Re: [mh] Help needed on Heating system

[Brian P. <br...@th...>]

I have something like this, but it's still a script, much like  
hvac_david.pl

I'm about to start converting it to a set of modules and hope to be  
done in a few days.

Brian

On Oct 4, 2006, at 5:15 PM, ph...@zo... wrote:

> Hi everyone,
>
> To start off with. I mostly use pieces of other peoples code and copy,
> paste it into my Misterhouse. That works most of the time to switch
> lights and stuff but writing my own code is way over my head.
>
> I need help with coding the following situation:
>
> I have a couple of iButton DS1820 temp probes. I want to install them
> allover my house and use digitemp to log to a MySQL database. Can be
> done with http://illx.org:8080/digitemp/index.jsp
>
> On eBay a bought a couple of motor drives for my radiators around the
> house. A couple of them are 220v normally closed. (no power no
> waterflow) And a couple of 24v units. They can be steered, so not only
> on or off.
>
> I want to make a zoned heating system. Using the 24v motors in the
> living areas and the 220v types in the not so important rooms.
>
> Ideally it would also be a bit intelligent. Turning of the radiator a
> bit before the wanted heating level is reached. (Self learning per
> zone?)
>
> What I need is code for Misterhouse that reads the iButton code from
> the MySQL server. Calculates the overall house temp. Accepts input from
> all zones for temperature wanted. Switches on the Heating system if
> heat is needing via a relay. Switches the motors to the zones
> accordingly. Maybe even with some sort of priority. For instance; In
> the morning I want my bedroom and bathroom warm very fast. Livingroom
> heating is a lower priority.
> It would be great if it could tie in to Misterhouse's state items.
> State sleeping shuts down the heating for instance.
>
> FYI: I have a central heating system in the attic that normally uses a
> thermostat in the livingroom.
>
> I have a Velleman K8000 interface that I would like to use for this
> project. Switching the 220v motors with X10 is not an option, because
> that would be way to expensive here in Europe. I want to use the K8000
> an a couple of relays.
>
> I looked at hvac_david.pl in /code/public/ In fact, most of the things
> I want are already in there. Only it's not zoned. And I don't really
> understand what most of the code does. (I'm an idiot i know)
>
> Is there someone that would like to help me with this one? Best would
> be to make some sort of zoned HVAC module that can be easilly adapted
> to other hardware (Temp probes, relay boards an stuff like that) That
> way other people can just copy, paste the code and fill in their
> hardware. If you don't wan't to use the zoned option, just use one  
> zone.
>
>
> Hope you can help.
>
> Thanks,
>
> Timo
>
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