Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

Re: [AVR-Chat] Re: variable/constant input from a PC ?

2004-07-15 by Robert Adsett

At 06:51 PM 7/15/04 +0000, you wrote:
>I think there could be two seperate data loops. one continuous and
>one calculated.  Even with the time stamp, the calculated same would
>only change about 50 times a day at maximum so the total samples will
>be small.

You are going to need software filtering even on your fastest sampling on 
the light (maybe not on your other measurements), otherwise aliasing is 
very likely to be an issue.  I expect humidity and temperature change 
slowly enough that aliasing is not likely to be an issue if you are careful 
about your minimum sampling frequency.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.