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rurwinrurwin 09 Dec 2014 07:56
in discussion Hidden / Per page discussions » Power Switch

You are right; R1 is superfluous because SW1 could switch the power directly.

I don't believe there is a signal "high-while-pi-on" — certainly not on the B. That is the signal that you make on a GPIO pin.

by rurwinrurwin, 09 Dec 2014 07:56
JMicro (guest) 09 Dec 2014 03:03
in discussion Hidden / Per page discussions » Power Switch

Why not put SW1 in place of R1 ?
I have designed same circuit except only use one relay

dont let the software service control R2, just a high-while-pi-on 3.3 or 5.5v pin

When pi powers up, 5,5v pin active R2, when makes a soft-shutdown goes low (0v) and cut off R2

by JMicro (guest), 09 Dec 2014 03:03
rurwinrurwin 05 Dec 2013 11:10
in discussion Hidden / Per page discussions » Raspberry Pi Start Here

The Raspberry Pi is not a good replacement for a PC. It is slow and it doesn't display Flash video.

However, the answer to your questions is "yes". It can do all that and, for most of it, it is good enough.

The sites you don't mention that will be problems are Youtube and Netflix. I think it is possible to get Youtube working, but probably only by installing a different browser. Netflix will probably never be supported.

You can get more advice over on the Raspberry Pi Forum. They're very friendly.

by rurwinrurwin, 05 Dec 2013 11:10
Sara Renee Violet Shimel (guest) 05 Dec 2013 09:50
in discussion Hidden / Per page discussions » Raspberry Pi Start Here

Hi,
This might be a silly question but I'm trying to get my brother into the idea of "DIY" projects. This seems like right up his alley. However, being 13, he's going to expect to be able to utilize Facebook, Instagram, etc. He's going to want to be able to upload and save images. That is possible, correct?

Also, is it possible to transfer files (images, videos, etc.) via the USB port?

Thanks!

by Sara Renee Violet Shimel (guest), 05 Dec 2013 09:50
Karen Urwin (guest) 18 Aug 2013 17:15
in discussion Hidden / Per page discussions » Debugging The Manuscript

The stuff about how you never did this in school all depends on whether you left at 15, were an arts student or were a science/maths student. As an arts student currently doing an MA, believe me, I understand all about drafting and redrafting!!

by Karen Urwin (guest), 18 Aug 2013 17:15
Stroppy Author (guest) 16 Aug 2013 05:53
in discussion Hidden / Per page discussions » On Being Stuck

I'll recommend this to my creative writing students - I think it will particularly help those who are science students most of the time and can't see the process as being anything remotely similar. Thank you!

by Stroppy Author (guest), 16 Aug 2013 05:53
Kriston (guest) 23 Sep 2012 03:15
in discussion Hidden / Per page discussions » Raspberry Pi Power Supplies

I have found that the length and quality of the cable matters if you expect to plug anything into the USB ports of the Raspberry Pi. I have lots of cables but the only ones that work reliably are of the three-foot variety.

I don't really know why, but when I use cables that are longer than three feet, they only work if plugged into a computer's USB hub and not a USB power supply such as the Nook Color charger. But, using the same charger and a shorter cable usually works. It's weird but not unexpected.

by Kriston (guest), 23 Sep 2012 03:15
Bob (guest) 06 Jun 2012 20:28
in discussion Hidden / Per page discussions » About Me

Good website, thanks.

73 de M0BOB.

by Bob (guest), 06 Jun 2012 20:28

I wouldn't. If the voltages are different even by a small amount you will get large currents flowing between the chargers which may damage them and will almost certainly mean the Pi wont work.

by rurwinrurwin, 05 Jun 2012 23:42
AndrewS (guest) 03 Jun 2012 12:16
in discussion Hidden / Per page discussions » Gold Horse

There seems to be an erroneous indentation on the line that says:
self.capabilities = set()

by AndrewS (guest), 03 Jun 2012 12:16
rurwinrurwin 30 May 2012 21:22
in discussion Hidden / Per page discussions » Gold Horse

There have been a few fixes. In fact I've just had to make a fix to let it work with Python 2.6, because that's what is on the Raspberry Pi. The if statement in line 101 (or wherever I've just made it move to) is valid Python.

by rurwinrurwin, 30 May 2012 21:22
JBeale (guest) 30 May 2012 01:07
in discussion Hidden / Per page discussions » Gold Horse

Maybe it's been fixed in the past few weeks? but I don't see that on line 100. I do see that line 101 is
if not (1 <= x <= boardsize and 1 <= y <= boardsize):

by JBeale (guest), 30 May 2012 01:07
cakiwi (guest) 17 May 2012 00:34
in discussion Hidden / Per page discussions » Gold Horse

Line 100 of the Gold Horse program is

if not (1 0:

which gets a syntax error, What should it be?

by cakiwi (guest), 17 May 2012 00:34
Kevin (guest) 16 May 2012 00:14
in discussion Hidden / Per page discussions » Raspberry Pi Power Supplies

So if you have a bunch of old cell phone chargers laying around, and none of them have enough current, can you wire a couple of them together to get the juice you need?

by Kevin (guest), 16 May 2012 00:14
Ed JohnsonEd Johnson 28 Jun 2011 12:43
in discussion Hidden / Per page discussions » Word 2010 Rant

I couldn't agree more! I don't run into it often, but it really trips up all of my users when it happens. And don't get me started on the Ribbon Bar. Maybe it is more intuitive for brand new users, but it still slows me down every time I have to poke around to find something.

by Ed JohnsonEd Johnson, 28 Jun 2011 12:43
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