Large serial LED displays
Archiver
Posts: 46,084
I am looking to interface the StampII to a large LED display, but not
sure how that works. I have no problem doing this with small serial
LCD units, but I have the following questions about LED's:
1- where can I find such large displays (2" to 3" of charachter
height)? Digi-key has large 7-segment displays but only one letter at
a time.
2- does anyone know of a serial multi-charachter large display that
have serial capability?
3- if I have to communicate with individual characters, what is the
power requirements for these displays and what is the best way of
providing the required current?
4- since I need to have about 20 characters, can the stamp keep up in
maintaining a decent refresh rate?
I would appreciate any suggestions or leads......
thanks,
Al
sure how that works. I have no problem doing this with small serial
LCD units, but I have the following questions about LED's:
1- where can I find such large displays (2" to 3" of charachter
height)? Digi-key has large 7-segment displays but only one letter at
a time.
2- does anyone know of a serial multi-charachter large display that
have serial capability?
3- if I have to communicate with individual characters, what is the
power requirements for these displays and what is the best way of
providing the required current?
4- since I need to have about 20 characters, can the stamp keep up in
maintaining a decent refresh rate?
I would appreciate any suggestions or leads......
thanks,
Al
Comments
alnajjar@s... writes:
<< I am looking to interface the StampII to a large LED display, but not
sure how that works. I have no problem doing this with small serial
LCD units, but I have the following questions about LED's:
1- where can I find such large displays (2" to 3" of charachter
height)? Digi-key has large 7-segment displays but only one letter at
a time.
2- does anyone know of a serial multi-charachter large display that
have serial capability?
3- if I have to communicate with individual characters, what is the
power requirements for these displays and what is the best way of
providing the required current?
4- since I need to have about 20 characters, can the stamp keep up in
maintaining a decent refresh rate?
I would appreciate any suggestions or leads......
thanks,
Al
>>
Check out the following site:
http://www.vorne.com/
A bit pricey for hobby projects. Depends on the application.
Max
pricey) is to purchase a BetaBrite moving LED sign made by Adaptive Micro
Systems. I found them at Sam's Club for about $150 a year ago. They have
2" high characters and can display about 16 characters (depends on font) at
a time. The characters can scroll left,right,up,down and can be displayed
in 16 colors. There are a lot of different fonts and one can even do
graphics on them. I use mine to display time synched to a GPS clock.
Communications to the sign is RS232 using serial commands to change colors,
scrolling, ets. Simple serial communications coupled with a large,
colorful, capable display makes display projects fun. The sign's
communication protocol can be downloaded at
http://www.ams-i.com/Pages/97088061.htm
I'm not connected with Adaptive in any way, just a satisfied user of a
couple of their BetaBright signs.......
Original Message
From: <MaxToole@a...>
To: <basicstamps@egroups.com>
Sent: Saturday, December 09, 2000 12:02 PM
Subject: Re: [noparse][[/noparse]basicstamps] Large serial LED displays
> In a message dated 12/8/00 10:50:31 PM Eastern Standard Time,
> alnajjar@s... writes:
>
> << I am looking to interface the StampII to a large LED display, but not