April 7th, 2008
Bargraph 101 LED display based on HDSP8820 and AVR AT90S8515
This Bargraph can be modified to run like a knight rider bar, or simply move a light from side to side, its up to you. The project is very simple, few parts involved, even if it contains a micro-controller, its still simple. The source code is written in C and can be compiled using GNU C WINAVR compiler.
Bargraph 101 LED display HDSP8820 and AVR AT90S8515: [Link]
April 8th, 2008 at 10:47 am
[...] This Bargraph can be modified to run like a knight rider bar, or simply move a light from side to side, its up to you. The project is very simple, few parts involved, even if it contains a micro-controller, its still simple. The source code is written in C and can be compiled using GNU C WINAVR compiler. [via] [...]
January 25th, 2011 at 10:57 am
I have no problem figuring out how to drive one of these HDSP-8820 displays; in fact I built a device using one in 1986. But where can you buy one these days? All the big distributors say they are obsolete and out of stock.
Similar parts: SSA-LXB8825 (red) and SSA-LXB8835 (green)