[ubuntu-uk] USB 5V DC power: power off?

Mark White markwhite at mdpuk.com
Tue Dec 6 10:42:25 UTC 2011

Try this


Buy in the uk


Plenty of suppliers in the uk .


On 6 Dec 2011, at 04:44, Matthew Wild wrote:

> On 5 December 2011 22:24, Andres <andresmp at gmail.com> wrote:
>>>> Would this be where to start or am I taking it the wrong way and
>>>> over complicating?
>> Robert wrote:
>>> How is it that you want to control the light? If it doesn't have to be
>>> in response to some event on the computer I'd recommend getting a
>>> physical switch.
>> It does have a physical switch my intention was to use the light as event
>> driven as you suggest: fliker with new email, finished compile, scan,...
>> I see i am better off getting arduino for that. Thanks.
> Or use your parallel port. Oh, wait, it's 2011 now. Never mind :(
> USB is not the easiest beast to tame the way you are hoping to. The 5v
> line is typically always on, though additional power can be requested
> by the device.
> An Arduino is a good idea if you don't mind learning to write code.
> There is also the k8055 board which can connect to your computer via
> USB and has a number of inputs and outputs that you can use without
> much risk of frying your laptop's USB controller:
> http://www.maplin.co.uk/usb-experiment-interface-board-42857
> Here is one of the first things I did with mine:
> http://matthewstechnologyblog.blogspot.com/2008/06/im-barking.html
> Regards,
> Matthew
> -- 
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.ubuntu.com/UKTeam/

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