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Re: [LUG] Powering Raspberry Pi from DC PSU?


On Tue, 12 Nov 2013 16:43:06 +0000 (GMT)
Gordon Henderson <gordon+lug@xxxxxxxxxx> wrote:

Hello Gordon,

>On Tue, 12 Nov 2013, Brad Rogers wrote:
>> Power to microUSB /seems/ to be unique to the Pi.  So far, I've not
>> been able to locate a power to ÂUSB cable,
>All the mobile phones & tablets that have passed through this house in
>the past 3 years have used ÂUSB for charging... It's fairly standard

Yes, indeed.  I was inexplicit.  What I /meant/ was that ready made
power-USB cables seem to be unavailable with the ÂUSB connector.  Of
course, many power brick phone chargers come with a ÂUSB on the end.

>Powering the Pi via the 5V line on the GPIO conector is fine. Many
>people do it, myself included - as well as RPi foundation members...
>It's "OK". What you lose is protection from the on-board polyfuse on
>the ÂUSB input port - some say that's not a bad thing as the polyfuse
>drops a few mV anyway... Some protection might be prudent though...

A few mV drop is probably fine compared with a 5V i/p.  Depends what you
mean by a "few" of course.   :-)

>I'd just chop off the barrel connector and make up something to fit
>the GPIO...

You and me both.  If Rob doesn't feel up to it there are obviously
plenty of people here that are more than capable doing the job for him.

 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
Life's short, don't make a mess of it
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