Thermostat code release
June 28th, 2006 Paul Crowley
I’ve released my simple fan control program described in this entry (see also part one).
THIS CODE MAY MELT YOUR CPU - download only if you plan to read it, test it, and/or hack on it. The license makes it clear that it comes with no warranty.
I’ve already received an interesting email from Mark M Hoffman in reply to my post to the mailing list announcing it, drawing my attention to PID control loops. Looks like it could be a worthy avenue of investigation. I’ve replied with a description of one issue I see with applying a PID controller in this domain.
Entry Filed under: Technology, Our Software
2 Comments Add your own
1. Jan Van lent | June 29th, 2006 at 11:29 am
Your approach is also called “bang-bang” or “on-off” control.
www.fourmilab.ch/hackdiet/www/subsection1_2_3_0_5.html
www.netrino.com/Publications/Glossary/PID.html
2. Paul Crowley | June 29th, 2006 at 11:45 am
Thanks - it’s useful to have a name for it.
Hmm, I wonder whether anyone’s tried to apply PID control loops to dieting? I’ve already applied Kalman filters…
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