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sa-penguin · (This post was last modified: 12-09-2014 02:04 PM by sa-penguin.)

(12-09-2014 11:13 AM)walter b Wrote: At the bottom line, layouting keyboards is fun (and graphic output makes your readers / viewers sharing it) though the real fun and satisfaction comes with a real platform IMHO. AFAICS, such a platform is missing for a landscape RPN calculator with alphanumeric display.

There are 49-key Bluetooth keyboards. They were inspirational in designing my HTML layout. However, even if you butchered a Bluetooth keyboard for parts, the design problems (opportunities?) quickly start to mount.

For a keypad of that size & layout, where are you are going to put the display? You need a folding "shell" case: a micro-mini laptop. If you put the "brain" CPU under the keypad, is there still room for the battery? Or should that go up top, behind the LCD? Recharging Lithium, or disposables?

I would dearly love a device in this form factor. However, I suspect the more I think about it, the more respect I will have for those designing, and actually implementing, the 43.