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Generic Calculator Shield for Arduino Photo-journal
03-17-2015, 02:59 AM (This post was last modified: 03-17-2015 04:49 AM by MarkHaysHarris777.)
Post: #33
RE: Generic Calculator Shield for Arduino Photo-journal
(03-17-2015 02:39 AM)BarryMead Wrote:  Mark: What did you have in mind for "KEY" labels?

... thought I would keep that a secret for a while longer. ;-)

Initially, they are going to be very high tech... index card cut-outs printed on the laser printer. There will be an overlay similar to Eric's vinyl overlay, only my initial pass will be paper... and the keys will be tabs glued at the front, which come up and over the key to the rear (printed on the laser printer). That will be a bunch of paper doll work too, but quick and cheap/

Eventually, the buttons are going to be 3D micro printed plastic, rotate-and-click, similar to classic HP keyboards. Picture a plastic frame of rotating buttons that drops down on the pbc platform.

PS The 16x2 LCD display is actually an internal register of 80 characters (full alpha-numeric). The cursor may be placed anywhere within the register to begin the 'write'. Typically the 80 column register is thought of as two (two lines) 40 character alpha-numeric registers. The display may be 'scrolled' left and right; has serious possibilities.

PPS What if your calculator drove a 2D motorized programmable plotting table (X Y axis, pen-up|down)? This one is going to...


Kind regards,
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RE: Generic Calculator Shield for Arduino Photo-journal - MarkHaysHarris777 - 03-17-2015 02:59 AM

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