[TriLUG] Raspberry Pi Power Supply

[Pete Soper]

On 03/13/2013 05:02 PM, R Radford wrote:
> The Raspberry Pi A and B boards are fused at 0.75A at the input so
> can't draw more than this, so a 2A supply will be more than adequate
> for the Raspberry Pi and any directly attached USB peripherals.
Not any, just a few. :-)

We may be saying the same thing:
    Putting a >.75A power supply into the microUSB was relevant to a 
small number of early RPIs but is now a worthless urban legend that 
needs to be stamped out of existence.
    Powered USB hubs are the only way to run power-hungry peripherals, 
practically defines as "more than a plain keyboard and mouse."

-Pete

>
> If you run power hungry USB peripherals such as an external HD or
> higher power WiFi adapter, you will need to run an externally powered
> USB hub anyway to provide power to those peripherals.
>
> If you were to buy something new, I would go with a decent powered USB
> hub as you can use it to both power the Raspberry Pi as well as
> provide powered USB outputs.  However, since you already have a 2A
> supply, I see no reason to buy anything else.
>
> On Wed, Mar 13, 2013 at 3:21 PM, John Mitchell <john280z at gmail.com> wrote:
>> Should be OK if your USB peripherals aren't to many(and too power hungry).
>>
>> john mitchell
>>
>>
>> On Wed, Mar 13, 2013 at 3:04 PM, Grawburg <grawburg at myglnc.com> wrote:
>>
>>> Anyone see a problem with using a 5V x 2A power supply (from my Lenovo
>>> pad) for the R.P?
>>>
>>>
>>> Brian Grawburg
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>> This message was sent to: john mitchell <john280z at gmail.com>
>>> To unsubscribe, send a blank message to trilug-leave at trilug.org from that
>>> address.
>>> TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
>>> Unsubscribe or edit options on the web  :
>>> http://www.trilug.org/mailman/options/trilug/john280z%40gmail.com
>>> TriLUG FAQ          :
>>> http://www.trilug.org/wiki/Frequently_Asked_Questions
>>>
>> --
>> This message was sent to: Rodney Radford <rradford at mindspring.com>
>> To unsubscribe, send a blank message to trilug-leave at trilug.org from that address.
>> TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
>> Unsubscribe or edit options on the web  : http://www.trilug.org/mailman/options/trilug/rradford%40mindspring.com
>> TriLUG FAQ          : http://www.trilug.org/wiki/Frequently_Asked_Questions