Depending on how your configure your LEDs, one advantage of multiplexing
could be a power saving as only one LED's on at a time; perhaps useful
if your gizmo is going to be battery powered.


-----Original Message-----
From: ivp [mailto:joecolquitt@clear.net.nz]=20
Sent: 21 October 2010 09:08
To: Joe P. Farr
Subject: Re: [PIC] Convert number to bit position

> Please tell us the end application. It looks like a fun project but I=20
> can't imagine what it's for and got curious while reading your post.

Well, it's kind of an in-house short-range paging system. Not much 'fun'
if it works properly, but could be if it doesn't ;-)

Tell you what though. The first instinct I had when asked to put many
LEDs on a PIC was multiplexing. But the new ranges of PICs with a good
I/O count are so cheap it's hardly worth the logistical bother (in this
instance anyway)

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