[Trilug-ontopic] need to program a series of LED lights

Craig Taylor ctalkobt at gmail.com
Thu Dec 11 11:19:54 EST 2008

Nuts & Volts had a recent project on this in either the last issue or the
issue before last - they used a microcontroller and to me, it looked overly

If you've got the Linux box - do you need to add the microcontroller? You
may be able to do it all via a little program driving the parallel port with
some decoders to drive multiple sequences.

In addition, one key factor will be how many leds you wish to drive and how
many different "chains" of them you wish to control independantly.

And no, I've never done anything like this - just speculation on my part.

- Craig Taylor

On Thu, Dec 11, 2008 at 11:14 AM, Greg Brown <gwbrown1 at gmail.com> wrote:

> Using an embedded Linux box I'd like program a string of tri-state LED
> lights.  I'd like to synchronize the lights to music (this is for a
> miniature town a friend is building for God only knows why).
> I have *NO IDEA* how to go forward with this and I further have no idea how
> the embedded computer would interface with the lights to turn them
> on/off/colors.
> Has anybody done anything like this?  What did you do and how did you do
> it?  Did you look the LEDs up to a serial port and set pin voltages?  What
> language did you use?  C?  Java?
> Any pointers would be greatly appreaciated.
> Greg
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