[57north-discuss] Parallella

[Tony Travis]

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On 19/06/14 09:39, Dave Hibberd wrote:
> Those standoffs look like a really neat solution for distribution.
> For the actual powering of the hardware, if you're feeling really 
> hackerspace-adventurous you could build one, because that's always
> fun - 5VDC/4x2A+25% headroom isn't too bad.

Hi, Dave.

My only concern about stacking them like that is the board-board
interconnects through the sockets on the underside of the board.

The reason the cables were not supplied with my kit is that the strain
on the sockets when the boards are stacked risks damaging the boards.
Adapteva say they are looking for more flexible alternative cables:

  https://twitter.com/adapteva/status/471220992178520064

> Other options include a 4 gang US socket fed from a single
> 240-120V transformer, or, as you say, 5V/10A (Accounting for fan
> current + future PSU fatigue & assuming no future expansion) switch
> mode PSUs can be found pretty cheap online. :)

Yes, I've been looking at my options but I might just use the 5V rail
from an EPS12V PSU for now.

> Failing that, I can offer you the work of some of our desert 
> technicians, who always manage to come up with a terrifyingly
> creative solution to any issue we're having:
> http://imgur.com/kt9idNA

Reassuring to see that they got the wires in the right way round ;-)

Bye,

  Tony.

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