AVR-Chat

Chuck,

    They are not cheap, but check out matrixorbital. They have a wide 
assortment of text/graphic serial controlled LCD/VFD screens with many 
including a keypad connection (row/column). It would use two lines (one 
uart) on a atmel. You TX to the LCD to control what it displays and RX 
the keyup/keydown sequences. They have a fairly rich command set 
including turn backlight on/off, some can adjust brightness, general 
purpose output (for peizo), etc.

Check them out at:

http://www.matrixorbital.com

-James

Chuck Hackett wrote:

> I'm looking for an LCD and keypad to use on some personal projects.
>
> I'd like them to have a simple, low pin count, interface (probably 
> serial?).
>
> As a minimum, the LCD should have at least two lines ~20 char.  Ones 
> with larger
> character capacities and/or graphics would also be applicable.
>
> As to keypad, I'm thinking of something with numeric pad plus some 
> other (A, B,
> C, D) keys (4x4?).  One with replaceable keycaps would be nice.
>
> I've scanned the Digi-Key catalog but I come away confused as most 
> appear to
> need a separate controller to complete the package.
>
> Cheers,
>
> Chuck Hackett
> "Good judgment comes from experience, experience comes from bad judgment"
> 7.5" gauge Union Pacific Northern (4-8-4) 844
> http://www.whitetrout.net/Chuck
>
>
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