Help on running a LCD

Archiver

hey,
i have a 2x16 LCD screen and a BS2, i have tried to get them to talk
but it appears that they arn't. I'm pretty sure its my code that is
not working, and i don't really understand the initialization
sequence stated in the manuel.
(http://www.jameco.com/Jameco/Products/ProdDS/171715.pdf) Or it might
be the pin connections. Any help would be greatly appreciated.

thanx

-mike

Archiver

This page contains my own notes on getting a HD44780 based LCD to work on a
BS2:

http://www.lennard.net.nz/electronics/lcd.html

Assuming your LCD is a Parallel LCD?



> From: "laxboy687 <laxboy687@e...>" <laxboy687@e...>
> Reply-To: basicstamps@yahoogroups.com
> Date: Mon, 10 Feb 2003 22:33:20 -0000
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Help on running a LCD
>
> hey,
> i have a 2x16 LCD screen and a BS2, i have tried to get them to talk
> but it appears that they arn't. I'm pretty sure its my code that is
> not working, and i don't really understand the initialization
> sequence stated in the manuel.
> (http://www.jameco.com/Jameco/Products/ProdDS/171715.pdf) Or it might
> be the pin connections. Any help would be greatly appreciated.
>
> thanx
>
> -mike
>
>
> To UNSUBSCRIBE, just send mail to:
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>
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>
>
>

Archiver

Yup, LCD's can be a real bear until you get it all figured out. Don't get
discouraged, just keep trying.

According to the documentation, it looks like it is a parallel display with
a standard contrast adjustment. Not sure about the compatibility with the
Hitachi chip set though. Page 10 of the referenced Jameco document explains
the contrast bias circuit. Nuts & Volts column #31 on the Parallax web site
explains how to use an character-based LCD with a BS2.

http://www.parallax.com/Downloads/Documentation/nv/v1/col/NV31-Demystifying_
Character-based%20LCD's.pdf

---

Original Message

---

> This page contains my own notes on getting a HD44780 based LCD to work on
a
> BS2:
>
> http://www.lennard.net.nz/electronics/lcd.html
>
> Assuming your LCD is a Parallel LCD?

> > i have a 2x16 LCD screen and a BS2, i have tried to get them to talk
> > but it appears that they arn't. I'm pretty sure its my code that is
> > not working, and i don't really understand the initialization
> > sequence stated in the manuel.
> > (http://www.jameco.com/Jameco/Products/ProdDS/171715.pdf) Or it might
> > be the pin connections. Any help would be greatly appreciated.

Archiver

hey yall thankx for the info, hopefully this will work
-mike





--- In basicstamps@yahoogroups.com, Ben <ben.lennard@p...> wrote:
> This page contains my own notes on getting a HD44780 based LCD to
work on a
> BS2:
>
> http://www.lennard.net.nz/electronics/lcd.html
>
> Assuming your LCD is a Parallel LCD?
>
>
>
> > From: "laxboy687 <laxboy687@e...>" <laxboy687@e...>
> > Reply-To: basicstamps@yahoogroups.com
> > Date: Mon, 10 Feb 2003 22:33:20 -0000
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] Help on running a LCD
> >
> > hey,
> > i have a 2x16 LCD screen and a BS2, i have tried to get them to
talk
> > but it appears that they arn't. I'm pretty sure its my code that
is
> > not working, and i don't really understand the initialization
> > sequence stated in the manuel.
> > (http://www.jameco.com/Jameco/Products/ProdDS/171715.pdf) Or it
might
> > be the pin connections. Any help would be greatly appreciated.
> >
> > thanx
> >
> > -mike
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
Subject and Body
> > of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >