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by treczoks
Tue Jan 08, 2013 8:01 am
Forum: Teaching and learning resources
Topic: CAS German Translation - Deutsche Übersetzung
Replies: 2
Views: 2312

CAS German Translation - Deutsche Übersetzung

Hi! I had a look at the CAS educational manual and thought about teaching my kids the ins and outs of programming. For that, a German translation would be needed, and I would not mind starting it in a translate-as-you-go method, i.e. do whatever chapters I need für my kids. Most of the work in the f...
by treczoks
Thu Jan 03, 2013 8:42 am
Forum: General discussion
Topic: User registration for free downloads?
Replies: 10
Views: 2773

Re: User registration for free downloads?

I fully agree. Why should I register with some unknown website with an unacceptable ToS just to download free stuff? Why can't you just run the store under the raspberrypi.org domain and accounts, with extended accounts for those who want to shop or sell? I don't want to "register now to start playi...
by treczoks
Sun Sep 23, 2012 5:09 pm
Forum: Beginners
Topic: Offline installing programs.
Replies: 14
Views: 21289

Re: Offline installing programs.

Hi! I've got a similar problem: I've got a RPi in one place (where there is a TV with HDMI, but no net), and a PC (Linux) in another location (with net, but nothing resembling HDMI or composite within reach). I know I can pull down the one or other DEB file onto a whatever drive (USB stick, USB HD),...
by treczoks
Tue Sep 11, 2012 2:01 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: P6 on rev2 board
Replies: 4
Views: 2742

Re: P6 on rev2 board

Thanks, Jojopi.
I've read that page, but must have overlooked it somehow.
by treczoks
Tue Sep 11, 2012 7:10 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: P6 on rev2 board
Replies: 4
Views: 2742

P6 on rev2 board

Hi! Any idea where I can get information on the P6 of the rev2 board? The P6 is a two-pin header located next to the HDMI, and might have something to do with power, but one cannot be sure from the picture alone. The wiki does not know about it, and you can't dig the forum for "D6" as its only two l...
by treczoks
Thu Apr 05, 2012 12:48 pm
Forum: General discussion
Topic: Routing Ethernet pins 4,5,7,8 to the expansion port?
Replies: 8
Views: 3685

Re: Routing Ethernet pins 4,5,7,8 to the expansion port?

<t>~Neil~ said: <br/> <br/> <br/> treczoks said: <br/> <br/> <br/> Power-over-Ethernet (PoE) uses pins 4, 5, 7 and 8. [...]<br/> <br/> <br/> Not quite.  The PoE standard defines two ways to run PoE over Ethernet cables.<br/> <br/> <br/> Yes, I am well aware that using 4/5/7/8 is only one way. Actual...
by treczoks
Wed Apr 04, 2012 7:10 am
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

Lynbarn said:


Try this, one of the latest on this subject: http://www.raspberrypi.org/for.....nsion-port


Dang! You got me there

But you should check your calender, it is three days off.
by treczoks
Wed Apr 04, 2012 7:07 am
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>plugwash said: <br/> <br/> A polyswitch is just a fuse substitute that is self resetting (AIUI under overcurrent conditions they heat up and break the circuit, then when they cool down the circuit is restored), nothing too fancy and not polarised.<br/> Self-resetting fuses come in many shapes and...
by treczoks
Tue Apr 03, 2012 10:42 pm
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>Gert said: <br/> <br/> <br/> All of this has already been extensive discussed in about a dozen posts about power.<br/> <br/> <br/> Not exactly. All the posts about power topics I've found in the forums supply the power via the USB connector. I'm specifically asking about feeding the RPi via the e...
by treczoks
Tue Apr 03, 2012 9:56 am
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>Phil Spiegel said: <br/> <br/> <br/> Would Paralleled pairs of AA"s offer a useful solution – with more current capability – but still requiring UP conversion?<br/> <br/> <br/> Connecting batteries in parallel is IMHO a big No-No, as the lowest batt draws power from its siblings. Placing an empty...
by treczoks
Tue Apr 03, 2012 9:45 am
Forum: General discussion
Topic: Routing Ethernet pins 4,5,7,8 to the expansion port?
Replies: 8
Views: 3685

Re: Routing Ethernet pins 4,5,7,8 to the expansion port?

<t>nmcc said: <br/> <br/> <br/> The general consensus is that there won't be changes to the PCB for months to come, indeed unlikely even in 2013!<br/> <br/> <br/> I would not dare to speculate about devices that popular to go unchanged in such a timeframe. It might be a goal, but that can change e.g...
by treczoks
Tue Apr 03, 2012 7:28 am
Forum: General discussion
Topic: Routing Ethernet pins 4,5,7,8 to the expansion port?
Replies: 8
Views: 3685

Re: Routing Ethernet pins 4,5,7,8 to the expansion port?

<t>Well, the RPi is using 100Mbit Ethernet, which in turn only utilizes pins 1, 2, 3 and 6 of the TP ethernet cable.<br/> <br/> Power-over-Ethernet (PoE) uses pins 4, 5, 7 and 8. While putting PoE on a standard RPi is to expensive in parts and PCB space, just routing the pins to four additonal pins ...
by treczoks
Tue Apr 03, 2012 7:09 am
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>My coworker told me to just use a stepup-regulator instead of a steput/stepdown, and go for two AAs.<br/> <br/> One question remains: Which polyswitch does the RPi use, and how does it cope with getting power at the output pin, while having or not having a power input? Someone might decide to jus...
by treczoks
Mon Apr 02, 2012 7:00 am
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>Kári said: <br/> <br/> <br/> As I understand it, yes, but you should provide your own protection device (fuse/polyswitch/etc.), as you are bypassing the Raspi polyswitch.<br/> <br/> A quick google didn't turn up any datasheet for LM1302. I assume it is a buck/boost switchmode regulator? Not sure ...
by treczoks
Sun Apr 01, 2012 8:06 pm
Forum: General discussion
Topic: Powering the Pi via the expansion Port?
Replies: 16
Views: 4428

Re: Powering the Pi via the expansion Port?

<t>Hi!<br/> <br/> Is it possible to power the RPi via the expansion bus instead of the micro USB?<br/> <br/> I thought about a simple, small board attached to a (3|4)x(AA|AAA) battery holder, using a DC/DC like the LM1302 to provide power via the expansion bus' 5V/GND pins (which could also provide ...
by treczoks
Sat Mar 17, 2012 1:03 pm
Forum: General discussion
Topic: SD Card Read-Only switch
Replies: 14
Views: 3124

Re: SD Card Read-Only switch

<t>Hi!<br/> <br/> I was just wondering (after diggging the documentation without success) if the Pi honors the SD cards "read-only" switch.<br/> <br/> Some embedded devices do, some don't, some even have hardware to prevent write access if the switch is set instead of just relying on software.<br/> ...
by treczoks
Fri Mar 16, 2012 8:33 am
Forum: General discussion
Topic: Perfect Case for everyone born in the 80's ;)
Replies: 37
Views: 15194

Re: Perfect Case for everyone born in the 80's ;)

<t>ToastyTwo said: <br/> <br/> <br/> Amazing that 4 AA Cells will power up the Pi, right? Would be great to go green and use rechargeable AA"s.<br/> <br/> <br/> Ah, careful, young padawan! The non-rechargeables habe 1.5V, the rechargeables only 1.2V! So 4x1.5V gives 6V (which can nicely be regulated...
by treczoks
Thu Mar 15, 2012 10:21 pm
Forum: General discussion
Topic: Get Well Soon Liz !
Replies: 25
Views: 4613

Re: Get Well Soon Liz !

Poor Liz! Get well really soon!

And keep off the snow in the future. In hospitals near skiing resorts they call the winter "fracture season" for a reason...
by treczoks
Tue Mar 13, 2012 10:21 pm
Forum: General discussion
Topic: Donating to RPF when buying a RPi?
Replies: 10
Views: 2188

Re: Donating to RPF when buying a RPi?

<t>Kernel said: <br/> <br/> <br/> It seems to be possible to donate via ebay - go here:<br/> <br/> <br/> As I don't play ebay, I've no payloss account, either. But I would certainly not be curmudgeonly when I'm paying for the RPi. And such a drive-by-collection, maybe with a short popup informing ab...
by treczoks
Tue Mar 13, 2012 2:40 pm
Forum: General discussion
Topic: Donating to RPF when buying a RPi?
Replies: 10
Views: 2188

Re: Donating to RPF when buying a RPi?

<t>When, oh, when I could finally order at RS or Farnell, and if they had a field in their order form called "Donation to the Raspberry Pi Foundation (optional)" that they would add to the bill, collect, and forward to Cambridge, I would gladly drop in a few extra (denomination of choice) while payi...
by treczoks
Mon Mar 12, 2012 8:10 am
Forum: General discussion
Topic: Taste-testing-the-Raspberry-Pi
Replies: 15
Views: 3410

Re: Taste-testing-the-Raspberry-Pi

<t>Jongoleur said: <br/> <br/> There's nothing quite salutary and guaranteed to wake you from a mid-afternoon reverie than the ping and whine of a piece of chalk and that little cone of dust it left on the desk in front of you.<br/> Oh, believe me, there is! One elder teacher of me had a mean walkin...
by treczoks
Mon Jan 30, 2012 12:15 pm
Forum: General discussion
Topic: Safe Running Temperature.
Replies: 41
Views: 20108

Re: Safe Running Temperature.

Another issue apart from the chip is the board itself, which might produce cracks in the copper if it gets too cold.
by treczoks
Tue Jan 17, 2012 9:39 am
Forum: Other projects
Topic: Lego case project
Replies: 68
Views: 82007

Re: Lego case project

<t>liz said: <br/> <br/> <br/> There is an LL928 on my desk at home;<br/> <br/> <br/> Wow! Just Wow! I am an AFOL (Adult Fan Of Lego) myself, and it ist interesting to see where in the world the bricks pop up, and how.<br/> <br/> When I get a chance to come to Cambridge again, I think I'll drop by!<...
by treczoks
Thu Jan 12, 2012 9:07 am
Forum: General discussion
Topic: Why "Raspberry Pi"?
Replies: 6
Views: 1632

Re: Why "Raspberry Pi"?

I mean, this should be an FAQ, but it wasn't there.

I can understand the "Pi" instead of "Pie" as a nice pun, but why "Raspberry"?
by treczoks
Wed Jan 11, 2012 8:19 am
Forum: General discussion
Topic: Those RPi Keyboard Stickers
Replies: 5
Views: 1596

Re: Those RPi Keyboard Stickers

Hi!

Could you do us a favour and add a picture showing the stickers next to a ruler, so we can get a rough idea on the size?

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