LCD display - New graphic display for Basic Stamp
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Posts: 46,084
Hi Guy,
I noticed your posting and wondered if you would help me. I am just
finishing up the development of a graphic lcd controller to be used
with the Basic Stamp. I need advice on which features are most
important because I'm running out of program space on the controller.
Here is a list of the current features followed by some other features
which could be substituted. Also I would be interested in any other
features that you think would be good.
Current Features:
Uses the Optrex Display 128 by 64 pixels with backlight
Less than 55 milliamps with full backlight
8 line by 21 character font
4 line by 16 character font
2 line by 8 character font
1 line by 4 character font
Able to down load a bmp logo file
The x=0, y=0 point is at the bottom left corner of the screen
Line drawing command
Automatically plots a series of points
Single command to create a graphic screen with x and y axis and headings
Stores 10 8 line by 21 character screens and 26 4 line by 16 character
screens which can be displayed with a three byte command.
Two 6 bit a/d converters
One 6 bit d/a converter
Amplifier with software selectable gain
Software control of backlight and screen brightness
Direct input from Basic Stamp at 9600 baud
Selectable delay in response to give Basic Stamp time to switch to
receiving mode
Four switch inputs that store switch closures for future reading and
action by the Basic Stamp
Alternatives:
Change one of the 6 bit a/d converters to 11 bits
Add a bar drawing command for bar graphs
Switch some of the switch inputs to software controlled pulse width
modulated outputs
Question:
The stored screens take up a lot of space. How important are they
compared to having more features?
Any help will be appreciated.
--- In basicstamps@y..., "digital_interior" <guyb@m...> wrote:
> I am looking for a LCD display that has 8 digits and is no smaller
> than 1 inch tall but no larger than 2 inch tall. Can anybody point me
> to a source or manufacture so that I can buy a couple of these for a
> digital counter project?
>
> Thanks,
>
> Guy
I noticed your posting and wondered if you would help me. I am just
finishing up the development of a graphic lcd controller to be used
with the Basic Stamp. I need advice on which features are most
important because I'm running out of program space on the controller.
Here is a list of the current features followed by some other features
which could be substituted. Also I would be interested in any other
features that you think would be good.
Current Features:
Uses the Optrex Display 128 by 64 pixels with backlight
Less than 55 milliamps with full backlight
8 line by 21 character font
4 line by 16 character font
2 line by 8 character font
1 line by 4 character font
Able to down load a bmp logo file
The x=0, y=0 point is at the bottom left corner of the screen
Line drawing command
Automatically plots a series of points
Single command to create a graphic screen with x and y axis and headings
Stores 10 8 line by 21 character screens and 26 4 line by 16 character
screens which can be displayed with a three byte command.
Two 6 bit a/d converters
One 6 bit d/a converter
Amplifier with software selectable gain
Software control of backlight and screen brightness
Direct input from Basic Stamp at 9600 baud
Selectable delay in response to give Basic Stamp time to switch to
receiving mode
Four switch inputs that store switch closures for future reading and
action by the Basic Stamp
Alternatives:
Change one of the 6 bit a/d converters to 11 bits
Add a bar drawing command for bar graphs
Switch some of the switch inputs to software controlled pulse width
modulated outputs
Question:
The stored screens take up a lot of space. How important are they
compared to having more features?
Any help will be appreciated.
--- In basicstamps@y..., "digital_interior" <guyb@m...> wrote:
> I am looking for a LCD display that has 8 digits and is no smaller
> than 1 inch tall but no larger than 2 inch tall. Can anybody point me
> to a source or manufacture so that I can buy a couple of these for a
> digital counter project?
>
> Thanks,
>
> Guy
Comments
trying to squeeze every bit of memory out of the Stamps program, if the LCD
controller already stores some of the messages then you wouldn't have to
waste as much space on the stamp. As for other features, hmm... your list
is already fairly extensive, but maybe your alternative idea of switching
some of the inputs to software controlled PWMs would be good. Hope this
helps a little. ;-)
Chris Shuster
http://cpuman.cjb.net/
[url=irc://irc.serenia.net/tech]irc://irc.serenia.net/tech[/url]
Original Message
From: "bgodrik" <dbg@i...>
To: <basicstamps@yahoogroups.com>
Sent: Wednesday, September 25, 2002 3:28 AM
Subject: [noparse][[/noparse]basicstamps] Re: LCD display - New graphic display for Basic Stamp
> Hi Guy,
> I noticed your posting and wondered if you would help me. I am just
> finishing up the development of a graphic lcd controller to be used
> with the Basic Stamp. I need advice on which features are most
> important because I'm running out of program space on the controller.
> Here is a list of the current features followed by some other features
> which could be substituted. Also I would be interested in any other
> features that you think would be good.
> Current Features:
> Uses the Optrex Display 128 by 64 pixels with backlight
> Less than 55 milliamps with full backlight
> 8 line by 21 character font
> 4 line by 16 character font
> 2 line by 8 character font
> 1 line by 4 character font
> Able to down load a bmp logo file
> The x=0, y=0 point is at the bottom left corner of the screen
> Line drawing command
> Automatically plots a series of points
> Single command to create a graphic screen with x and y axis and headings
> Stores 10 8 line by 21 character screens and 26 4 line by 16 character
> screens which can be displayed with a three byte command.
> Two 6 bit a/d converters
> One 6 bit d/a converter
> Amplifier with software selectable gain
> Software control of backlight and screen brightness
> Direct input from Basic Stamp at 9600 baud
> Selectable delay in response to give Basic Stamp time to switch to
> receiving mode
> Four switch inputs that store switch closures for future reading and
> action by the Basic Stamp
>
> Alternatives:
> Change one of the 6 bit a/d converters to 11 bits
> Add a bar drawing command for bar graphs
> Switch some of the switch inputs to software controlled pulse width
> modulated outputs
>
> Question:
> The stored screens take up a lot of space. How important are they
> compared to having more features?
>
> Any help will be appreciated.
> --- In basicstamps@y..., "digital_interior" <guyb@m...> wrote:
> > I am looking for a LCD display that has 8 digits and is no smaller
> > than 1 inch tall but no larger than 2 inch tall. Can anybody point me
> > to a source or manufacture so that I can buy a couple of these for a
> > digital counter project?
> >
> > Thanks,
> >
> > Guy
>
>
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