My first questions are -
        How many segments (shape?)
        Size of each segment length x width

You may do better with lasers scanning prismatic targets to scatter the
light

Thinking...
MC

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave King
Sent: Friday, 28 December 2001 09:20
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: big led display (kind of)


This isn't quite the same problem but the title still fits. I'm working on
a real big LED
display that's on the order of 2 miles long. Think of it as the worlds
longest Christmas
tree light string. When my mouth opened it yap and said "oh yah I can do
that" my
brain wasn't paying too much attention. Now I need to find a way to power
this "thing"
so it works without making the smoke come out of something. Right now I'm
thinking
along the lines of using a Pic controlled switching power supply to
generate pwm and
slowly ramping things up. I'm sure I need to have several feed points but
I'd like to be
sure.

Anyway I was wondering if anyone has run across any good information on
working with
something this sized. I've got a few ideas on it but I'd like to be a bit
more sure before I
start.

Cheers

Dave


The only thing that helps me maintain my slender grip on reality is the
friendship I share
with my collection of singing potatoes

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