On a sunny day (Fri, 14 Feb 2020 09:57:28 -0600) it happened Richard Owlett
 wrote in
:

>While searching for other info I was reminded about Raspberry Pi.
>Problem is that https://www.raspberrypi.org/ over does glitz.
>I need a text based matrix of cards vs features.
>[Pointer either to appropriate page of or a U.S. vendor would be fine]
>All relevant specs seem to be available as PDF. Just need to know which
>one I want.
>
>My proposed system would be composed of:
>   Least power hungry board with headers and one USB port installed.
>   One touchscreen display.
>   One battery.
>   One case to hold it all.
>
>Any pointers?
>TIA

Well all raspis and their specs are listed on wikipedia:
 https://en.wikipedia.org/wiki/Raspberry_Pi

Not all are still available,
The old models B I have use very little power...
I have still seen those for sale.

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