🚀 go-pugleaf

I would like to build an LED indicator display similar to the ones found
on stero systems (flashing lights to measure power output).  The panel I
plan to build would have several banks of LEDs for several different
frequencies.

        ........  100 Hz
        ........    1 kHz
        ........   10 kHz

        (maybe a few more banks).

My question is this: how do I get only one LED to light up when there is
minimal power, and then two when there is some more, and then three when...

This seems SOOOOO trivial but I can't figure it out.  Maybe I should sleep
on it some more.  Anyhow, I plan to use a condenser mic for input so I
don't have to "steal" power from my speakers.  Is this necessary in your
opinions.  The condenser has the advantage of making the device usable
for other things, though.

Also, if anyone has some neat ideas for fancy flashing light displays
(or something of the like) I would be interested in hearing about them.

        --Paul




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|  Paul Nadj:  UBC Electrical Engineering                  ------  Morbid     |
|            Starving Student                              O    |  games we   |
|  pnadj@ee.ubc.ca -- write me: I'm bored                 /|\   |  teach our  |
|                                                         / \   |  kids.      |
|  "If it wasn't for bad luck I'd have no                       |  Hmmm...    |
|  luck at all"              --Nikki Sixx                   ---------         |
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