Raspberry PI Power

[Tyler Aviss]

I've run into similar issues with my pi. Wifi isn't very happy despite my
using a charger (from my Nexus 7) that is supposed to provide 2a
On Aug 2, 2013 8:10 AM, "Colin McGregor" <colin.mc151-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:

> Sorry about a subject line that sounds like a tacky children's
> cartoon, but it is an issue I am looking at.
>
> I wanted to set-up a Raspberry PI with a 19" LCD screen at my kitchen
> table. Connected to the Raspberry PI I had an Ourlink WiFi dongle and
> a Logitech Unifying receiver to support a wireless keyboard/mouse (*).
> Initial set-up with several different "1 amp" output transformers had
> the same result, the Raspberry PI ran, but the WiFi connection was
> unusable. Powering the Raspberry PI off a 4 port USB hub that has a
> 2.6 amp power supply and moving the WiFi dongle to the hub has
> resulted in a very solid set-up. So, power seems to be the issue, but
> where is the question. Am I looking at :
>
> - a Raspberry PI with noted accessories using more than 1 amp of power?
> - transformers that claim to be "1 amp" not putting out 1 amp to the
> Raspberry PI?
> - a Raspberry PI getting enough power, but not being able to pass
> enough to the accessories?
> - another issue I have not thought of?
>
> My ideal goal here is to have a LITTLE machine (**) that will let me
> read on-line news headlines while having breakfast, so I would like to
> be rid of the USB hub, ideally without spending more $ (in case anyone
> asks, the USB hub power supply has an odd-ball connector so can't be
> re-used directly with the Raspberry PI and the USB hub was bought
> several years ago for a magazine article I was writing (ie: when
> buying that USB hub, use with a Raspberry PI wasn't a consideration)).
>
> Thoughts?
>
> Thanks
>
>
>
> Colin.
>
> (*)  There is an issue with using both a keyboard and mouse with one
> Unifying receiver under Linux. The solution to the issue can be seen
> here :
> https://groups.google.com/forum/#!msg/linux.kernel/zYS6yddI8yU/9cMvg3k9xTYJ
> .
>
> (**) For the Raspberry PI I bought a case from these folks
> https://www.modmypi.com/shop . The nice thing about these cases is
> that you can screw them directly onto any monitor that has 75 mm VESA
> mounting holes (my 19" monitor being one such monitor). So, no
> Raspberry PI on the kitchen table, just a monitor that is now a bit
> thicker front to back...
> --
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