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Date: Mon, 24 Sep 2012 03:49:00 +0930
Message-ID: <CAAsPL6Rr4dpjYZfmZk4NtNZUWcihovTbOdDafSunP=fA_8A...@mail.gmail.com>
Subject: Re: [HACK-ADL] Re: Rasberry Pi, Peavey 1600 MIDI controller, USB to
MIDI interface and a 9 year old daughter
From: Ryan Leach <ryan.the.le...@gmail.com>
To: hackerspace-adelaide@googlegroups.com
Content-Type: multipart/alternative; boundary=047d7b339c27df209904ca62818c
--047d7b339c27df209904ca62818c
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You have confused each other i had to read it twice before i understood.
The idea Is to make a modified cable _for_ a hub that won't allow power to
back-feed right?
On Sep 23, 2012 9:09 PM, "Sam Hodge" <sam.ho...@gmail.com> wrote:
> What chipset is the OfficeOne powered USB hub? Have you tested it with the
> raspberry Pi and seen if it allows you to hot plug devices into the
> raspberry Pi ? Does it leak charge into the USB host ?
> Can you power the raspberry Pi from it ?
>
> I have spent $7 on one 7 port USB hub and $16 on another 7 port hub.
>
> I don't want to spend another $12 on an untested device, but if a trip to
> Kmart solves my problem, that would be a great solution.
>
> Sam
>
> Sent from my iPhone
>
> On 23/09/2012, at 3:40 PM, Andrew Helgeson <cyberte...@gmail.com> wrote:
>
> You dont need to spend $50 on a "fancy" hub! Just go buy an "OfficeOne"
> powered hub from k mart!
> Mine cost me $12!
> There is a bit more to a hub than some diodes and a plug pack
>
> Andrew
>
> On 23/09/2012 1:39 PM, "Sam Hodge at GMail" <sam.ho...@gmail.com> wrote:
>
> I dont really understand electronics that well, but I really would
> like plentiful reliable USB ports on my Raspberry Pi without spending
> $50+ on a fancy USB hub.
>
> Could you make a schematic, or instructions, that a eletronics n00b
> with a USB cable to cut up and a shopping list from Jaycar a soldering
> iron and a multimeter could walk thier way through.
>
> It should be an easy mod, make the data flow in both directions, but
> dont let the current and voltage flow from the usb hub back to the
> Raspberry Pi, or am I over simplfying the issue?
>
> Now for the good news:
>
> I got "motion" http://www.lavrsen.dk/foswiki/bin/view/Motion/WebHome
> working perfectly for about 24+ hours uptime, using a uvcvideo kernel
> and v4l2 and my Logitech Quickcam E3500, 640x480, 8 bits per RGB
> channel with a time and date stamp burned in, server up to a httpd
> that comes with motion.
>
> If anybody is really curious I can give you and IP and port number and
> you can see the stream for yourself.
>
> There is a 99c iOS app (CamView) that allows me to view the MotionJPEG
> stream, so its like I am living in the future, I can log in from
> anywhere and view the video stream on my iPhone.
>
> For the record this was setup by plugging the cam into the RPi in
> built port, along with a keyboard and doing the setup via ssh from
> another computer, so I could use the mouse and a browser to test.
>
> motion can also dump JPEG's to disk when the image changes, so you can
> find out which cat has been taking a dump in your backyard, or other
> more interesting wildlife spotting applications.
>
> sam
>
>
> On Fri, Sep 21, 2012 at 2:44 PM, Sam Birbeck <s...@griml.in> wrote:
> > Just filing this here as anoth...
>
> --
> You received this message because you are subscribed to the Google Groups
> "HackerSpace - Adelaide, South Australia" group.
> To post to this group, send email to hackerspace-adelaide@googlegroups.com
> .
> To unsubscribe from this group, send email to
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> http://groups.google.com/group/hackerspace-adelaide?hl=en.
>
> --
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>
--047d7b339c27df209904ca62818c
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<p>You have confused each other i had to read it twice before i understood.=
The idea Is to make a modified cable _for_ a hub that won't allow powe=
r to back-feed right?</p>
<div class=3D"gmail_quote">On Sep 23, 2012 9:09 PM, "Sam Hodge" &=
lt;<a href=3D"mailto:sam.ho...@gmail.com">sam.ho...@gmail.com</a>> wrote=
:<br type=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"margin=
:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"auto"><div>What chipset is the OfficeOne powered USB hub? Have =
you tested it with the raspberry Pi and seen if it allows you to hot plug d=
evices into the raspberry Pi ? Does it leak charge into the USB host ?</div=
>
<div>Can you power the raspberry Pi from it ?</div><div><br></div><div>I ha=
ve spent $7 on one 7 port USB hub and $16 on another 7 port hub.</div><div>=
<br></div><div>I don't want to spend another $12 on an untested device,=
but if a trip to Kmart solves my problem, that would be a great solution.<=
/div>
<div><br></div><div>Sam<br><br>Sent from my iPhone</div><div><br>On 23/09/2=
012, at 3:40 PM, Andrew Helgeson <<a href=3D"mailto:cyberte...@gmail.com=
" target=3D"_blank">cyberte...@gmail.com</a>> wrote:<br><br></div><block=
quote type=3D"cite">
<div><p>You dont need to spend $50 on a "fancy" hub! Just go buy =
an "OfficeOne" powered hub from k mart!<br>
Mine cost me $12!<br>
There is a bit more to a hub than some diodes and a plug pack</p>
<p>Andrew</p>
<p></p><blockquote type=3D"cite">On 23/09/2012 1:39 PM, "Sam Hodge at =
GMail" <<a href=3D"mailto:sam.ho...@gmail.com" target=3D"_blank">sa=
m.ho...@gmail.com</a>> wrote:<br><br>I dont really understand electronic=
s that well, but I really would<br>
like plentiful reliable USB ports on my Raspberry Pi without spending<br>
$50+ on a fancy USB hub.<br>
<br>
Could you make a schematic, or instructions, that a eletronics n00b<br>
with a USB cable to cut up and a shopping list from Jaycar a soldering<br>
iron and a multimeter could walk thier way through.<br>
<br>
It should be an easy mod, make the data flow in both directions, but<br>
dont let the current and voltage flow from the usb hub back to the<br>
Raspberry Pi, or am I over simplfying the issue?<br>
<br>
Now for the good news:<br>
<br>
I got "motion" <a href=3D"http://www.lavrsen.dk/foswiki/bin/view/=
Motion/WebHome" target=3D"_blank">http://www.lavrsen.dk/foswiki/bin/view/Mo=
tion/WebHome</a><br>
working perfectly for about 24+ hours uptime, using a uvcvideo kernel<br>
and v4l2 and my Logitech Quickcam E3500, 640x480, 8 bits per RGB<br>
channel with a time and date stamp burned in, server up to a httpd<br>
that comes with motion.<br>
<br>
If anybody is really curious I can give you and IP and port number and<br>
you can see the stream for yourself.<br>
<br>
There is a 99c iOS app (CamView) that allows me to view the MotionJPEG<br>
stream, so its like I am living in the future, I can log in from<br>
anywhere and view the video stream on my iPhone.<br>
<br>
For the record this was setup by plugging the cam into the RPi in<br>
built port, along with a keyboard and doing the setup via ssh from<br>
another computer, so I could use the mouse and a browser to test.<br>
<br>
motion can also dump JPEG's to disk when the image changes, so you can<=
br>
find out which cat has been taking a dump in your backyard, or other<br>
more interesting wildlife spotting applications.<br>
<font color=3D"#888888"><br>
sam<br>
</font><p><font color=3D"#500050"><br>On Fri, Sep 21, 2012 at 2:44 PM, Sam =
Birbeck <<a href=3D"mailto:s...@griml.in" target=3D"_blank">s...@griml.in<=
/a>> wrote:<br>> Just filing this here as anoth...</font></p></blockq=
uote>
<p></p>
<p></p>
-- <br>
You received this message because you are subscribed to the Google Groups &=
quot;HackerSpace - Adelaide, South Australia" group.<br>
To post to this group, send email to <a href=3D"mailto:hackerspace-adelaide=
@googlegroups.com" target=3D"_blank">hackerspace-adelaide@googlegroups.com<=
/a>.<br>
To unsubscribe from this group, send email to <a href=3D"mailto:hackerspace=
-adelaide+unsubscribe@googlegroups.com" target=3D"_blank">hackerspace-adela=
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For more options, visit this group at <a href=3D"http://groups.google.com/g=
roup/hackerspace-adelaide?hl=3Den" target=3D"_blank">http://groups.google.c=
om/group/hackerspace-adelaide?hl=3Den</a>.<br>
</div></blockquote></div>
<p></p>
-- <br>
You received this message because you are subscribed to the Google Groups &=
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To post to this group, send email to <a href=3D"mailto:hackerspace-adelaide=
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To unsubscribe from this group, send email to <a href=3D"mailto:hackerspace=
-adelaide%2Bunsubscribe@googlegroups.com" target=3D"_blank">hackerspace-ade=
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For more options, visit this group at <a href=3D"http://groups.google.com/g=
roup/hackerspace-adelaide?hl=3Den" target=3D"_blank">http://groups.google.c=
om/group/hackerspace-adelaide?hl=3Den</a>.<br>
</blockquote></div>
--047d7b339c27df209904ca62818c--
Message from discussion Rasberry Pi, Peavey 1600 MIDI controller, USB to MIDI interface and a 9 year old daughter
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