I got mine from CPC Farnell for £35 including transparent case (which is
awesome) and delivery.
A few points:
- only booted once on desktop, then used ssh and vnc only
- used a cheap class 10 SDCard from a photo camera
- Raspbian is very easy to use and update, just like a normal Debian but
it only sees 256MB out of the box; to see the whole 512 RAM you need to
download the new /boot files from git
- use any smartphone charger (750mA+) - gets stuck in bios if plugged in a
USB port such as router or laptop
- not great as media player, server, router or desktop system; probably
more suitable for DIY projects such as web cat feeder and home security
On Tue, Feb 5, 2013 at 12:01 PM, Chris. Aubrey-Smith <cas194@???>wrote:
>
>
> On 5 February 2013 11:22, Benjie Gillam <benjie@???> wrote:
>
>> A loaded Raspberry Pi model B sucks down about 700-750mA, or more if
>> you've hooked up particularly current-hungry USB devices to it. The USB
>> specification states that USB devices should demand no more than 500mA, and
>> many computer sockets/hubs will automatically disconnect devices that suck
>> down more power than this - especially if the device doesn't do proper USB
>> power negotiation. Some cheaper USB hubs (and some more expensive ones too)
>> don't have per-socket regulation so you can suck the full 2A (or whatever
>> they provide) out of just one, but I would not recommend it as a long term
>> solution - the Pi is notoriously unstable when it's not connected to a
>> decent power supply. Many computers provide more than 500mA per socket, but
>> this cannot be relied upon.
>>
>> Some USB hubs deliberately have a high current port - these are normally
>> highlighted for charging iPads and the like. Otherwise standard
>> tablet/phone chargers that plug into the wall work quite well - I'd advise
>> checking that these provide at least 800mA before using it. I'm using a
>> 2.1A Nexus 7 charger for my RPi and it works wonderfully.
>>
>> Hope this helps,
>>
>> Benjie
>>
>
> Most of my efforts so far have involved the dedicated power supply and an
> unpowered hub, but I have experimented with a single powered hub in various
> configurations and have had no problems.
>
> It goes without saying that I monitor the current being drawn most
> carefully!
>
> Chris.
>
>
>>
>> Please post to: Hampshire@???
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>>> LUG URL: http://www.hantslug.org.uk
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>>
>>
> --
> Please post to: Hampshire@???
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