Stalllman talk Live right now
Message-ID: <52477FC7.1080107@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Richard Stallman talk already online and a John Sullivan one, in
unofficial videos. Will be better when the offical videos are online
properly!



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

_______________________________________________
Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol

End of Bristol Digest, Vol 518, Issue 7
***************************************

Kamis, 26 September 2013

Bristol Digest, Vol 518, Issue 6

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

To subscribe or unsubscribe via the World Wide Web, visit
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You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. Re: Controlling valves (Matt Oates (Home))
2. Re: Controlling valves (Andrew)
3. Re: Controlling valves (Andrew)
4. Re: Controlling valves (Allen Coates)
5. Re: Controlling valves (John Daragon)


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

Message: 1
Date: Thu, 26 Sep 2013 18:16:18 +0100
From: "Matt Oates (Home)" <mattoates@gmail.com>
To: andrew@1dtv.com, Bristol and Bath Linux User Group
<bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID:
<CAAiD7uO83skG0Dz8Txh-r55jBpdwc1-23zL3Ghr1=18QPK_OEA@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Hi,

On 26 September 2013 15:36, Andrew <andrewsoltau@gmail.com> wrote:
> Any thoughts on pi vs arduino?

With the Pi someone said "port later to the Pi", it's just a Linux
desktop and you can run a relatively normal version of Debian on
there. If you are wanting to use C on the Pi I see nothing but
heartache with developing on PC then essentially reimplementing for
the Pi, with no upside. Just develop directly on the Pi if that's your
end goal. Oracle have even released a custom JVM that makes use of the
Pi's floating point hardware, since you mentioned Java programming.
I've been running a Minecraft server as a demo with reasonable
performance off of a Pi with the Oracle JVM. Personally I would use
Python as it's well supported with demo code and libraries for the Pi
including the GPIO pins. If all you are going to do is essentially
send the switch state to the valve why bother with mucking around in C
when it's a few lines of Python?

I'd personally use the Pi over an Arduino or anything fully embedded.
The Pi is cheap and does everything you need in a way that will be
familiar if you are a desktop developer. Any argument of whether you
need the computational power and if you should go Pi or Arduino... who
cares? If you have a real constraint like running off of a battery for
a decade then sure you want something lower power and fully embedded.
Arduino starter kits and a Pi cost about the same. If you suddenly
need more IO lines just get a multiplexer for the Pi, off the shelf
products like this exist already.

I'm going to throw out mbed (http://mbed.org) as another hobbyist
embedded option since you get quite a lot in a single package. The
mbed development process/environment is incredibly friendly to someone
new to embedded programming too.

Best,
Matt



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

Message: 2
Date: Thu, 26 Sep 2013 19:30:06 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52447D2E.1090900@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 16:29, Alaric Snell-Pym wrote:
> On 26/09/13 15:59, david wrote:
>
>>> Any thoughts on pi vs arduino?
>>>
>> Well I would go raspberry, because extra features might be handy one
>> day. Much easier to do remote control from your phone, and networking in
>> general. And I have found the i/o control easy to use from C.
>> But if it will always be a stand alone box, with simple push button
>> control then arduino is good and has lots of support for hardware projects.
>>
> I'd second that.
>
> 1) You'll be able to get going quicker on the arduino - less
> infrastructure. All the tools required to start waving I/O lines about
> are there in the standard setup.
>
> 2) Smaller, simpler, cheaper, lower-power device to put into your final
> project
>
> 3) Lots of easily accessible I/O lines, off the shelf "shields" to do
> stuff like driving relays or high-current driver transistors
>
> I assumed, with your talk of prototyping on a PC then using a Pi, you
> were going to be requiring beefy computer resources such as filesystem
> mass storage, networking, or video output - otherwise I'd have suggested
> the arduino too!
>
> ABS
>
Brill

Thanks
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Message: 3
Date: Thu, 26 Sep 2013 19:38:13 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52447F15.1040300@1dtv.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

On 26/09/13 15:59, david wrote:
> On 26/09/13 15:36, Andrew wrote:
>> Hi David
>>
>> On 26/09/13 15:21, david wrote:
>>> It depends on the scale, I am doing a lot of this commercially using
>>> Labview.
>>> That is a expensive National Instruments product.
>> Looking at their site this looks great.
>>> But some years ago they did give away a Linux version, which can still
>>> be downloaded from a German site. It is good and powerful, but has
>>> quite a learning curve.
>> That sounds ideal. But a bit of googling only turned up this forum post
>> which concluded there was nothing like that available:
>>
>> http://forums.ni.com/t5/LabVIEW/from-where-can-i-donwload-labview-for-Ubuntu-10-04/td-p/1250354
>>
>>
> http://forums.ni.com/t5/LabVIEW/labview-6-1-linux/td-p/1741200
> Says it is official, but only for home use in Germany, I would check
> the license on the download.
> ftp://ftp.heise.de/pub/ct/spezial/labviewlinux.zip? is working
Brilliant. I have downloaded it and will get to work.
>
>>> Labjack do some interface boxes with labview drivers for < ?100
>> That sounds just the job.
>>>
>>> However I would recommend starting on the Raspberry, looking at the
>>> home robotics shops, and use Python or any language you are happy with.
>>> David
>> Thanks
>>
>> Any thoughts on pi vs arduino?
>>
> Well I would go raspberry, because extra features might be handy one
> day. Much easier to do remote control from your phone, and networking
> in general. And I have found the i/o control easy to use from C.
> But if it will always be a stand alone box, with simple push button
> control then arduino is good and has lots of support for hardware
> projects.
Thanks for all this. Stand alone box is the objective. Given it is much
easier to set up, and my considerable inexperience, I think maybe it
makes sense to go for the arduino for the first cut; then if the project
requires more iterations I can graduate to raspberry. The big thing at
the outset is to get it working and try out the idea.

Andrew






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Message: 4
Date: Thu, 26 Sep 2013 20:06:45 +0100
From: Allen Coates <linux@cidercounty.org.uk>
To: andrew@1dtv.com, Bristol and Bath Linux User Group
<bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <524485C5.3040601@cidercounty.org.uk>
Content-Type: text/plain; charset=ISO-8859-1

Hi Andrew

A project in the brand new "Raspberry Pi Geek" magazine uses an Arduino
flow meter; it monitors the RPM of an impeller in a short length of
pipe-work.

There are several other items about interfacing a Pi with the outside
world - you may find them useful.

If it is only "windscreen washer stuff", how about using an actual
windscreen washer pump with a relay-controlled 12 volt supply?

Just my two pence worth.

Allen C


Andrew wrote:
> Hi All
>
> I have been asked to do a project which involves using the pc to turn on
> and off some valves with reasonably accurate timing. I would be grateful
> if someone could point me in the right direction. I have done some
> googling but the subject seems to be massive and lots about robotics and
> nothing terribly simple. Terribly simple is what I am after!
>
> Firstly, what sort of software does one use for this? And where do I get
> the control valves - I assume I don't go to maplin, or is that the
> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
> be quite small bore, like windscreen washer stuff. Might need to use a
> passed volume sensor / flow meter / however one does that.
>
> This would all get prototyped on a standard pc with Debian. The final
> objective is a using a raspberry pi with simple go buttons to set off
> different sequences of operations.
>
> Cheers
>
> Andrew
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol




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

Message: 5
Date: Thu, 26 Sep 2013 17:43:05 -0400
From: John Daragon <john@blacklabs.co.uk>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
"andrew@1dtv.com" <andrew@1dtv.com>
Subject: Re: [bristol] Controlling valves
Message-ID:
<33F8E65C8ED54C4DA5074F1764532157D03F39D2CD@EXMBX01.njnx.lan>
Content-Type: text/plain; charset="iso-8859-1"

Sorry about top-posting - It's Outlook.

In this case, depending on flow rate, temperature &c, and the available power supply, I think you could do worse than :

http://www.ebay.co.uk/bhp/electric-water-valve

or

http://www.betavalve.com/plastic/appliance

You can get a solid-state mains relay for around a fiver.

I'd go for the RPi. Comms is easier, and if it's attached to a network, you'll always be able to work out what the time is. And it'll almost certainly be cheaper than using an *uino if you need Ethernet.

If you really want to use a PC, and yours is old enough, you can use some of the pins on the parallel port as surrogate GPIO pins:

http://as6edriver.sourceforge.net/Parallel-Port-Programming-HOWTO/parallel-port-programming-howto.html

If you have a spare serial port, you can use the handshake pins, too.

Pulsed flow-meter sensors rated at various temperatures and calibrated for various flow rates seem to be around for ~ ?15 a throw. Again, eBay is your friend. This is a bit more complex, as you'll need to write a little interrupt handler to count how many pulses you get in a unit time - unless you pass the responsibility for timing up the stack and just set your count to zero on open...

jd

-----Original Message-----
From: bristol-bounces@mailman.lug.org.uk [mailto:bristol-bounces@mailman.lug.org.uk] On Behalf Of Allen Coates
Sent: 26 September 2013 20:07
To: andrew@1dtv.com; Bristol and Bath Linux User Group
Subject: Re: [bristol] Controlling valves

Hi Andrew

A project in the brand new "Raspberry Pi Geek" magazine uses an Arduino flow meter; it monitors the RPM of an impeller in a short length of pipe-work.

There are several other items about interfacing a Pi with the outside world - you may find them useful.

If it is only "windscreen washer stuff", how about using an actual windscreen washer pump with a relay-controlled 12 volt supply?

Just my two pence worth.

Allen C


Andrew wrote:
> Hi All
>
> I have been asked to do a project which involves using the pc to turn
> on and off some valves with reasonably accurate timing. I would be
> grateful if someone could point me in the right direction. I have done
> some googling but the subject seems to be massive and lots about
> robotics and nothing terribly simple. Terribly simple is what I am after!
>
> Firstly, what sort of software does one use for this? And where do I
> get the control valves - I assume I don't go to maplin, or is that the
> simplest way? Pressures are quite low, 10 psi or so, and the pipes
> will be quite small bore, like windscreen washer stuff. Might need to
> use a passed volume sensor / flow meter / however one does that.
>
> This would all get prototyped on a standard pc with Debian. The final
> objective is a using a raspberry pi with simple go buttons to set off
> different sequences of operations.
>
> Cheers
>
> Andrew
>
>
> ----------------------------------------------------------------------
> --
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol


_______________________________________________
Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol



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

_______________________________________________
Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol

End of Bristol Digest, Vol 518, Issue 6
***************************************

Bristol Digest, Vol 518, Issue 5

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.lug.org.uk/mailman/listinfo/bristol
or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
bristol-owner@mailman.lug.org.uk

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. Re: Controlling valves (David Smith)
2. Re: Controlling valves (David Smith)
3. Re: Controlling valves (Andrew)
4. Re: Controlling valves (Andrew)
5. Re: Controlling valves (david)
6. Re: Controlling valves (Alaric Snell-Pym)
7. Re: Controlling valves (Administrator)


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

Message: 1
Date: Thu, 26 Sep 2013 15:40:31 +0100
From: David Smith <Dave.Smith@st.com>
To: <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <5244475F.3020709@st.com>
Content-Type: text/plain; charset="ISO-8859-1"

On 09/26/13 15:37, Andrew wrote:
> Ok. Thanks. My only experience of writing drivers was at low level for
> some hot swap RAID boxes and it got ferociously complex very quickly!

That's why I think Arduino is your best bet - the underlying "complex"
stuff is already wrapped up by the programming environment so you can
just focus on what you actually want to achieve.





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

Message: 2
Date: Thu, 26 Sep 2013 15:47:45 +0100
From: David Smith <Dave.Smith@st.com>
To: <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52444911.9090706@st.com>
Content-Type: text/plain; charset="ISO-8859-1"

On 09/26/13 15:31, Andrew wrote:
> It is for a long term use; and reliability is an issue once it is up and
> running. It's all very low key. Low pressures, not a lot of on and offs.
> I assume relays would be ok.

In which case, if you're going to use relays, check their operational
lifetime. Let's say you're going to operate them once every 5 seconds,
24 hours a day. That's over 6 million operations per year, and is well
beyond the MTBF of many relays.



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

Message: 3
Date: Thu, 26 Sep 2013 15:57:04 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52444B40.10900@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 15:40, David Smith wrote:
> On 09/26/13 15:37, Andrew wrote:
>> Ok. Thanks. My only experience of writing drivers was at low level for
>> some hot swap RAID boxes and it got ferociously complex very quickly!
> That's why I think Arduino is your best bet - the underlying "complex"
> stuff is already wrapped up by the programming environment so you can
> just focus on what you actually want to achieve.
>
>
Thanks

Sounds like just what I'm looking for.

Andrew


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Message: 4
Date: Thu, 26 Sep 2013 15:58:13 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52444B85.3050907@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 15:47, David Smith wrote:
> On 09/26/13 15:31, Andrew wrote:
>> It is for a long term use; and reliability is an issue once it is up and
>> running. It's all very low key. Low pressures, not a lot of on and offs.
>> I assume relays would be ok.
> In which case, if you're going to use relays, check their operational
> lifetime. Let's say you're going to operate them once every 5 seconds,
> 24 hours a day. That's over 6 million operations per year, and is well
> beyond the MTBF of many relays.
>
> _______________________________________________
Cheers

They won't be getting that kind of use. We just want to automate a
simple but tedious routine of operations that will be carried out a few
times a day at most.

Andrew


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Message: 5
Date: Thu, 26 Sep 2013 15:59:57 +0100
From: david <david@avoncliff.com>
To: bristol@mailman.lug.org.uk
Subject: Re: [bristol] Controlling valves
Message-ID: <52444BED.8060005@avoncliff.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

On 26/09/13 15:36, Andrew wrote:
> Hi David
>
> On 26/09/13 15:21, david wrote:
>> It depends on the scale, I am doing a lot of this commercially using
>> Labview.
>> That is a expensive National Instruments product.
> Looking at their site this looks great.
>> But some years ago they did give away a Linux version, which can still
>> be downloaded from a German site. It is good and powerful, but has
>> quite a learning curve.
> That sounds ideal. But a bit of googling only turned up this forum post
> which concluded there was nothing like that available:
>
> http://forums.ni.com/t5/LabVIEW/from-where-can-i-donwload-labview-for-Ubuntu-10-04/td-p/1250354
>
http://forums.ni.com/t5/LabVIEW/labview-6-1-linux/td-p/1741200
Says it is official, but only for home use in Germany, I would check the
license on the download.
ftp://ftp.heise.de/pub/ct/spezial/labviewlinux.zip? is working

>> Labjack do some interface boxes with labview drivers for < ?100
> That sounds just the job.
>>
>> However I would recommend starting on the Raspberry, looking at the
>> home robotics shops, and use Python or any language you are happy with.
>> David
> Thanks
>
> Any thoughts on pi vs arduino?
>
Well I would go raspberry, because extra features might be handy one
day. Much easier to do remote control from your phone, and networking in
general. And I have found the i/o control easy to use from C.
But if it will always be a stand alone box, with simple push button
control then arduino is good and has lots of support for hardware projects.




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

Message: 6
Date: Thu, 26 Sep 2013 16:29:53 +0100
From: Alaric Snell-Pym <alaric@snell-pym.org.uk>
To: bristol@mailman.lug.org.uk
Subject: Re: [bristol] Controlling valves
Message-ID: <524452F1.1020405@snell-pym.org.uk>
Content-Type: text/plain; charset="utf-8"

On 26/09/13 15:59, david wrote:

>> Any thoughts on pi vs arduino?
>>
> Well I would go raspberry, because extra features might be handy one
> day. Much easier to do remote control from your phone, and networking in
> general. And I have found the i/o control easy to use from C.
> But if it will always be a stand alone box, with simple push button
> control then arduino is good and has lots of support for hardware projects.
>

I'd second that.

1) You'll be able to get going quicker on the arduino - less
infrastructure. All the tools required to start waving I/O lines about
are there in the standard setup.

2) Smaller, simpler, cheaper, lower-power device to put into your final
project

3) Lots of easily accessible I/O lines, off the shelf "shields" to do
stuff like driving relays or high-current driver transistors

I assumed, with your talk of prototyping on a PC then using a Pi, you
were going to be requiring beefy computer resources such as filesystem
mass storage, networking, or video output - otherwise I'd have suggested
the arduino too!

ABS

--
Alaric Snell-Pym
http://www.snell-pym.org.uk/alaric/

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Message: 7
Date: Thu, 26 Sep 2013 17:56:06 +0100
From: Administrator <administrator@startext.co.uk>
To: andrew@1dtv.com, Bristol and Bath Linux User Group
<bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52446726.5030608@startext.co.uk>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 26/09/13 14:40, Andrew wrote:

> I have been asked to do a project which involves using the pc to turn on
> and off some valves with reasonably accurate timing. I would be grateful
> if someone could point me in the right direction.

Mmm.

Which country are you planning on paralysing, did you say ?
--
Martin Wheeler - Glastonbury - England
mwheeler @ startext.co.uk
http://martinwheeler.co.uk/



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

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End of Bristol Digest, Vol 518, Issue 5
***************************************

Bristol Digest, Vol 518, Issue 4

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Today's Topics:

1. Re: Controlling valves (David Smith)
2. Re: Controlling valves (Andrew)
3. Re: Controlling valves (Andrew)
4. Re: Controlling valves (Andrew)


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

Message: 1
Date: Thu, 26 Sep 2013 15:31:07 +0100
From: David Smith <Dave.Smith@st.com>
To: <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <5244452B.20804@st.com>
Content-Type: text/plain; charset="ISO-8859-1"

On 09/26/13 15:26, Andrew wrote:
> Happy to write some sofware, C or Java. I just had the idea there must
> be some templates around. Given that people are doing this all the time
> all over the world. I assume. In particular, I imagine that solenoid
> valve drivers, for instance, must have been done again and again.

Well, there's not much software to write for a "solenoid valve driver" -
they just operate from a GPIO pin, so you just need something that'll do
that. The main potential difficulty is in getting enough GPIO pins
(especially on a PC) and the hardware interfacing task of getting
suitable voltage and current capacity to drive the valve.



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

Message: 2
Date: Thu, 26 Sep 2013 15:31:33 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <52444545.8090807@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 15:17, David Smith wrote:
> On 09/26/13 14:40, Andrew wrote:
>> Hi All
>>
>> I have been asked to do a project which involves using the pc to turn on
>> and off some valves with reasonably accurate timing. I would be grateful
>> if someone could point me in the right direction. I have done some
>> googling but the subject seems to be massive and lots about robotics and
>> nothing terribly simple. Terribly simple is what I am after!
>>
>> Firstly, what sort of software does one use for this? And where do I get
>> the control valves - I assume I don't go to maplin, or is that the
>> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
>> be quite small bore, like windscreen washer stuff. Might need to use a
>> passed volume sensor / flow meter / however one does that.
> I doubt you'd find that sort of stuff at Maplin. I'd start by doing
> some searching (try "miniature solenoid valve" as a starting point) and
> maybe look at RS.
Thanks
>> This would all get prototyped on a standard pc with Debian. The final
>> objective is a using a raspberry pi with simple go buttons to set off
>> different sequences of operations.
> Personally I'd be tempted to go for Arduino rather than a RPi. I'd say
> that the Pi is probably a little "heavyweight" for this application.
> The Arduino has its own custom software environment for doing exactly
> this sort of thing.
Aha. I had an idea there might be something like that about.
>
> As for how to do the control, it depends on what valves you get, what
> voltage/currents are needed to drive them, and what sort of switching
> frequency and longevity you need - for example, if you need a
> significant current and/or voltage, you might want to use relays, but if
> they're switching frequently and need to last for a long time (rather
> than this just being a demo project or something used occasionally) then
> you may need to go solid-state. Either way, it's unlikely you'd be able
> to drive the valve directly from the Arduino/RPi because the valve would
> require more power than the device can supply.
It is for a long term use; and reliability is an issue once it is up and
running. It's all very low key. Low pressures, not a lot of on and offs.
I assume relays would be ok.

Thanks for all that. Arduino looks perfect.

Andrew





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Message: 3
Date: Thu, 26 Sep 2013 15:36:10 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <5244465A.5000300@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

Hi David

On 26/09/13 15:21, david wrote:
> It depends on the scale, I am doing a lot of this commercially using
> Labview.
> That is a expensive National Instruments product.
Looking at their site this looks great.
> But some years ago they did give away a Linux version, which can still
> be downloaded from a German site. It is good and powerful, but has
> quite a learning curve.
That sounds ideal. But a bit of googling only turned up this forum post
which concluded there was nothing like that available:

http://forums.ni.com/t5/LabVIEW/from-where-can-i-donwload-labview-for-Ubuntu-10-04/td-p/1250354

> Labjack do some interface boxes with labview drivers for < ?100
That sounds just the job.
>
> However I would recommend starting on the Raspberry, looking at the
> home robotics shops, and use Python or any language you are happy with.
> David
Thanks

Any thoughts on pi vs arduino?

Andrew


>
>
> On 26/09/13 14:40, Andrew wrote:
>> Hi All
>>
>> I have been asked to do a project which involves using the pc to turn on
>> and off some valves with reasonably accurate timing. I would be grateful
>> if someone could point me in the right direction. I have done some
>> googling but the subject seems to be massive and lots about robotics and
>> nothing terribly simple. Terribly simple is what I am after!
>>
>> Firstly, what sort of software does one use for this? And where do I get
>> the control valves - I assume I don't go to maplin, or is that the
>> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
>> be quite small bore, like windscreen washer stuff. Might need to use a
>> passed volume sensor / flow meter / however one does that.
>>
>> This would all get prototyped on a standard pc with Debian. The final
>> objective is a using a raspberry pi with simple go buttons to set off
>> different sequences of operations.
>>
>> Cheers
>>
>> Andrew
>>
>>
>>
>> _______________________________________________
>> Bristol mailing list
>> Bristol@mailman.lug.org.uk
>> https://mailman.lug.org.uk/mailman/listinfo/bristol
>>
>
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol
>


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Message: 4
Date: Thu, 26 Sep 2013 15:37:59 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <524446C7.8070505@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 15:31, David Smith wrote:
> On 09/26/13 15:26, Andrew wrote:
>> Happy to write some sofware, C or Java. I just had the idea there must
>> be some templates around. Given that people are doing this all the time
>> all over the world. I assume. In particular, I imagine that solenoid
>> valve drivers, for instance, must have been done again and again.
> Well, there's not much software to write for a "solenoid valve driver" -
> they just operate from a GPIO pin, so you just need something that'll do
> that. The main potential difficulty is in getting enough GPIO pins
> (especially on a PC) and the hardware interfacing task of getting
> suitable voltage and current capacity to drive the valve.
>
Ok. Thanks. My only experience of writing drivers was at low level for
some hot swap RAID boxes and it got ferociously complex very quickly!

Andrew
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End of Bristol Digest, Vol 518, Issue 4
***************************************

Bristol Digest, Vol 518, Issue 3

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When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. Controlling valves (Andrew)
2. Re: Controlling valves (Alaric Snell-Pym)
3. Re: Controlling valves (David Smith)
4. Re: Controlling valves (david)
5. Re: Controlling valves (Andrew)


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

Message: 1
Date: Thu, 26 Sep 2013 14:40:56 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: [bristol] Controlling valves
Message-ID: <52443968.5080402@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

Hi All

I have been asked to do a project which involves using the pc to turn on
and off some valves with reasonably accurate timing. I would be grateful
if someone could point me in the right direction. I have done some
googling but the subject seems to be massive and lots about robotics and
nothing terribly simple. Terribly simple is what I am after!

Firstly, what sort of software does one use for this? And where do I get
the control valves - I assume I don't go to maplin, or is that the
simplest way? Pressures are quite low, 10 psi or so, and the pipes will
be quite small bore, like windscreen washer stuff. Might need to use a
passed volume sensor / flow meter / however one does that.

This would all get prototyped on a standard pc with Debian. The final
objective is a using a raspberry pi with simple go buttons to set off
different sequences of operations.

Cheers

Andrew
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Message: 2
Date: Thu, 26 Sep 2013 15:06:49 +0100
From: Alaric Snell-Pym <alaric@snell-pym.org.uk>
To: bristol@mailman.lug.org.uk
Subject: Re: [bristol] Controlling valves
Message-ID: <52443F79.7030006@snell-pym.org.uk>
Content-Type: text/plain; charset="iso-8859-1"

On 26/09/13 14:40, Andrew wrote:
> Hi All
>
> I have been asked to do a project which involves using the pc to turn on
> and off some valves with reasonably accurate timing. I would be grateful
> if someone could point me in the right direction. I have done some
> googling but the subject seems to be massive and lots about robotics and
> nothing terribly simple. Terribly simple is what I am after!
>
> Firstly, what sort of software does one use for this? And where do I get
> the control valves - I assume I don't go to maplin, or is that the
> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
> be quite small bore, like windscreen washer stuff. Might need to use a
> passed volume sensor / flow meter / however one does that.
>
> This would all get prototyped on a standard pc with Debian. The final
> objective is a using a raspberry pi with simple go buttons to set off
> different sequences of operations.

Well, the solution could well be different for a PC than for a Pi, as
the Pi has some GPIO lines you could use to drive the solenoids and the
PC doesn't...

Can you get the Pi and start off by building solenoid valve drivers for
it, and then once it's working, attach it to a network and have the
prototype software on the PC talk to the Pi purely to use it to drive
the outputs? Then port the software over later!

As for the physical side:

The thing you want to google for is a "solenoid valve", I gather, and
which one you want is all about the flow rates and pressures and what
the fluid is and all that. And the driving voltage.

See if you can get 12v (or 5v? I dunno if they go down that far) ones -
many solenoid valves run on 240v mains, and it's best to avoid that if
you can.

Then how you drive them from the Pi depends on their current
requirements. Perhaps the Pi can drive a transistor which drives a relay
which drives the valve. Perhaps you can skip the relay if the current
requirement is low enough to be within the current capacity of the
transistor. Get somebody who's done this kind of thing b efore to check
your circuit before wiring it to the Pi, as IIRC the Pi doesn't have
much protection on its GPIO header :-)

How many valves do you need? If you need more than there are available
outputs on the Pi, it gets more complex.

As for the software - well, you get to write that, I believe :-) Once
you've got the low-level interfacing to valves (and sensors) done, you
should be able to access that from your favourite programming language
with little difficulty and write a little app that sits in a loop
polling the sensors, deciding if the valves need to change, and changing
them if required. And probably logging stuff somewhere. Everyone loves
sensor logs.

If all the above sounds really daunting, come to Bristol Hackspace in
Bedminster from 7pm this evening, bringing as much information about
your requirements as you can, and somebody will be able to offer
step-by-step advice :-)

ABS

--
Alaric Snell-Pym
http://www.snell-pym.org.uk/alaric/

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

Message: 3
Date: Thu, 26 Sep 2013 15:17:07 +0100
From: David Smith <Dave.Smith@st.com>
To: <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <524441E3.7080708@st.com>
Content-Type: text/plain; charset="ISO-8859-1"

On 09/26/13 14:40, Andrew wrote:
> Hi All
>
> I have been asked to do a project which involves using the pc to turn on
> and off some valves with reasonably accurate timing. I would be grateful
> if someone could point me in the right direction. I have done some
> googling but the subject seems to be massive and lots about robotics and
> nothing terribly simple. Terribly simple is what I am after!
>
> Firstly, what sort of software does one use for this? And where do I get
> the control valves - I assume I don't go to maplin, or is that the
> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
> be quite small bore, like windscreen washer stuff. Might need to use a
> passed volume sensor / flow meter / however one does that.

I doubt you'd find that sort of stuff at Maplin. I'd start by doing
some searching (try "miniature solenoid valve" as a starting point) and
maybe look at RS.

> This would all get prototyped on a standard pc with Debian. The final
> objective is a using a raspberry pi with simple go buttons to set off
> different sequences of operations.

Personally I'd be tempted to go for Arduino rather than a RPi. I'd say
that the Pi is probably a little "heavyweight" for this application.
The Arduino has its own custom software environment for doing exactly
this sort of thing.

As for how to do the control, it depends on what valves you get, what
voltage/currents are needed to drive them, and what sort of switching
frequency and longevity you need - for example, if you need a
significant current and/or voltage, you might want to use relays, but if
they're switching frequently and need to last for a long time (rather
than this just being a demo project or something used occasionally) then
you may need to go solid-state. Either way, it's unlikely you'd be able
to drive the valve directly from the Arduino/RPi because the valve would
require more power than the device can supply.



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

Message: 4
Date: Thu, 26 Sep 2013 15:21:08 +0100
From: david <david@avoncliff.com>
To: bristol@mailman.lug.org.uk
Subject: Re: [bristol] Controlling valves
Message-ID: <524442D4.7070203@avoncliff.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

It depends on the scale, I am doing a lot of this commercially using
Labview.
That is a expensive National Instruments product.
But some years ago they did give away a Linux version, which can still
be downloaded from a German site. It is good and powerful, but has quite
a learning curve.
Labjack do some interface boxes with labview drivers for < ?100

However I would recommend starting on the Raspberry, looking at the home
robotics shops, and use Python or any language you are happy with.
David


On 26/09/13 14:40, Andrew wrote:
> Hi All
>
> I have been asked to do a project which involves using the pc to turn on
> and off some valves with reasonably accurate timing. I would be grateful
> if someone could point me in the right direction. I have done some
> googling but the subject seems to be massive and lots about robotics and
> nothing terribly simple. Terribly simple is what I am after!
>
> Firstly, what sort of software does one use for this? And where do I get
> the control valves - I assume I don't go to maplin, or is that the
> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
> be quite small bore, like windscreen washer stuff. Might need to use a
> passed volume sensor / flow meter / however one does that.
>
> This would all get prototyped on a standard pc with Debian. The final
> objective is a using a raspberry pi with simple go buttons to set off
> different sequences of operations.
>
> Cheers
>
> Andrew
>
>
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol
>




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

Message: 5
Date: Thu, 26 Sep 2013 15:26:52 +0100
From: Andrew <andrewsoltau@gmail.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Controlling valves
Message-ID: <5244442C.5090405@1dtv.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 26/09/13 15:06, Alaric Snell-Pym wrote:
> On 26/09/13 14:40, Andrew wrote:
>> Hi All
>>
>> I have been asked to do a project which involves using the pc to turn on
>> and off some valves with reasonably accurate timing. I would be grateful
>> if someone could point me in the right direction. I have done some
>> googling but the subject seems to be massive and lots about robotics and
>> nothing terribly simple. Terribly simple is what I am after!
>>
>> Firstly, what sort of software does one use for this? And where do I get
>> the control valves - I assume I don't go to maplin, or is that the
>> simplest way? Pressures are quite low, 10 psi or so, and the pipes will
>> be quite small bore, like windscreen washer stuff. Might need to use a
>> passed volume sensor / flow meter / however one does that.
>>
>> This would all get prototyped on a standard pc with Debian. The final
>> objective is a using a raspberry pi with simple go buttons to set off
>> different sequences of operations.
> Well, the solution could well be different for a PC than for a Pi, as
> the Pi has some GPIO lines you could use to drive the solenoids and the
> PC doesn't...
>
> Can you get the Pi and start off by building solenoid valve drivers for
> it, and then once it's working, attach it to a network and have the
> prototype software on the PC talk to the Pi purely to use it to drive
> the outputs? Then port the software over later!
Can do. Good plan.
>
> As for the physical side:
>
> The thing you want to google for is a "solenoid valve", I gather, and
> which one you want is all about the flow rates and pressures and what
> the fluid is and all that. And the driving voltage.
>
> See if you can get 12v (or 5v? I dunno if they go down that far) ones -
> many solenoid valves run on 240v mains, and it's best to avoid that if
> you can.
>
> Then how you drive them from the Pi depends on their current
> requirements. Perhaps the Pi can drive a transistor which drives a relay
> which drives the valve. Perhaps you can skip the relay if the current
> requirement is low enough to be within the current capacity of the
> transistor. Get somebody who's done this kind of thing b efore to check
> your circuit before wiring it to the Pi, as IIRC the Pi doesn't have
> much protection on its GPIO header :-)
Yes. I was thinking the pc would have the volts to run the solenoids,
but of course the pi won't.
>
> How many valves do you need? If you need more than there are available
> outputs on the Pi, it gets more complex.
Probably only 5, definitely less than 10.
>
> As for the software - well, you get to write that, I believe :-) Once
> you've got the low-level interfacing to valves (and sensors) done, you
> should be able to access that from your favourite programming language
> with little difficulty and write a little app that sits in a loop
> polling the sensors, deciding if the valves need to change, and changing
> them if required.
Happy to write some sofware, C or Java. I just had the idea there must
be some templates around. Given that people are doing this all the time
all over the world. I assume. In particular, I imagine that solenoid
valve drivers, for instance, must have been done again and again.

> And probably logging stuff somewhere. Everyone loves
> sensor logs.
Oh yes!
>
> If all the above sounds really daunting, come to Bristol Hackspace in
> Bedminster from 7pm this evening, bringing as much information about
> your requirements as you can, and somebody will be able to offer
> step-by-step advice :-)
>
> ABS
>
Thank you very much for all that. I'm in Bath and I don't think I get
over to Bristol tonight. But a Hackspace meeting is obviously a good
place to get info at some point.


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https://mailman.lug.org.uk/mailman/listinfo/bristol

End of Bristol Digest, Vol 518, Issue 3
***************************************

Rabu, 25 September 2013

Bristol Digest, Vol 518, Issue 2

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.lug.org.uk/mailman/listinfo/bristol
or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
bristol-owner@mailman.lug.org.uk

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. Re: Bristol Digest, Vol 518, Issue 1 (David Reimer)
2. Re: Bristol Digest, Vol 518, Issue 1 (Sebastian)
3. Kernel Recipes streaming live from France today :) (Sebastian)


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

Message: 1
Date: Tue, 24 Sep 2013 17:00:23 +0100
From: David Reimer <dreimer@hotmail.co.uk>
To: "bristol@mailman.lug.org.uk" <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Bristol Digest, Vol 518, Issue 1
Message-ID: <DUB122-W3399FDC28E0E949D7DF4C4F22E0@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"

Re: this weekends meet
I am a pretty new user and would like too attend this weekends event

Regards David

> From: bristol-request@mailman.lug.org.uk
> Subject: Bristol Digest, Vol 518, Issue 1
> To: bristol@mailman.lug.org.uk
> Date: Tue, 24 Sep 2013 12:00:02 +0000
>
> Send Bristol mailing list submissions to
> bristol@mailman.lug.org.uk
>
> To subscribe or unsubscribe via the World Wide Web, visit
> https://mailman.lug.org.uk/mailman/listinfo/bristol
> or, via email, send a message with subject or body 'help' to
> bristol-request@mailman.lug.org.uk
>
> You can reach the person managing the list at
> bristol-owner@mailman.lug.org.uk
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Bristol digest..."
>
>
> Today's Topics:
>
> 1. LUG meeting :) this Saturday the 28th (Sebastian)
> 2. Re: LUG meeting :) this Saturday the 28th (Sebastian)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 23 Sep 2013 16:32:50 +0100
> From: Sebastian <sebsebseb_mageia@gmx.com>
> To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
> Sebastian <sebsebseb_mageia@gmx.com>
> Subject: [bristol] LUG meeting :) this Saturday the 28th
> Message-ID: <52405F22.4080905@gmx.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi
>
> I thought I would send out a early message about how our next LUG
> meeting is coming up this Saturday the 28th :). Please respond to this
> message if you are intending on coming :)!
>
> A very good turn out :), and a quite interesting meeting as a result for
> last months :), and I wonder what this months will be like.
>
> For anyone who may not know, that is reading this:
>
> For LUG meetings we meet up at the Knights Templar pub in Temple Quay
> near Temple Meads train station:
> http://www.jdwetherspoon.co.uk/home/pubs/the-knights-templar Someone
> is usually there about 1pm, and people turn up and leave when they
> decide too. With the last people leaving usually between 4 and 5pm, or a
> bit later depending on what happens. Sometimes, but not that often
> about 6pm for some of us, depending on what happens.
>
> As usual I am hoping to meet new people at the meeting as well :), and
> we usually sit in or near the left hand side corner with the plugs, at
> the back when entering the pub on the lower level.
>
> We get a mixture of different ages from 20's onwards basically. We
> welcome new people as well :), so no need to feel that you are too new
> to come along to the LUG meeting, if you haven't been before.
>
> Drinks, chatting, food if wanted, people with their lap tops etc with
> FREE pub wifi available for those that would like it, and also sometimes
> showing of Linux/tech related things, that have come along to the
> meeting that other people may be interested in seeing. Even though its
> called a Linux user group meeting, this does not mean we chat only about
> opensource/freesoftware, what gets chatted about really does depend on
> who is there.
>
> I hope too meet more of you this Saturday the 28th :), and in particular
> new people, or people who don't come that often :), but also regulars :).
>
> Regards
>
> Sebastian
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 23 Sep 2013 16:42:51 +0100
> From: Sebastian <sebsebseb_mageia@gmx.com>
> To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
> sebastian <sebsebseb_mageia@gmx.com>
> Subject: Re: [bristol] LUG meeting :) this Saturday the 28th
> Message-ID: <5240617B.1070408@gmx.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Also I should have mentioned how the meetings are informal.
>
>
>
> ------------------------------
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol
>
> End of Bristol Digest, Vol 518, Issue 1
> ***************************************

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Message: 2
Date: Wed, 25 Sep 2013 01:05:02 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Bristol Digest, Vol 518, Issue 1
Message-ID: <524228AE.8090307@gmx.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

On 24/09/13 17:00, David Reimer wrote:
> Re: this weekends meet
> I am a pretty new user
A new user of which distro/s and why, of interest? :)
> and would like too attend this weekends event
No problem just come along :).
>
> Regards David
By the way I suggest being on this mailing list in the non digest way by
changing the settings, so that you get the emails when they actually are
sent, but also so replies are done with the proper name of the thread,
and no digest stuff.

Kind Regards

Sebastian
>
> > From: bristol-request@mailman.lug.org.uk
> > Subject: Bristol Digest, Vol 518, Issue 1
> > To: bristol@mailman.lug.org.uk
> > Date: Tue, 24 Sep 2013 12:00:02 +0000
> >
> > Send Bristol mailing list submissions to
> > bristol@mailman.lug.org.uk
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> > https://mailman.lug.org.uk/mailman/listinfo/bristol
> > or, via email, send a message with subject or body 'help' to
> > bristol-request@mailman.lug.org.uk
> >
> > You can reach the person managing the list at
> > bristol-owner@mailman.lug.org.uk
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Bristol digest..."
> >
> >
> > Today's Topics:
> >
> > 1. LUG meeting :) this Saturday the 28th (Sebastian)
> > 2. Re: LUG meeting :) this Saturday the 28th (Sebastian)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Mon, 23 Sep 2013 16:32:50 +0100
> > From: Sebastian <sebsebseb_mageia@gmx.com>
> > To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
> > Sebastian <sebsebseb_mageia@gmx.com>
> > Subject: [bristol] LUG meeting :) this Saturday the 28th
> > Message-ID: <52405F22.4080905@gmx.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Hi
> >
> > I thought I would send out a early message about how our next LUG
> > meeting is coming up this Saturday the 28th :). Please respond to this
> > message if you are intending on coming :)!
> >
> > A very good turn out :), and a quite interesting meeting as a result
> for
> > last months :), and I wonder what this months will be like.
> >
> > For anyone who may not know, that is reading this:
> >
> > For LUG meetings we meet up at the Knights Templar pub in Temple Quay
> > near Temple Meads train station:
> > http://www.jdwetherspoon.co.uk/home/pubs/the-knights-templar Someone
> > is usually there about 1pm, and people turn up and leave when they
> > decide too. With the last people leaving usually between 4 and 5pm,
> or a
> > bit later depending on what happens. Sometimes, but not that often
> > about 6pm for some of us, depending on what happens.
> >
> > As usual I am hoping to meet new people at the meeting as well :), and
> > we usually sit in or near the left hand side corner with the plugs, at
> > the back when entering the pub on the lower level.
> >
> > We get a mixture of different ages from 20's onwards basically. We
> > welcome new people as well :), so no need to feel that you are too new
> > to come along to the LUG meeting, if you haven't been before.
> >
> > Drinks, chatting, food if wanted, people with their lap tops etc with
> > FREE pub wifi available for those that would like it, and also
> sometimes
> > showing of Linux/tech related things, that have come along to the
> > meeting that other people may be interested in seeing. Even though its
> > called a Linux user group meeting, this does not mean we chat only
> about
> > opensource/freesoftware, what gets chatted about really does depend on
> > who is there.
> >
> > I hope too meet more of you this Saturday the 28th :), and in
> particular
> > new people, or people who don't come that often :), but also
> regulars :).
> >
> > Regards
> >
> > Sebastian
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Mon, 23 Sep 2013 16:42:51 +0100
> > From: Sebastian <sebsebseb_mageia@gmx.com>
> > To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
> > sebastian <sebsebseb_mageia@gmx.com>
> > Subject: Re: [bristol] LUG meeting :) this Saturday the 28th
> > Message-ID: <5240617B.1070408@gmx.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Also I should have mentioned how the meetings are informal.
> >
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Bristol mailing list
> > Bristol@mailman.lug.org.uk
> > https://mailman.lug.org.uk/mailman/listinfo/bristol
> >
> > End of Bristol Digest, Vol 518, Issue 1
> > ***************************************
>
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol

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Message: 3
Date: Wed, 25 Sep 2013 10:31:45 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
sebastian <sebsebseb_mageia@gmx.com>
Subject: [bristol] Kernel Recipes streaming live from France today :)
Message-ID: <5242AD81.4080001@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi

Kernel Recipes is streaming live from France again today :). Yesterday I
started streaming late whilst event was still on.

If you have the time I suggest watching Kernel Recipes live at:
http://cite-sciences.ubicast.eu/lives/kernelrecipes/ talks are in
English and they will be on until the evening again I think, and it has
already started again for today.

Kernel Recipes is being run by Anne Nicholas the main founder of Mageia etc.

Regards

Sebastian



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

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Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol

End of Bristol Digest, Vol 518, Issue 2
***************************************

Selasa, 24 September 2013

Bristol Digest, Vol 518, Issue 1

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

To subscribe or unsubscribe via the World Wide Web, visit
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or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. LUG meeting :) this Saturday the 28th (Sebastian)
2. Re: LUG meeting :) this Saturday the 28th (Sebastian)


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

Message: 1
Date: Mon, 23 Sep 2013 16:32:50 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: [bristol] LUG meeting :) this Saturday the 28th
Message-ID: <52405F22.4080905@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi

I thought I would send out a early message about how our next LUG
meeting is coming up this Saturday the 28th :). Please respond to this
message if you are intending on coming :)!

A very good turn out :), and a quite interesting meeting as a result for
last months :), and I wonder what this months will be like.

For anyone who may not know, that is reading this:

For LUG meetings we meet up at the Knights Templar pub in Temple Quay
near Temple Meads train station:
http://www.jdwetherspoon.co.uk/home/pubs/the-knights-templar Someone
is usually there about 1pm, and people turn up and leave when they
decide too. With the last people leaving usually between 4 and 5pm, or a
bit later depending on what happens. Sometimes, but not that often
about 6pm for some of us, depending on what happens.

As usual I am hoping to meet new people at the meeting as well :), and
we usually sit in or near the left hand side corner with the plugs, at
the back when entering the pub on the lower level.

We get a mixture of different ages from 20's onwards basically. We
welcome new people as well :), so no need to feel that you are too new
to come along to the LUG meeting, if you haven't been before.

Drinks, chatting, food if wanted, people with their lap tops etc with
FREE pub wifi available for those that would like it, and also sometimes
showing of Linux/tech related things, that have come along to the
meeting that other people may be interested in seeing. Even though its
called a Linux user group meeting, this does not mean we chat only about
opensource/freesoftware, what gets chatted about really does depend on
who is there.

I hope too meet more of you this Saturday the 28th :), and in particular
new people, or people who don't come that often :), but also regulars :).

Regards

Sebastian



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

Message: 2
Date: Mon, 23 Sep 2013 16:42:51 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] LUG meeting :) this Saturday the 28th
Message-ID: <5240617B.1070408@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Also I should have mentioned how the meetings are informal.



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

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Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol

End of Bristol Digest, Vol 518, Issue 1
***************************************

Kamis, 19 September 2013

Bristol Digest, Vol 517, Issue 2

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

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Today's Topics:

1. Re: Linuxcon US Keynotes streaming live online this week
(Sebastian)
2. Re: Linuxcon US Keynotes streaming live online this week
(Sebastian)


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

Message: 1
Date: Wed, 18 Sep 2013 15:03:56 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Linuxcon US Keynotes streaming live online this
week
Message-ID: <5239B2CC.90609@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 17/09/13 10:35, Tim-Philipp M?ller wrote:
> On Mon, 2013-09-16 at 20:33 +0100, Sebastian wrote:
>
>> Also I wonder if any of you are thinking about going to Linuxcon Europe
>> in Edinbrugh next month?
> I'll be there (going to the GStreamer Conference and ELCE mostly).
>
> Cheers
> -Tim
>
>
>
I was originally thinking about going to OGG Camp first in Liverpool,
and then going up to Edinbrugh on the Sunday evening after that is over,
because of Linuxcon Europe starting the next day. However in the past
few weeks or so, I have decided too not go up to Edinbrugh as well,
because of certain reasons. I do however plan to go to OGG Camp still,
and I may even speak there this year like I wanted to do last year,
depending on what happens.

Oh and its very nearly time as I do this email, for today's Linuxcon US
talks to be streamed online live, and one of them is a panel talk with
Linus Torvalds etc.

Regards

Sebastian



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

Message: 2
Date: Wed, 18 Sep 2013 15:21:54 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Linuxcon US Keynotes streaming live online this
week
Message-ID: <5239B702.3070805@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I forgot to mention I hope the Linuxcon Europe keynotes will be streamed
online at least, since I am probably not going.

Anyway time for the Linuxcon US keynotes live online, it's just started :).

Regards

Sebastian



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

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End of Bristol Digest, Vol 517, Issue 2
***************************************

Selasa, 17 September 2013

Bristol Digest, Vol 517, Issue 1

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

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When replying, please edit your Subject line so it is more specific
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Today's Topics:

1. Linuxcon US Keynotes streaming live online this week (Sebastian)
2. Re: Linuxcon US Keynotes streaming live online this week
(Sebastian)
3. Re: Linuxcon US Keynotes streaming live online this week
(Tim-Philipp M?ller)


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

Message: 1
Date: Mon, 16 Sep 2013 20:33:04 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: [bristol] Linuxcon US Keynotes streaming live online this
week
Message-ID: <52375CF0.6050601@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Just thought I would tell you all in case anyone else is interested.
The Linuxcon US keynotes are being streamed online today, tomorrow, and
Wednesday. Watched some this afternoon, and currently the Android talk
is on.

Shame the Mageia talk that someone is going to do there on Wednesday,
won't be getting streamed online it seems, since it's not a keynote.

http://events.linuxfoundation.org//events/cloudopen-north-america/program/live-video-stream

http://www.ustream.tv/LinuxFoundation

Also I wonder if any of you are thinking about going to Linuxcon Europe
in Edinbrugh next month?



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

Message: 2
Date: Mon, 16 Sep 2013 20:42:42 +0100
From: Sebastian <sebsebseb_mageia@gmx.com>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>,
Sebastian <sebsebseb_mageia@gmx.com>
Subject: Re: [bristol] Linuxcon US Keynotes streaming live online this
week
Message-ID: <52375F32.1070505@gmx.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed


>
> http://events.linuxfoundation.org//events/cloudopen-north-america/program/live-video-stream
>
Not the link I was going to give, but that will work as well as this
one:
http://events.linuxfoundation.org//events/linuxcon-north-america/program/live-video-stream

HP and OpenStack talk now as I do this email.



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

Message: 3
Date: Tue, 17 Sep 2013 10:35:12 +0100
From: Tim-Philipp M?ller <t.i.m@zen.co.uk>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] Linuxcon US Keynotes streaming live online this
week
Message-ID: <1379410512.7223.6.camel@zingle>
Content-Type: text/plain; charset="UTF-8"

On Mon, 2013-09-16 at 20:33 +0100, Sebastian wrote:

> Also I wonder if any of you are thinking about going to Linuxcon Europe
> in Edinbrugh next month?

I'll be there (going to the GStreamer Conference and ELCE mostly).

Cheers
-Tim




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

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End of Bristol Digest, Vol 517, Issue 1
***************************************

Rabu, 11 September 2013

Bristol Digest, Vol 516, Issue 1

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than "Re: Contents of Bristol digest..."


Today's Topics:

1. Re: 30 USB Sticks By The End Of November!? (James Cownie)


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

Message: 1
Date: Wed, 11 Sep 2013 09:38:30 +0100
From: James Cownie <jcownie@cantab.net>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] 30 USB Sticks By The End Of November!?
Message-ID: <C1EBFC5A-DC6D-49AB-B73A-0DB75DE8FB33@cantab.net>
Content-Type: text/plain; charset="us-ascii"

> If I can get hold of at least 30 (2 to 4GB) sticks, we could have the basics for an event. So if anyone wants to donate old stick(s) I hope to be at the KT for the next couple of meetings.

Since I work at Intel, I have managed to track down someone in our marketing department and persuade them that we should support this.
(I told them that you'd be happy to mention that Intel is supporting the event, which I hope wasn't over-stretching things as it is common politeness :-)).

So, they have 30 USB sticks for you, and are asking where to send them...

--
-- Jim
--
James Cownie <jcownie@cantab.net>



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