[Orcnet] Simple control for one-off experiment

[Terry M. Lang]

Keith,

I have used the
http://www.embeddedarm.com/products/board-detail.php?product=TS-7800

for my Alaska project. It works very well and has all the options that I 
need.

It will also run from batteries and boots very fast.

Terry

Keith Lofstrom wrote:
> Many years ago, I built an experimental setup that would levitate an
> iron bar; linear sensors, opamps, and switching controllers.  I want
> to build something similar, with a digital controller.  I figure I
> need to control 8 linear channels, magnets, perhaps 12V at 2 amps
> per channel, with 8 photosensors and some kHz level real time DSP.
> I have a bunch of audio power amplifier hybrids which I can drive
> from an analog controller board.  I can program from a laptop, but
> I would slightly prefer something that can operate without it.   I
> can do filters and Z transforms and close control loops and hack C. 
> I run Linux, though I can run windoze programs inside a virtual
> machine, not fast.
>
> Question:  What SBC would be good for controlling this 8 channel
> system?  I would gladly trade modest dollars for ease-of-use and
> a large development community that shares information.
>
> Question:  What are people using for off-the-shelf 5V-2A/12V-20A
> power supplies?  I suspect an old PC power supply would not like
> my wildly varying load.  If it does, let me know!  I can drag my
> bench supplies around with me if needs be, but would rather not.
> Efficiency is not an issue, but weight is.
>
> Keith
>
>   

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