Re: [OT] iPad query...

[Phillip Harris <phil@xxxxxxxxxxx>]

Sounds about par for the course with anything though - stuff the wrong
tranny up it and byebye. Solution - don't stick a wrong tranny up it. :-D

Phil

On 16 Mar 2011, at 23:58, Kevin Hawkins wrote:

> I haven't been following this thread but it seems if you include a DC
> jack allowing direct voltage application to the USB lines that it
> potentially could damage a lot of kit if the wrong voltage (PSU) was
> used ... or is there some protection somewhere ?
>
>    K
>
>  On 16/03/2011 19:40, Neil Wrightson wrote:
>> Hi Dave,
>>
>> A small comment.
>> I find star pattern devices like your model take up to much room
on the
>> desk. The box is small but when leads are plugged in it turns into
an
>> octopus 200..300mm in diameter.
>> I feel it's better to have all leads out the back and maybe just a
power led
>> on the front.
>>
>>
>> Regards,
>>
>> Neil Wrightson.
>>
>>
>>
>>   _____
>>
>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
>> Dave McLaughlin
>> Sent: Wednesday, 16 March 2011 10:28 PM
>> To: ukha_d@xxxxxxx
>> Subject: RE: [ukha_d] [OT] iPad query...
>>
>>
>>
>>
>> Hi Phil and all,
>>
>> I have now added the 2.5mm jack to the PCB design. See here.
>>
>> http://www.axoninstruments.biz/download/iPadDualAdaptor.jpg
>>
>> I have arrange it so that if you have a USB power adaptor
connected and you
>> plug in the external power supply via the jack plug it disconnects
the USB
>> supply to avoid them shorting out and the need for diodes.
>>
>> There is a 3D PDF you can download and rotate around here. Just
open with
>> Adobe Reader and click on the image to enable the 3D mode.
>>
>> http://www.axoninstruments.biz/download/iPadUSBAssembly2.pdf
>>
>>
>> Dave...
>> ---
>> Very funny Scotty, now beam down my clothes!!!
>> ---
>>
>> From: ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
>> [mailto:ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
 ] On Behalf
>> Of
>> Phil Harris
>> Sent: 16 March 2011 07:32
>> To: ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
>> Subject: Re: [ukha_d] [OT] iPad query...
>>
>>
>> Definitely up for that - happy to paypal you some funds to
contribute to
>> costs too of course...
>>
>> Have a few USB hub PSUs flapping around - might be worth popping
on a DC
>> jack as well (or instead) into the design so the iPad psu can be
kept for
>> other use?
>>
>> Phil
>>
>> Sent from another bloody fruit-based portable device...
>>
>> On 15 Mar 2011, at 16:21, "Dave
McLaughlin"<dave_mclaughlin@xxxxxxx
>> <mailto:dave_mclaughlin%40nerdshack.com>
>> <mailto:dave_mclaughlin%40nerdshack.com>
 >  wrote:
>>
>>> Hi Phil,
>>>
>>> I have a PCB to get made up in about a week or so's time when
the design
>> is
>>> completed. I could add a couple of these to the order seeing
as they would
>>> be cheap enough. I'll then build you one and send it to you
(PCB with
>>> connectors only, no enclosure). If it works, then I can
consider making a
>>> few up if there is enough interest. There is no reason it
shouldn't work
>> as
>>> the connection is simple. There is also the possibility of
fitting a
>>> standard power input connector for a wall wart type power
supply with 5V
>> at
>>> 2A, to allow your idea of a cheaper solution. Ideal for the
office etc.
>>>
>>> Let me know what you think?
>>>
>>> Dave...
>>> ---
>>> Very funny Scotty, now beam down my clothes!!!
>>> ---
>>>
>>>
>>>
>>> From: ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
>> <mailto:ukha_d%40yahoogroups.com>
>> [mailto:ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
>> <mailto:ukha_d%40yahoogroups.com>
 ] On Behalf
>> Of
>>> Phil Harris
>>> Sent: 15 March 2011 21:52
>>> To: ukha_d@xxxxxxx<mailto:ukha_d%40yahoogroups.com>
>> <mailto:ukha_d%40yahoogroups.com>
>>> Subject: Re: [ukha_d] [OT] iPad query...
>>>
>>>
>>> Never got chance to try it at my end but yes - I was happy to
have an
>>> external PSU connected ... Of course I guess any 5v 2a (or
greater) supply
>>> would be usable and much cheaper?
>>>
>>> Would still lime to get a few of these made up so I can sync
and charge A
>>> few devices at a time.
>>>
>>> Phil
>>>
>>>
>>>
>>>
>>> [Non-text portions of this message have been removed]
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
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