Re: Powering a Raspberry Pi, Model B

Sep 25, 2013 2 Replies

Copying comp.sys.raspberry-pi.



>> The Raspberry Pi is powered via a Micro USB plug/socket. Many in-line
>> 5V power supplies or those integrated into a 13A plug end in a
>> standard 2.5mm power plug. A cable that converts from a 2.5mm power
>> plug to micro USB would be required - are cables made to do this?
>
> We couldn't find any so we now mnufacture some including one with an
> ON/OFF
> switch.
>
> 2.1mm DC socket to microUSB plug
>
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>
> 2.1mm DC socket to microUSB plug with switch
>
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>
> Not the most common way of powering a Pi but very useful if you want to
> power other items like a small LCD at 5V as you can then use a Splitter
> cable and run everying off of one PSU
>
> Or if using Spare wires or Proper Power Over Ethernet:
> Power over Ethernet Splitter with 2.1mm jack plug to microUSB cable
>
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>
> POE (Spare wires) Injector and Splitter adaptors with microUSB cable
>
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>
>> The
>> micro USB plug is extremely tiny and although the R-Pi takes little
>> power it surely must be near its current limit.
>
> IIRC the spec is 1.4Amps as the on board fuse is 1AMP you have spare
> headroom.
>
>> Alternatively the board can be powered via a powered USB hub. Is this
>> what most users do?
>
> Some HUBS follow the USB spec and limit USB power out to 0.5A
>
> we have just a few PSU & power cable options!
>  Raspberry Pi: PSUs and Power Cables
>
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>
> Power over ethernet is under networking:
>
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Apparently those last two links should have been


 Raspberry Pi: PSUs and Power Cables

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Power over ethernet is under networking:

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Thanks for looking and taking the time to reply

Did the two above not work for you?

The first one should auto redirect to:

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And the second to:

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They work for me. If they don't for you then please let me know which browser you are using.

May be it'd be best to reply via email.

Chris Evans

CJE Micro's / 4D 'RISC OS Specialists' Telephone: 01903 523222 Fax: 01903 523679 chris@cjemicros.co.uk http://www.cjemicros.co.uk/ 78 Brighton Road, Worthing, West Sussex, BN11 2EN The most beautiful thing anyone can wear, is a smile!

It doesn't matter. The comment was just due to seeing the following.

James

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