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by dhb
Wed May 09, 2012 12:22 am
Forum: General discussion
Topic: Maker Faire Bay Area, May 19-20
Replies: 23
Views: 9570

Re: Maker Faire Bay Area, May 19-20

<t>(Haven't been to the forum for a while, life got busy, so I didn't see this when it was posted.  But I searched for Maker Faire here when I noticed:)<br/> <br/> Eben's presentation is scheduled at the same time as Adam Savage!?!!<br/> <br/> Tell them that's no fair and ask for an adjustment.  (Gi...
by dhb
Sun Jan 22, 2012 5:31 pm
Forum: General discussion
Topic: Resource for learning about linux?
Replies: 33
Views: 6763

Re: Resource for learning about linux?

<t>Oh, for a general introduction to a topic I've been very happy with O'Reilly books.  As books, they are behind the current state, but they've always been well written, practical, and easy to understand.  I can quickly get the overview and the basics and then be more productive when I start googli...
by dhb
Sun Jan 22, 2012 5:14 pm
Forum: General discussion
Topic: Resource for learning about linux?
Replies: 33
Views: 6763

Re: Resource for learning about linux?

<t>The problem really is multi-faceted.  The original question said it was about the kernal, but specific questions and the follow discussion were really not kernal related.  I think this is a case where tackling specific problems is more productive.  E.g:<br/> <br/> - "I want to learn to install pa...
by dhb
Sat Jan 21, 2012 6:23 pm
Forum: General discussion
Topic: Raspberry Pi for commercial use
Replies: 27
Views: 14066

Re: Raspberry Pi for commercial use

<t>From what they've said publicly I doubt there is any issue using Raspberry Pi that you wouldn't have using any other retail product.  However, I suspect there are all sorts of issues with using general retail products in products that hobbyists don't ever think about and, given their limited reso...
by dhb
Sun Jan 15, 2012 6:50 am
Forum: Off topic discussion
Topic: Soldering iron recommendations
Replies: 44
Views: 16385

Re: Soldering iron recommendations

<r>To anyone in the US still looking for an economy soldering iron, Fry's has a "50 Watt Solder Station" in this weeks sale (thru next Thursday) for $14.99.  It is described as having "Manual Temperature Setting" in the ad.  I was curious about it and grabbed one from the local store.  The iron, a s...
by dhb
Sun Jan 08, 2012 8:57 pm
Forum: General discussion
Topic: The secret of (lost) computer interest
Replies: 17
Views: 4306

Re: The secret of (lost) computer interest

<t>John Beetem said: <br/> <br/> ... You kids get off my lawn!<br/> <br/> I said that to my kid the other day and she looked at me like I'd lost my mind.  She actually looked down at the hardwood floor under her feet.  I guess we both getting old enough even the meme has passed.  <br/> <br/> I think...
by dhb
Mon Jan 02, 2012 8:48 pm
Forum: Off topic discussion
Topic: Soldering iron recommendations
Replies: 44
Views: 16385

Re: Soldering iron recommendations

<t>I can't help with UK brands.  (Weller has a good reputation, though Hakko seems to be the value choice here.)<br/> <br/> A couple things to consider though.  The biggest problems I've seen with cheap irons is too large of a tip and lack of heat.  So I'd first look for availability of replacement ...
by dhb
Thu Dec 01, 2011 11:53 pm
Forum: General discussion
Topic: How different are the A and B boards?
Replies: 9
Views: 1641

Re: How different are the A and B boards?

How skilled? With what specialized rework equipment?

Reworking boards has already been discussed and I wouldn\'t say you couldn\'t, but I\'m confident most of us wouldn\'t have the equipment or skill.
by dhb
Wed Nov 23, 2011 10:38 pm
Forum: General discussion
Topic: $30 Shipped, 32GB, Class 10 SD, today only
Replies: 8
Views: 2040

Re: $30 Shipped, 32GB, Class 10 SD, today only

<t>I know a single data point doesn\'t make a valid statistical analysis, but I just had a Centon 32GB SDHC die. Well start throwing bit errors. (I don\'t remember how long I used it, as /home on an EeePC running Ubuntu 10.10, maybe almost a year. I didn\'t try for warranty replacement, I just tosse...
by dhb
Wed Nov 23, 2011 9:08 pm
Forum: General discussion
Topic: Boot from USB
Replies: 9
Views: 1679

Re: Boot from USB

This was ask & answered, use the search function or maybe someone who remembers better will point you to it.

Short answer is yes & no. No, not natively, but with a little software development it should be possible.
by dhb
Tue Nov 22, 2011 4:44 am
Forum: Other projects
Topic: PCB Etching Services
Replies: 42
Views: 7701

Re: PCB Etching Services

<t>Quote from Lob0426 on September 9, 2011, 04:35<br/> You will not find very many U.S. schools handing a soldering iron to an 8 year old or even a 12 year old. Sorry it just is not likely!<br/> <br/> As my brother just pointed out. The school will hand a kid a football so he can go out and break hi...
by dhb
Tue Nov 22, 2011 2:56 am
Forum: Other projects
Topic: JTAG adapter
Replies: 12
Views: 18433

Re: JTAG adapter

<r>Out of the box, I doubt it.<br/> <br/> If you were willing to do some coding, I don't see why not. (Though I wouldn't know everything needed.) Several times I've worked on projects that have build JTAG controllers by bit-banging GPIO pins. You'd also need something listening and responding on the...
by dhb
Tue Nov 22, 2011 2:50 am
Forum: Off topic discussion
Topic: YOU SUCK: the venting thread
Replies: 948
Views: 150686

Re: YOU SUCK: the venting thread

<r>Quote from Svartalf on November 21, 2011, 23:17<br/> ...<br/> <br/> I've found that they're keeping the online information about inventory pretty much in lock-step with the store's, so unless they're showing only one of an item at the location, you're planning on buying from, the odds are fairly ...
by dhb
Thu Nov 17, 2011 9:32 pm
Forum: Off topic discussion
Topic: YOU SUCK: the venting thread
Replies: 948
Views: 150686

Re: YOU SUCK: the venting thread

<r>I guess Bacan nails it with, "Mega Stores, You Love to Hate 'em, until you need what they have in stock." But I have to add it sucks hitting three Fry's and finding they're all out of the stock you wanted.<br/> <br/> (I was going to tease him. An hour drive? How do you survive? <E>:-)</E> But the...
by dhb
Tue Oct 25, 2011 10:14 pm
Forum: General discussion
Topic: Power supply news!
Replies: 176
Views: 20761

Re: Power supply news!

<t>(1) an LED draws current based on the voltage, but very tiny changes in voltage make very large changes in current. I mentioned it as a simple circuit where a resistor is commonly used to limit current and tried to explain why & how. I was thinking it might be where the resistor idea came fro...
by dhb
Tue Oct 25, 2011 9:10 pm
Forum: General discussion
Topic: Power supply news!
Replies: 176
Views: 20761

Re: Power supply news!

<t>It depends on the circuit. A very simple circuit that often uses a resister is with an LED. The LED produces light (roughly) proportional to currently. Its I-V curve is also non-linear, so it drops almost the same voltage at any current. That makes it easy to specify a resistor to limit the curre...
by dhb
Tue Oct 25, 2011 8:43 pm
Forum: General discussion
Topic: Power supply news!
Replies: 176
Views: 20761

Re: Power supply news!

<r>[quote]<B><s>[b]</s>Quote from liamfraser280 on October 25, 2011, 19:44<e>[/b]</e></B><br/> I have a 5v 2000mA power adapter. Does anyone know if/how a circuit like this would work?...[/quote]<br/> <br/> Ohm\'s Law says you with 5v on the left you\'ll only have 5v on the right if you have 0mA cur...
by dhb
Thu Oct 20, 2011 9:34 pm
Forum: General discussion
Topic: Power supply news!
Replies: 176
Views: 20761

Re: Power supply news!

Yeah! My first choice, those are all over here in the U.S. these days. I\'m just glad they\'ll become common enough they work for your primary market too.
by dhb
Sat Oct 01, 2011 4:03 am
Forum: General discussion
Topic: Raspberry Pi Bootup Sound Discussion
Replies: 23
Views: 3143

Re: Raspberry Pi Bootup Sound Discussion

<r>I\'m with Kyle on silent, but I thought that\'s why Ubuntu made the audio mute sticky between power ons. So I say, creative folk knock yourselves out and find just the right jingle for the pre-teens! <E>:-)</E><br/> <br/> (Please not the Jeopardy song. Sorry to all the non-US folk. Jeopardy is a ...
by dhb
Wed Sep 28, 2011 8:32 pm
Forum: Off topic discussion
Topic: Tell me how you did it
Replies: 13
Views: 2323

Re: Tell me how you did it

<t>nobbit,<br/> <br/> the way this project was done is closer to the way a company would design a product than the way most of us would need to do it at home. To see how a hobbyist might approach something like this you might have more luck in a hobbyist forum. If you don't have a specific hobby tha...

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