b7971 are getting really expensive :(
marcin
tubes... And they are different from each other. My gods.
Tony Adams
have an evacuation nipple.
Ouch.
On Feb 16, 7:37 pm, marcin <marcin.r.adam...@gmail.com> wrote:
> http://www.ebay.com/itm/290668961727$137.5 a piece for two untested
Mich...@aol.com
marcin
'antenna' in the left one. But true! The left one seems to be a
female!
Frank Bemelman
You received this message because you are subscribed to the Google Groups "neonixie-l" group.
To post to this group, send an email to neoni...@googlegroups.com.
To unsubscribe from this group, send email to neonixie-l+...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Mich...@aol.com
David Forbes
> I meant funny as in.... I noticed it about the same time, and just when I
> was going to post my finding, I received the post that someone else spotted
> it as well.
>
> Michail
Yes. Receiving a tube with a broken nipple that you just paid over $150 for,
would not be very funny.
--
David Forbes, Tucson, AZ
fixitsan
confirmed that the 'pinch' on both tubes was complete and intact.
Still, I did not bid.
Chris
On Feb 16, 8:27 pm, David Forbes <dfor...@dakotacom.net> wrote:
marcin
http://www.ebay.com/itm/270920427260?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
OMG I still need couple of them for my project.
Mich...@aol.com
Cobra007
just in case you haven't.
http://eeberfest.net/tubetoys.php
Apparently not a very cheap project to start these days :-)
Michel
On Feb 17, 6:37 am, marcin <marcin.r.adam...@gmail.com> wrote:
> http://www.ebay.com/itm/290668961727$137.5 a piece for two untested
marcin
Spencer W
Sent from my iPhone
Quixotic Nixotic
were emailed and told to look at the website at 6am this morning.
Armed with tea I refreshed both myself and my browser until the site
kicked in on the dot of 6 and was told to order from Premier Farnell
or RS. Mad rush to Farnell, logged in with my account details and
bang, the site melted. Decided to try a phone order. Phone sales
kicked in at 8am. Managed to talk to someone at 8.08am and in theory
I have got one. I was told none are actually shipping until after
March 12th. They only arrived in the UK on Monday and they'd need to
test them.
It's great that they have a done a deal with major distributors to
manufacture and supply - they can match the huge demand and
manufacture accordingly. Shame it cannot be made in the UK.
Awesome little device. Hopefully it will change the world.
John S
Dylan Distasio
--
You received this message because you are subscribed to the Google Groups "neonixie-l" group.
To post to this group, send an email to neoni...@googlegroups.com.
To unsubscribe from this group, send email to neonixie-l+unsubscribe@googlegroups.com.
Quixotic Nixotic
> As soon as I discover nixies and build my own, they start becoming
> scarce and expensive!
Well build yourself a few more and sell off the surplus.
Yours ducking to avoid incoming,
John
Grahame Marsh
To unsubscribe from this group, send email to neonixie-l+...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
--
You received this message because you are subscribed to the Google Groups "neonixie-l" group.
To post to this group, send an email to neoni...@googlegroups.com.
To unsubscribe from this group, send email to neonixie-l+...@googlegroups.com.
Cobra007
language is the main stream programmers going to use to program these
computers? Is it indeed Python, or will it be a C based language. It
is aimed for teenagers, but that's not where it will end.
Michel
> > <mailto:neonixie-l%2Bunsu...@googlegroups.com>.
Cobra007
real-time applications? Say something like capturing a 1ms timer
interrupt that is guaranteed never to skip one int call?
Michel
NeilS
> And a second question, does anyone know if this board can be used for
> real-time applications? Say something like capturing a 1ms timer
> interrupt that is guaranteed never to skip one int call?
>
> > language is the main stream programmers going to use to program these
> > computers? Is it indeed Python, or will it be a C based language. It
> > is aimed for teenagers, but that's not where it will end.
> >
I ordered one at Farnell earlier (you know, for the kids to play with),
but have been told I'm not getting it until mid April.
I'm not bothered what interpreters and languages it comes with to be
honest. From what they've said they are using standard Linux distros
which means pretty much any language is only an apt-get or a yum away.
(I think it was mentioned Fedora is the one that comes with it.)
I'm intrigued to find out what (if any) educational software has been
made specifically for the device so far. I watch with interest the
Playpower.org project whose aims are broadly parallel with those of
Raspberry Pi (ultra low-cost educational machine, uses a TV for a
display, volunteer coding effort), but it never really got the press
behind it the way Raspberry Pi appears to have done.
Neil
coggs
at an incredible price. It is running the latest Arm Cortex SOC with
the SDRAM sandwiched in the same package, but even that isn't unique.
It does have HDMI out which is fairly distinctive, but there are
others (http://www.geek.com/wp-content/uploads/2011/11/
cotton_candy.jpg)
The price US$35 really is difficult to believe, but possible since
Broadcomm is probably giving away the chip at near cost for marketing
purposes. The fact that they'll be building them in China in 20k unit
batches doesn't hurt either. (The RasPI organizer's day job is working
for Broadcomm). The fact that RasPI is organized as an not-for-profit
educational trust also has something to do with the incredible low
cost.
The hardware is currently NOT open source, BTW. You have to sign an
NDA with Broadcomm to find anything out about the processor. That kind
a urked me from the get-go.
What remains to be seen is how much software is ported that will make
it easier to program for people.
The really exciting thing I see about this and the BeagleBone are
getting a massive audience exposed to Embedded Linux. Linux/UNIX
Rocks, but I've been doing it for 30+ years, and coding in C/C++ for
UNIX does have a bit of a curve to it.
That said, the true power of embedded Linux is the *immense* installed
base of code you can (potentially) get running. Python programmers
will be able to code for it, as well as php, ruby, processing, sql-
lite, perl, bash, basic, Name your poison.
Still, you will need know one of those languages and some basic Linux
sysadmin skills to get started.
Regarding Educational, there's something called 'Kids Ruby' which'll
supposedly run on the RasPI which looks cool - http://kidsruby.com/
Someone asked can Linux reliably capture 1ms events ? Answer: Yes,
but; You would have to write a kernel module to reliably collect the
data at that rate. You could get finer granularity, but you'd need to
muck with the scheduler. Not bunny hill stuff.
..c
www.cogwheel.com
www.cogwheelcircuitworks.com
Quixotic Nixotic
> To me, the RasPI just the latest embedded Linux board, but this time
> at an incredible price. It is running the latest Arm Cortex SOC with
> the SDRAM sandwiched in the same package, but even that isn't unique.
> It does have HDMI out which is fairly distinctive, but there are
> others (http://www.geek.com/wp-content/uploads/2011/11/
> cotton_candy.jpg)
>
> The price US$35 really is difficult to believe, but possible since
> Broadcomm is probably giving away the chip at near cost for marketing
> purposes. The fact that they'll be building them in China in 20k unit
> batches doesn't hurt either. (The RasPI organizer's day job is working
> for Broadcomm). The fact that RasPI is organized as an not-for-profit
> educational trust also has something to do with the incredible low
> cost.
The Raspberry Pi Foundation is a UK charity.
A PDF here explains the team and its aims:
http://www.cl.cam.ac.uk/~rdm34/raspi-talk.pdf
The Foundation is adamant that the cost per unit will not increase.
In fact they have already doubled the memory of the A board before
any have been made, for the same cost. The main stream of Pis will
include a free clear case, once component supplies and board layout
are standardised.
The computer knowledge taught at UK schools has generally been poor,
often confined to an overview of Microsoft Office. The ability of the
teachers has been poor. So the school teaching packs for the
Raspberry Pi will be aimed at teaching the teachers as much as
teaching the kids. It will be very visual, with the code and the
resulting effects graphic and immediate. Government lobbying has been
going on at quite a high level and it is no accident that reforms in
IT teaching in UK schools have been announced slightly in advance of
the Pi's release.
The Pi is also distinctive for us nixie-ites who like to wire things
up, because it has brought out 12 general I/O pins to a standard 0.1"
header. Gert, who also works at Broadcom, has already produced the
Gertboard, which is a breakout board that will allow programmable
access to these pins for control purposes. This will become available
shortly.
http://youtu.be/-UK4mKBpTBE
The model B I ordered yesterday from Farnell cost £24.55 and with UK
VAT tax it came to £29.46. Delivery if you have to pay it will be
extra. I am still trying to figure out why RS says it is £21.60 (no
doubt +VAT). You'd think they would standardise the price between the
two suppliers.
Broadcom arm peripheral data sheet is here:
http://www.farnell.com/datasheets/1521578.pdf
John S
Cobra007
Thanks for the details.
>
> Someone asked can Linux reliably capture 1ms events ? Answer: Yes,
> but; You would have to write a kernel module to reliably collect the
> data at that rate. You could get finer granularity, but you'd need to
> muck with the scheduler. Not bunny hill stuff.
>
real time by the Kernel module, but cannot (or is not guaranteed to)
process the data in real time? It does not support something like
capturing a timer int and redirecting it to an application routine? I
never worked with Linux so I actually saw this as an opportunity to
get started. Normally I use DOS with GO32, capturing a timer int that
can be used in a real time application is very easy in DOS.
Michel
Dylan Distasio
--
You received this message because you are subscribed to the Google Groups "neonixie-l" group.
To post to this group, send an email to neoni...@googlegroups.com.
To unsubscribe from this group, send email to neonixie-l+unsubscribe@googlegroups.com.
Nick
Mind you, its not as though I'm short of other projects to finish ...
Quixotic Nixotic
> Just been told that I probably won't get mine until May :
> ( presumably from batch #2
I was told week of March 12. Others have April dates, so I guess May
might be the third batch, unless April was optimistic. With 100,000
more RasPis ordered from the factory in China last Wednesday it may
be a tall order for them to get supplies of everything in that quantity.
I see there is a lot of general confusion about deliveries. Farnell
say today:
Q: I got an email from Farnell element14 stating that my delivery
date for the Raspberry Pi I ordered is now into May or June, is this
correct?
A: Sorry! We updated the data in our system so that new customers
placing their pre-order would be advised of the delivery date at the
end of May or beginning of June. If you originally had an estimated
delivery date in March or April, your delivery estimate is still as
per the original communication.
John S
Quixotic Nixotic
> Just been told that I probably won't get mine until May :
> ( presumably from batch #2
All 10,000 of the original batch of Raspberry Pis have been found to
have 'non-magnetic' ethernet sockets, due to substitution of the
wrong part in China.
The 10,000 are being manually changed, are almost completed and
delivery of the first batch is as going to be as scheduled. Monday
onwards. It sounds a bit optimistic.
100,000 correct sockets are being hunted down for the second run and
this might slightly delay the release of this second batch.
John S
Nick
On Friday, March 9, 2012 8:08:55 AM UTC, Quixotic Nixotic wrote:
On 6 Mar 2012, at 05:06, Nick wrote:> Just been told that I probably won't get mine until May :
> ( presumably from batch #2All 10,000 of the original batch of Raspberry Pis have been found to
have 'non-magnetic' ethernet sockets, due to substitution of the
wrong part in China
David Forbes
>
> For the record, "magnetics" refers to galvanic isolation for the data
> pairs between the Ethernet cable and the host device - essentially a
> pair of small 1:1 transformers which used to be in an external little
> module but nowadays tends to be inside the RJ45 socket itself. See
> http://www.amphenolcanada.com/ProductSearch/pdf/RJmag_CAT.pdf for an
> example.
>
> Its a very bad bit of quality control if this really happened as
> stated... regrettably, the problem would only manifest itself with the
> destruction of the RP...
>
> Nick
It's not likely to cause a problem at all, since there is also a set of
transformers inside the hub that you plug it into. Still, there is the
potential for trouble.
--
David Forbes, Tucson AZ
Nick
David Forbes
> Maybe, maybe not - it depends on how long the cable is, the electrical
> environment in place and whether, to abuse a phrase, "Do I feel
> lucky?"... Naughty cheapskates at the fab - you save a few cents by not
> having magnetics in the socket, and its unlikely that anyone will notice
> until its too late.
>
The whole point of the Pi was to save more than a few cents. So it's not
surprising that someone in purchasing discovered how much less a raw
jack costs, and didn't check with the engineers. Because engineers
always make you spend more money on the correct parts!
Quixotic Nixotic
For the record, "magnetics" refers to galvanic isolation for the data pairs between the Ethernet cable and the host device - essentially a pair of small 1:1 transformers which used to be in an external little module but nowadays tends to be inside the RJ45 socket itself. See http://www.amphenolcanada.com/ProductSearch/pdf/RJmag_CAT.pdf for an example.Its a very bad bit of quality control if this really happened as stated... regrettably, the problem would only manifest itself with the destruction of the RP...
Nick
They X-rayed a sample Nick,The Pi blog says regarding the delay: 'This is because of a hardware parts substitution that was made in the factory by accident: specifically, where we’d specified jacks with integrated magnetics in the BOM and schematics, the factory soldered in non-magnetic jacks.'
Nick
coggs
I bet VIA will be able ramp up production w/o glitches..
I like that they made it a standard form factor..
Quixotic Nixotic
On 27 May 2012, at 10:00, Nick wrote:
> Got two on Saturday - one from RS, one from Farnell...
I loaded Raspbmc last week, the port of XBMC, and it makes a creditable little media centre, playing audio and video files and streaming in web content.
http://www.raspbmc.com/
The little lad doing all the work just turned 18, bless him.
I've been making laser cut acrylic cases for the RasPi - all sold out right now but I am about to refine the design and get more made. 50% profits to the Foundation.
http://raspi.co.uk/
It's a lot of fun but it's still early days,
John S