Parallax LCD displays with Keyboard Interface

Archiver

regarding the
subject[noparse]:([/noparse]http://www.parallax.com/html_pages/products/audiovisual/audio_visual.as\
p)

what type of keyboard interface are on these units?
What is a "25 key keyboard"? Anyone using these yet?
pics? docs? thanks . . .

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Archiver

If you are talking about the new Matrix Orbital LCDs then I'll help
you out [noparse]:)[/noparse]

The LCDs have keypad capability. There are 10 pins on the back of the
display, 5 for Rows and 5 for Columns. When a row and a column are
shorted out together, the LCD detects this and see a keypress. Then
the LCD will either store the key or fire the key out the serial port
back to your host (It depends on which setting you are using). This
allows you to create a menu system, or control other aspects of the
Basic Stamp, like turning on and off pins, or accessories.

An image of our display controlling a garden watering system using a
keypad
http://www.matrixorbital.com/forum_imgs/Gallery/Pond/backwash.jpg

more pictures here,
http://www.lcdforums.com/forums/viewtopic.php?t=655

--- In basicstamps@yahoogroups.com, John Remington <jrem123@y...>
wrote:
> regarding the
> subject:
(http://www.parallax.com/html_pages/products/audiovisual/audio_visual.
asp)
>
> what type of keyboard interface are on these units?
> What is a "25 key keyboard"? Anyone using these yet?
> pics? docs? thanks . . .
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Tax Center - File online, calculators, forms, and more
> http://tax.yahoo.com