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Re: [ProgSoc] Temperature of the Progsoc Room
> The web page graphs containing the temperature of the progsoc room
> could do with some signal processing. Since the temperature is sampled
> every minute but only to an accuracy of one degree C, it would be better
> to sacrifice some time resolution for some temperature resolution and
> use a moving window average of somewhere round 15 minutes.
I have been meaning to do this (a few people have been hassling me over
I have just added in some averaging. Now to wait for the results...
> After all, I don't feel that it's likely that the real room temperature
> flickers up and down by exactly one degree from minute to minute --
> do you?
The method of analog to digital conversion used by Tim is interesting.
Since there is no ADC on the micro, it measures the discharge time of a
capacitor, timing until the voltage is the same as the analog voltage.
It then has a lookup table to convert the time into a voltage.
btw there is an RPC client as well - try out rtemp on a progsoc machine.
Anton Blanchard email@example.com
Computer Systems Engineering Student firstname.lastname@example.org
University of Technology http://www.progsoc.uts.edu.au/~anton/
Look, Rimmer, death isn't the handicap it used to be.
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