On Sun, 28 Oct 2012 22:10:53 -0700, D wrote:

I built an LED VU meter years ago. Like 5 green LED's, followed by 2
yellow LED's, followed by 3 red LED's, with them lighting sequentially
with volume level, green to red, fluctuating with the level.
Theoretically, one of these could be any size you want. I'm sure if you
do some searching on LED VU meters, you'll find something.

That would be an LM3916 IC:
http://www.ti.com/lit/ds/symlink/lm3916.pdf
https://www.google.com/search?q=lm3916+vu+meter&tbm=isch
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558