AVR-Chat

most LCD displays will do a four bit mode as well as 8 bit, But I think on a four bit mode you loose a
function, not been able to make your own character.

so that gets it down to 7,
D1 to D4, !enable, R/!W, and register select.



----- Original Message -----
From: "Chuck Hackett" <egroupscdh@WhiteTrout.net>
To: <AVR-Chat@yahoogroups.com>
Sent: Sunday, November 28, 2004 3:31 AM
Subject: [AVR-Chat] LCD & Keypad selection



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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