Searching \ for '[ee] USB-A Male and case?' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=usb+male+case
Search entire site for: 'USB-A Male and case?'.

Exact match. Not showing close matches.
PICList Thread
'[ee] USB-A Male and case?'
2006\10\31@181614 by Harold Hallikainen

face
flavicon
face
I'm working on a USB adapter project where I'd like to put a SMALL circuit
board and a male USB type A connector in a small box and have a cable
leave the other end of the box. First off, I'm having trouble finding the
male type A USB connector. I find LOTS of receptacles, but no plugs!
Second, I'd like to find a STANDARD plastic housing that this connector
and circuit board could fit in. Pactec makes stuff like this for D
connectors, but I don't see anything for USB. Anyone familiar with such a
box? Ideally it'd have a crosssection about like the molded case of a
standard USB plug, but be a bit longer so we can fit our board in there. I
have an MMC/SD reader in a similar case. Anyone know of such a case and
connector?

THANKS!

Harold



--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2006\10\31@183335 by Shawn Wilton

picon face
You can get the connectors from Molex.  Here:  <
http://www.molex.com/cgi-bin/bv/molex/jsp/products/compare.jsp?Itemlist=133203,201795,208687,208728&Fam=iopn&FT_118=3390&FT_3402=3402&selorder=3402,3390&btnSearch.y=16&btnSearch.x=30&channel=Products&Lang=en-US&FT_479=0&FT_270=46998&BV_SessionID=@@@@0008194003.1162337502@@@@&BV_EngineID=cccdaddjfegehlmcflgcehedffgdfmk.0
>

That's the general link, may not work.  Here are some direct links:
<
http://www.molex.com/cgi-bin/bv/molex/jsp/products/datasheet.jsp?productid=208728&Fam=iopn&FT_118=3390&FT_3402=3402&selorder=3402,3390&btnSearch.y=16&Itemlist=133203,201795,208687,208728&btnSearch.x=30&channel=Products&Lang=en-US&FT_479=0&FT_270=46998&BV_SessionID=@@@@0008194003.1162337502@@@@&BV_EngineID=cccdaddjfegehlmcflgcehedffgdfmk.0
>
<
http://www.molex.com/cgi-bin/bv/molex/jsp/products/datasheet.jsp?productid=208687&Fam=iopn&FT_118=3390&FT_3402=3402&selorder=3402,3390&btnSearch.y=16&Itemlist=133203,201795,208687,208728&btnSearch.x=30&channel=Products&Lang=en-US&FT_479=0&FT_270=46998&BV_SessionID=@@@@0008194003.1162337502@@@@&BV_EngineID=cccdaddjfegehlmcflgcehedffgdfmk.0
>

I have not seen any through hole type A plugs.  If you find any, let me
know.



On 10/31/06, Harold Hallikainen <spam_OUTharoldTakeThisOuTspamhallikainen.org> wrote:
{Quote hidden}

> -

2006\10\31@185215 by Marcel duchamp

picon face
Harold Hallikainen wrote:
> I'm working on a USB adapter project where I'd like to put a SMALL circuit
> board and a male USB type A connector in a small box and have a cable
> leave the other end of the box. First off, I'm having trouble finding the
> male type A USB connector. I find LOTS of receptacles, but no plugs!

Digikey: AE10091-ND, CONN PLUG USB A-MALE SOLDER, US$0.28/100's


> Second, I'd like to find a STANDARD plastic housing that this connector
> and circuit board could fit in. Pactec makes stuff like this for D
> connectors, but I don't see anything for USB. Anyone familiar with such a
> box?

Have you tried these people?:
http://www.uniboxinfo.com/battery.html

They are a stones throw down the road from you:

Unibox Enclosures
3620 Sacramento Drive, Suite 101
San Luis Obispo, CA   93401
800-814-8667 or   805-785-0900


Maybe they will do a custom for you...

2006\10\31@193710 by Harold Hallikainen

face
flavicon
face

{Quote hidden}

Thanks for the info! The connector appears to be a cable mount instead of
pcb mount. Unibox doesn't appear to have a standard box that fits this
requirement, but, perhaps they can do something custom. I didn't even know
Unibox existed, and they're just across town from here! They're in the
same location as the old Engineered Components Company and Robison
Electronics, which did delay modules and little plastic boxes. John
Robison, who owned it, died a few years ago. Maybe Unibox is the current
incarnation. There's another plastic molder here in town (Amerex, I think)
that I did not know about until they had us build some robot control
boards for them...

So, any more ideas on making usb modules that hang out the back (or front)
of the computer?

THANKS!

Harold

--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2006\10\31@201548 by Harold Hallikainen

face
flavicon
face
Thanks! It looks like the links below are to receptacles instead of plugs.
through hole or SMT would be fine, but I need a plug (and a case).

Thanks!

Harold


{Quote hidden}

>> --

2006\10\31@211255 by Gerhard Fiedler

picon face
Harold Hallikainen wrote:

> So, any more ideas on making usb modules that hang out the back (or front)
> of the computer?

Given how little sturdy some USB connectors are, I think the module would
have to be very small and light for me to like it having it in the
connector. I probably would prefer a cable on both ends. If it's small and
light enough, then it shouldn't matter much to have a small "wart" in the
middle of the cable. If it is not small and light enough for this, it
probably isn't small and light enough for the plug.

Gerhard

2006\10\31@221108 by Harold Hallikainen

face
flavicon
face

> Harold Hallikainen wrote:
>
>> So, any more ideas on making usb modules that hang out the back (or
>> front)
>> of the computer?
>
> Given how little sturdy some USB connectors are, I think the module would
> have to be very small and light for me to like it having it in the
> connector. I probably would prefer a cable on both ends. If it's small and
> light enough, then it shouldn't matter much to have a small "wart" in the
> middle of the cable. If it is not small and light enough for this, it
> probably isn't small and light enough for the plug.
>
> Gerhard

True, a "wart" ma be the best solution. All I plan on putting in the case
is the connector and a CP2102 and a few resistors and capacitors. Seems
like it could fit in a connector shell.

Thanks!

Harold

--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2006\10\31@232849 by Shawn Wilton

picon face
No, they are plugs.  I have them sitting on my desk.  Sorry, doesn't look
like the links resolve.  Go to Molex, look up part number:  *48037-2200*



On 10/31/06, Harold Hallikainen <haroldspamKILLspamhallikainen.org> wrote:
{Quote hidden}


'[ee] USB-A Male and case?'
2006\11\01@010024 by William Chops Westfield
face picon face

>> any more ideas on making usb modules that hang out the
>>  back (or front) of the computer?

Are such modules technically "legal" according to the USB spec?
Perhaps that's why it's difficult to find a Male A PCB Mount
connector: any reputable manufacturer making one might find itself
on the USB committee's sh*t-list...  (not that there is any shortage
of flash, bluetooth, WLAN, and security dongles of this sort; there's
also no shortage of cables I'm quite sure aren't legal.)

Some of the flash drives seem to get by with little more than a
carefully shaped PCB either fabricated or shimmed to just the right
thickness...

BillW

2006\11\01@015518 by Shawn Wilton

picon face
>
>
> Are such modules technically "legal" according to the USB spec?
> Perhaps that's why it's difficult to find a Male A PCB Mount
> connector: any reputable manufacturer making one might find itself
> on the USB committee's sh*t-list...  (not that there is any shortage
> of flash, bluetooth, WLAN, and security dongles of this sort; there's
> also no shortage of cables I'm quite sure aren't legal.)



It's more like if you're not within spec, you don't get to use the logo.


--

Shawn Wilton (b9 Systems)
http://b9Systems.com  <- New web page

2006\11\01@030631 by Bob Axtell

face picon face
Harold Hallikainen wrote:
> I'm working on a USB adapter project where I'd like to put a SMALL circuit
> board and a male USB type A connector in a small box and have a cable
> leave the other end of the box. First off, I'm having trouble finding the
> male type A USB connector. I find LOTS of receptacles, but no plugs!
> Second, I'd like to find a STANDARD plastic housing that this connector
> and circuit board could fit in. Pactec makes stuff like this for D
> connectors, but I don't see anything for USB. Anyone familiar with such a
> box? Ideally it'd have a crosssection about like the molded case of a
> standard USB plug, but be a bit longer so we can fit our board in there. I
> have an MMC/SD reader in a similar case. Anyone know of such a case and
> connector?
>
> THANKS!
>
> Harold
>
>
>
>  
You can't find the small USB end ('A') because you are trying to break
the USB design rules in order
to make your product as small as possible. The USB organization takes a
very dim view of this, so unless
it is a prototype or a "one up", you need to use the "B" style. The
reason is that unless standards are rigidly
adhered to, the usefulness of the scheme will be compromised.

Their rule is that the 'A' end is always the HOST end of the cable, and
the peripheral is always the 'B' end
of the cable. Unless your project is a host, you are not complying with
their rules.

I, too (a natural rebel) was surprised by the strength of their
arguments. But once I understood their reasoning,
it all makes sense. If you must squeeze things down, use a miniature
version of the "B" end; the USB organization
can help you locate these; some digital cameras use these.

--Bob

2006\11\01@034037 by peter green

flavicon
face
> Their rule is that the 'A' end is always the HOST end of the cable, and
> the peripheral is always the 'B' end
> of the cable.
he said a MALE type A connector, in other words he wants to make a device that doesn't use a cable at all (like most flash drives, bluetooth dongles and similar)



2006\11\01@035517 by Bob Axtell

face picon face
peter green wrote:
>> Their rule is that the 'A' end is always the HOST end of the cable, and
>> the peripheral is always the 'B' end
>> of the cable.
>>    
> he said a MALE type A connector, in other words he wants to make a device that doesn't use a cable at all (like most flash drives, bluetooth dongles and similar)
>
>
>
>  
Ah! As usual, I misunderstood.

--Bob

2006\11\01@040110 by Mike Harrison

flavicon
face
On Tue, 31 Oct 2006 13:54:47 -0800 (PST), you wrote:

>I'm working on a USB adapter project where I'd like to put a SMALL circuit
>board and a male USB type A connector in a small box and have a cable
>leave the other end of the box. First off, I'm having trouble finding the
>male type A USB connector. I find LOTS of receptacles, but no plugs!
>Second, I'd like to find a STANDARD plastic housing that this connector
>and circuit board could fit in. Pactec makes stuff like this for D
>connectors, but I don't see anything for USB. Anyone familiar with such a
>box? Ideally it'd have a crosssection about like the molded case of a
>standard USB plug, but be a bit longer so we can fit our board in there. I
>have an MMC/SD reader in a similar case. Anyone know of such a case and
>connector?
>
>THANKS!
>
>Harold

This came up a while ago & someone did find an answer to the enclosure issue - I know it would crop
up again so bookmarked the site :
http://www.newageenclosures.com/category.aspx?categoryID=7&startpage=0

2006\11\01@042018 by Tony Smith

picon face
> >> any more ideas on making usb modules that hang out the  back (or
> >> front) of the computer?
>
> Are such modules technically "legal" according to the USB spec?
> Perhaps that's why it's difficult to find a Male A PCB Mount
> connector: any reputable manufacturer making one might find
> itself on the USB committee's sh*t-list...  (not that there
> is any shortage of flash, bluetooth, WLAN, and security
> dongles of this sort; there's also no shortage of cables I'm
> quite sure aren't legal.)
>
> Some of the flash drives seem to get by with little more than
> a carefully shaped PCB either fabricated or shimmed to just
> the right thickness...


Allow me to introduce the ReZap USB battery recharger -
http://users.tpg.com.au/users/p8king/rbc880.jpg.  

Simple idea, charge 2xAA or 2xAAA batteries off a USB port, or uses a Nokia
'phone charger.  Cable detaches, good or bad feature depending on your point
of view.

But the socket is a USB-A!  WTF, as is often heard.  In that (bad) picture
you can see a USB-A to USB-A cable.  Confuses the crap out of everyone I
show it to.  So now I have this weird cable.  As if the mini-B's weren't
annoying enough.  I wonder if Radio Shack stock USB A-A...

Bonus points - there is enough space to use the correct socket!  Gah!  The
thing is 25mm high, and it's mostly space!  The only reason I can think of
is aesthetics, the two power sockets (DC & USB) are the same height, so it
looks nice.  (or it's a bad joke, or USB-A sockets are 0.004 cents cheaper
than the USB-B - but tooling costs on that cable are...?)

And on the flash drives, there was a page the other day that pointed out
that veroboard tracks have the right spacing for USB power, and proceeded to
make a torch.

Tony

2006\11\01@042555 by Bob Axtell

face picon face
Mike Harrison wrote:
{Quote hidden}

VERY nice cases. good link, thanks.

--Bob

2006\11\01@051238 by Wouter van Ooijen

face picon face
> Bonus points - there is enough space to use the correct
> socket!  Gah!  The
> thing is 25mm high, and it's mostly space!  The only reason I
> can think of
> is aesthetics, the two power sockets (DC & USB) are the same
> height, so it
> looks nice.  (or it's a bad joke, or USB-A sockets are 0.004
> cents cheaper
> than the USB-B - but tooling costs on that cable are...?)

Prices for A-B and A-A cables from my supplier are the same. A-miniB is
a bit higher.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\11\01@063436 by Tony Smith

picon face
> > Bonus points - there is enough space to use the correct
> socket!  Gah!  
> > The thing is 25mm high, and it's mostly space!  The only
> reason I can
> > think of is aesthetics, the two power sockets (DC & USB)
> are the same
> > height, so it looks nice.  (or it's a bad joke, or USB-A
> sockets are
> > 0.004 cents cheaper than the USB-B - but tooling costs on
> that cable
> > are...?)
>
> Prices for A-B and A-A cables from my supplier are the same.
> A-miniB is a bit higher.
>
> Wouter van Ooijen


Sell many A-A ones?  Why?

They aren't supposed to exist...  The B end isn't supposed to either, but at
least that makes sense.

Tony

2006\11\01@065847 by Alan B. Pearce

face picon face
>Sell many A-A ones?  Why?

Often it is the only way to get a connector to a position where one can
easily plug in a memory stick without clambering around the back or under
the desk to get at the back of a PC.

Another reason is many memory sticks are of such a bulbous shape that one
cannot plug that and another USB plug into adjacent ports without stressing
the connectors on the PC, so the memory stick needs to be extended using a
cable with a plug that meets the USB standard outline.


2006\11\01@080939 by Timothy J. Weber

face picon face
Tony Smith wrote:
> But the socket is a USB-A!  WTF, as is often heard.  In that (bad) picture
> you can see a USB-A to USB-A cable.  Confuses the crap out of everyone I
> show it to.  So now I have this weird cable.  As if the mini-B's weren't
> annoying enough.  I wonder if Radio Shack stock USB A-A...

Is it my imagination, or was this more usual in the early days of USB?
I seem to remember seeing nothing but A-A cables for a while.  I was
giving an old PICkit 1 away a while ago, and the guy I gave it to (who
was fairly out of the loop) had never seen an A-B cable before and
thought it was not "real" USB.  I explained to him that it was in fact
the standard and he didn't seem to believe me.
--
Timothy J. Weber
http://timothyweber.org

2006\11\01@081800 by Wouter van Ooijen

face picon face
> >Sell many A-A ones?  Why?
>
> Often it is the only way to get a connector to a position
> where one can easily plug in a memory stick without
> clambering around the back or under
> the desk to get at the back of a PC.

You are talking about A-male-A-female. I often use such cables. One time
I was ready to give a class, but discoverd that I left my USB stick
(with the PP presentation) at home. Never make the same mistake again,
so I fastened my USB stick to my shoulder bag. A cable comes out of the
bag and connects to the computer, the stick does not leave the bag.

For those who think (maybe correctly) that such 'extension' cables
violate USB rules: they also exist as 'active extension' cables, with a
build-in one-socket hub.

But I was talking about A-male-A-male cables. They do exist, and the
price is (for me) almost the same as the strandard A-male-B-male. But I
have not yet seen a B-male-B-male or A-female-A-female or any other of
the more weird combinations. But Murphy dictates that they will exist
and some people will actually use them.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\11\01@081835 by Tony Smith

picon face
> >Sell many A-A ones?  Why?
>
> Often it is the only way to get a connector to a position
> where one can easily plug in a memory stick without
> clambering around the back or under the desk to get at the
> back of a PC.


The one I've got is plug-plug, not plug-socket.  It's not an extension cord,
just very odd.

Both the PC & the device have A sockets, the device is supposed to have a B.
There's no reason why this charger can't have a B socket.

Tony

2006\11\01@082333 by Wouter van Ooijen

face picon face
> Sell many A-A ones?  Why?

don't ask me

> They aren't supposed to exist...  The B end isn't supposed to
> either, but at least that makes sense.

but they are made and sold!

some manufacturers use A sockets because they are lower (fit in a DB25
jumperbox housing). a fellow teacher deliberately designed his ARM board
for classroom use with an A socket, because it reduced the incentive to
take it home.


Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\11\01@083259 by Howard Winter

face
flavicon
picon face
Alan,

On Wed, 1 Nov 2006 11:58:32 -0000, Alan B. Pearce wrote:

{Quote hidden}

That would be an A-Male to A-Female "extension" cable, such as Wouter's: USB-EXT (which seems to have the wrong photo, by the way!) and they
are very handy, but A-Male to A-Male cables are out there too, see Wouter's: CABLE-USB-1-5-A-A  

I think the latter's  the subject of the "Why?"  :-)

Cheers,


Howard Winter
St.Albans, England


2006\11\01@083957 by Harold Hallikainen

face
flavicon
face

>>
>> This came up a while ago & someone did find an answer to the enclosure
>> issue - I know it would crop
>> up again so bookmarked the site :
>> www.newageenclosures.com/category.aspx?categoryID=7&startpage=0
>>
>>

WONDERFUL! I knew you guys would come through!

Harold



--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2006\11\01@084228 by Harold Hallikainen
face
flavicon
face

>> This came up a while ago & someone did find an answer to the enclosure
>> issue - I know it would crop
>> up again so bookmarked the site :
>> www.newageenclosures.com/category.aspx?categoryID=7&startpage=0
>>
>>

OK, even more amazing... They are just a few blocks from me!

Harold


--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2006\11\01@084659 by Tony Smith

picon face
> Tony Smith wrote:
> > But the socket is a USB-A!  WTF, as is often heard.  In that (bad)
> > picture you can see a USB-A to USB-A cable.  Confuses the
> crap out of
> > everyone I show it to.  So now I have this weird cable.  As if the
> > mini-B's weren't annoying enough.  I wonder if Radio Shack
> stock USB A-A...
>
> Is it my imagination, or was this more usual in the early
> days of USB?
> I seem to remember seeing nothing but A-A cables for a while.
>  I was giving an old PICkit 1 away a while ago, and the guy I
> gave it to (who was fairly out of the loop) had never seen an
> A-B cable before and thought it was not "real" USB.  I
> explained to him that it was in fact the standard and he
> didn't seem to believe me.


That I could believe.  The original idea was that devices always had the
cable attached (stops you losing it, I guess), but the manufacturers got
upset.  Fair enough,  a digital camera with a metre of cable hanging off it
is pretty silly.

So the B type was invented, and the camera makers ignored that too and
invented their own anyway.

...but that was 10 years ago.  This is a new (1-2 years?) product.  What one
earth were they thinking?  They get a bunch of 10 year old cables for free?

Tony

2006\11\01@090655 by Alan B. Pearce

face picon face
>...but that was 10 years ago.  This is a new (1-2 years?) product.  What
>one
>earth were they thinking?  They get a bunch of 10 year old cables for free?

I suspect it was developed by someone who didn't have experience with USB,
and why the cables are supposed to be a certain way ...

The purchasing officer probably tore his hair out finding the parts ...

2006\11\01@091125 by Tony Smith

picon face
> > Sell many A-A ones?  Why?
>
> don't ask me
>
> > They aren't supposed to exist...  The B end isn't supposed
> to either,
> > but at least that makes sense.
>
> but they are made and sold!
>
> some manufacturers use A sockets because they are lower (fit
> in a DB25 jumperbox housing). a fellow teacher deliberately
> designed his ARM board for classroom use with an A socket,
> because it reduced the incentive to take it home.


But but but that's just silly.  And a PITA, like with the charger.  Special
cable my a***.  I've never seen an A-A plug cable , except for those file
transfer things.  Why are they so expensive anyway?

If they want low profile, why not use the mini-B?  That's what it's for.

So much for the USB standard then.  That must be a new record for 'least
time to break' it.  :)

Tony

2006\11\01@100039 by Wouter van Ooijen

face picon face
> That would be an A-Male to A-Female "extension" cable, such
> as Wouter's: USB-EXT (which seems to have the wrong photo, by
> the way!)

Thanks for the alert. I think it *is* an extension cable, but I can't
see for sure, so the photo is too small anyway.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\11\01@100601 by Wouter van Ooijen

face picon face
> > some manufacturers use A sockets because they are lower (fit
> > in a DB25 jumperbox housing). a fellow teacher deliberately
> > designed his ARM board for classroom use with an A socket,
> > because it reduced the incentive to take it home.
>
>
> But but but that's just silly.  And a PITA, like with the
> charger.  Special
> cable my a***.  I've never seen an A-A plug cable , except
> for those file
> transfer things.  Why are they so expensive anyway?

[file transfer thingies] Those are not just cables, they contain
electronics. At $10 .. $20 they are in the same price region as
usb-serial/parallel converters, which is not too expensive IMHO.

[plain silly] if you refer to the teacher I disagree. For him the cables
were the same price.

> If they want low profile, why not use the mini-B?  That's
> what it's for.

Mini-B cables cost slightly more, the connectors likewise, and they are
just a bit more difficult to get. At least they used to, a few years
ago.

> So much for the USB standard then.  That must be a new record
> for 'least time to break' it.  :)

Isn't that how you recognise a standard?

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu



2006\11\01@124128 by peter green

flavicon
face

> The purchasing officer probably tore his hair out finding the parts ...
A-A cables are easy to obtain stock items, if the small volume suppliers all have them (which they do) then i'd think the large volume suppliers would too.





2006\11\01@124129 by peter green

flavicon
face

> But but but that's just silly.  And a PITA, like with the
> charger.  Special
> cable my a***.  I've never seen an A-A plug cable
i've haven't actually seen an A-A cable (though i have seen them listed in catalogs) but i've seen a cable with two A plugs one end and one the other for a hard drive unit that wanted more power than a usb port can normally provide.

> , except for those file
> transfer things.  Why are they so expensive anyway?
because afaict they are essentially two USB network adaptors back to back. They are also a small market with most PCs now having network adaptors.

> If they want low profile, why not use the mini-B?  That's what it's for.
true, probablly not as robust or prototyping friendly though (A sockets look very prototyping friendly and i'd be very tempted to use one next time i do a PIC usb prototype of some sort)


> So much for the USB standard then.  That must be a new record for 'least
> time to break' it.  :)
as always standards are there to be proken


2006\11\01@143002 by Richard Prosser

picon face
Arern't USB A - A types used for "USB on the Go"?
RP

On 02/11/06, Wouter van Ooijen <EraseMEwouterspam_OUTspamTakeThisOuTvoti.nl> wrote:
{Quote hidden}

> -

2006\11\01@150145 by peter green

flavicon
face



> Arern't USB A - A types used for "USB on the Go"?
no on the go is done with a special socket type called mini-ab used in conjunction with mini-a to mini-b cables.



2006\11\01@150852 by Shawn Wilton

picon face
Yes, they are 5 pin connectors too.  The 5th pin is used to designate
host/slave.

<http://en.wikipedia.org/wiki/Usb>





On 11/1/06, peter green <plugwashspamspam_OUTp10link.net> wrote:
>
>
>
>
> > Arern't USB A - A types used for "USB on the Go"?
> no on the go is done with a special socket type called mini-ab used in
> conjunction with mini-a to mini-b cables.
>
>
>
> -

2006\11\02@132542 by slippyr4

picon face
perhaps the point of having an "A" socket on the device (and hence
it's charge cable is A-A) is to allow the device to power something
else when it's been charged. In a sort of battery pack fashion rather
than simply a battery charger

My iTrip for my iPod came with a car charger, where there is a
cigarrette ligher thingy with an A socket, and an A male to mini-B
male cable. Phones are often similar. So the itrip/ipod and many
mobile phones can be charged by plugging their lead's A plug into a
host port

With the A socket on the device, potentially charger cables like these
could be plugged in, and the rezap might pretend to be a Host port.

just a guess. probably wrong. Only logical explanation i can see for it.

2006\11\02@192447 by Tony Smith

picon face
> perhaps the point of having an "A" socket on the device (and
> hence it's charge cable is A-A) is to allow the device to
> power something else when it's been charged. In a sort of
> battery pack fashion rather than simply a battery charger
>
> My iTrip for my iPod came with a car charger, where there is
> a cigarrette ligher thingy with an A socket, and an A male to
> mini-B male cable. Phones are often similar. So the
> itrip/ipod and many mobile phones can be charged by plugging
> their lead's A plug into a host port
>
> With the A socket on the device, potentially charger cables
> like these could be plugged in, and the rezap might pretend
> to be a Host port.
>
> just a guess. probably wrong. Only logical explanation i can
> see for it.


That's not a bad idea, you should go make some.  

There's plenty of 'emergency' charge things around, where you plug in a few
AA or 9v batteries to keep your phone or whatever running.  You might need
to use to new NiMH bateries that don't go flat after a few months.

The Rezap charger isn't that smart though.

Tony

2006\11\03@030315 by slippyr4

picon face
On 03/11/06, Tony Smith <@spam@ajsmithKILLspamspamrivernet.com.au> wrote:
> That's not a bad idea, you should go make some.


ok, i hereby patent the idea!

2006\11\03@132234 by Tony Smith

picon face
> > That's not a bad idea, you should go make some.
>
> ok, i hereby patent the idea!


Something along these line:
<gizmodo.com/gadgets/portable-media/elecom-emergency-ipod-charger-loo
ks-ugly-get-the-job-done-211880.php>

They pop up every so often, usually for phones.

This one is interesting as it only has 2xAA batteries, meaning there's a
boost converter in there somewhere.  I've seen other iPod thingies that have
4xAA.  It also shrinks, I had a mains charger once that did that.  Handy for
travel.

That's why I got that little Rezap charger, do AA cells for a camera etc.
Finding a USB port for power isn't hard.  I had a quick look inside it and
wasn't impressed.  The only IC I could see was a 4060, a 14 bit timer.  So
the charge algorithm is probably 'run-for-10-hours-then-stop'.  Explains the
AA-AAA switch, just halve the time for AAA.  Still, it's small & light.

So a case with few NiHM cells, you'll probably need a boost circuit in there
somewhere, USB-B on one side, USB-A on the other.  Throw in a USB A-B cable,
PC-to-pack for charging, pack-to-device (mini-B might be better) to run it.
Or just plug the device straight to the USB-A.  Just like $deity intended.

Could be handy, now when camping you don't need to lug your laptop along to
power your USB toothbrush, the battery pack should keep it running for a few
days.

2500mAh cells, given USB is max 500mA per port, that's say 4 hours and up
run time.  Not bad.

Huh, I should make one before your patent comes thru  :)

You can now get car adapters, a cigarette lighter plug with a USB port, or a
wall wart with no cable, just a USB socket.  I like it, one wall wart for
any device.

And I found you can get USB A-A cables locally.
<http://www.comland.com.au/images/USB-AA-2.jpg>.  Why'd you'd want such an
abomination is beyond me, and you get to pay double the price.  (I'm happy
with that's how it was done before USB-B was invented.)

Tony

More... (looser matching)
- Last day of these posts
- In 2006 , 2007 only
- Today
- New search...