[TriEmbed] Raspberry Pi 2 rocks...

Fri Apr 3 14:47:48 CDT 2015

Kyle,

I'm betting there could be an issue with crosstalk between the video and
audio in the cabling which means you may need a cable that has two
independent sets of shielded wires. Two shielded for audio and one shielded
for video.

Actually, yes I was giving this some thought and the reason they separated
it like this may be to cut down on crosstalk, though that would be negated
with the wrong type of cable as I mentioned above.

Carl

On Fri, Apr 3, 2015 at 3:43 PM, Kyle Thorson <kthorson at pobox.com> wrote:

> Is this new style any better than the original?  Using the ground to
> separate the video from the audio.  Just curious.
>
> Also, it seems that some camcorder plugs are also non-standard.  I have
> been reading about lots of people finding the the Yellow and Red leads
> swapped.
>
> Kyle
>
> On Fri, Apr 3, 2015 at 3:40 PM, Carl Nobile <carl.nobile at gmail.com> wrote:
>
>> Ah, Didn't see your second post, I bet it was Apple that decided to break
>> with tradition and others followed suit to be compatible.
>>
>> Here's another link that also shows the connections
>> http://computers.tutsplus.com/tutorials/the-raspberry-pi-b-explored-and-explained--cms-21821
>>
>> Actually there is a standard and it dates back to early telephone days,
>> but it's been broken which means the standard is no longer a standard any
>> more, bummer.
>>
>>
>>
>> On Fri, Apr 3, 2015 at 3:14 PM, Rodney Radford <ncgadgetry at gmail.com>
>> wrote:
>>
>>> Carl, please look at the link I provided - the sleeve is not always
>>> ground and is not for the Raspberry Pi 2 and several other devices listed
>>> on that link.
>>>
>>> There is no standard, unfortunately. ..
>>> On Apr 3, 2015 3:06 PM, "Carl Nobile" <carl.nobile at gmail.com> wrote:
>>>
>>>> Kyle,
>>>>
>>>> Off the cuff I would say any stereo cable would work. Like an extension
>>>> headphone cable. All audio connectors of this type have a at least  a tip,
>>>> rings and sleeve. The sleeve is always the ground and the other would be
>>>> left and right channels. In the case of an RPi the tip is the microphone
>>>> and the ring is video and the sleeve is the ground for both.
>>>>
>>>> Carl
>>>>
>>>>
>>>> On Fri, Apr 3, 2015 at 1:38 PM, Kyle Thorson <kthorson at pobox.com>
>>>> wrote:
>>>>
>>>>> I ran across that URL as well.  That is the best explanation I have
>>>>> come across. I verified that my cable has ground wired to the ring at the
>>>>> sleeve.  The RPi2 requires video to be wired at the sleeve and ground as
>>>>> the next ring.  I was hoping someone might know where to find a cable that
>>>>> is wired the correct way for the Pi.  Is the RPi2's layout a UK thing? I
>>>>> may just make my own cable, but I didn't want to mess with that if I could
>>>>> help it.
>>>>>
>>>>> Kyle
>>>>>
>>>>> On Fri, Apr 3, 2015 at 11:05 AM, Rodney Radford <ncgadgetry at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Kyle, this article describes the correct pinout for that cable:
>>>>>>
>>>>>>
>>>>>> http://www.raspberrypi-spy.co.uk/2014/07/raspberry-pi-model-b-3-5mm-audiovideo-jack/
>>>>>>
>>>>>> Not all 4-wire to RCA cables are wired the same way as there is no
>>>>>> standard for this cable.
>>>>>>
>>>>>>
>>>>>> On Thu, Apr 2, 2015 at 3:30 PM, Kyle Thorson <kthorson at pobox.com>
>>>>>> wrote:
>>>>>>
>>>>>>> How any of you are playing with the Pi?  I just picked up a RPi2 and
>>>>>>> need to find a working composite cable for it.  The one I have on hand
>>>>>>> isn't wired the same way as the RPi2.  I need to find a cable with a 3.5
>>>>>>> side in the configuration from the sleeve: video, ground, audio, audio.  I
>>>>>>> am pretty sure my cable has ground in the wrong place. I am going to check
>>>>>>> which ring is ground tonight. I was about to order a new cable, but no one
>>>>>>> lists their wiring diagrams.  Does anyone know of a particular brand of
>>>>>>> cable that works with the RPi2?
>>>>>>>
>>>>>>> Thanks!
>>>>>>>
>>>>>>> Kyle
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Apr 2, 2015 at 2:50 PM, Rodney Radford <ncgadgetry at gmail.com
>>>>>>> > wrote:
>>>>>>>
>>>>>>>> This is an interesting review of the new Raspberry Pi 2.  I really
>>>>>>>> liked some of the quotes and comments that state that the Pi was never
>>>>>>>> meant to be a cheap way to have a general purpose computer. It was
>>>>>>>> initially designed as an educational system and is being heavily used as an
>>>>>>>> embedded system.  If you take into consideration it's market, it is still a
>>>>>>>> great product.
>>>>>>>>
>>>>>>>> There are other, faster, embedded systems - some at a reasonable
>>>>>>>> price point to the Pi, but when you compare the cost, features, ease of
>>>>>>>> use, and the long list of developed apps/tools/libraries for it, it is in a
>>>>>>>> class by itself.
>>>>>>>>
>>>>>>>>
>>>>>>>> http://eengenious.com/raspberry-pi-2-the-reviews-are-in-this-beast-rocks/
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Triangle, NC Embedded Computing mailing list
>>>>>>>> TriEmbed at triembed.org
>>>>>>>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>>>>>>>> TriEmbed web site: http://TriEmbed.org
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Triangle, NC Embedded Computing mailing list
>>>>> TriEmbed at triembed.org
>>>>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>>>>> TriEmbed web site: http://TriEmbed.org
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> -------------------------------------------------------------------------------
>>>> Carl J. Nobile (Software Engineer)
>>>> carl.nobile at gmail.com
>>>>
>>>> -------------------------------------------------------------------------------
>>>>
>>>
>>
>>
>> --
>>
>> -------------------------------------------------------------------------------
>> Carl J. Nobile (Software Engineer)
>> carl.nobile at gmail.com
>>
>> -------------------------------------------------------------------------------
>>
>
>

-- 
-------------------------------------------------------------------------------
Carl J. Nobile (Software Engineer)
carl.nobile at gmail.com
-------------------------------------------------------------------------------
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.triembed.org/pipermail/triembed_triembed.org/attachments/20150403/634176c9/attachment.htm>