[clug] Home automation interest

[Andrew Loughhead]

Hi Paul if you haven't seen it yet you might like to check out
www.openenergymonitor.org for a software framework to log and display this
kind of data. Also they have some well established hardware for sensor
nodes that can include one-wire temperature probes and similar. It's quite
possible to roll your own arduino based sensor nodes too which can reduce
the cost.
On 12 Nov 2015 6:39 am, "Paul Wilson" <mylists at wilsononline.id.au> wrote:

> Looks like just the thing I'm looking for,  the details I'm wanting is
> details of the sensor connection with the hot water tank.
> Where do you place sensor to get most accurate temperature reading?
> My model is a 300j.
> Thanks for the info.
> Paul
> On 11/11/2015 10:21 PM, "Neil Pickford" <neilp at goldweb.com.au> wrote:
>
> > Hi Paul
> > I am monitoring a Solahart system (have been for about 6 years) using
> > Linux, One wire sensors, OWFS, Cron, RRDtool & Shell Scripts.  The One
> wire
> > interface into Linux machine is via a standard RS232 serial port from a
> > Onewire converter or master hub.
> >
> > See <http://happy.emu.id.au:8430/>
> >
> > I am using Dallas One Wire DS18B20 temperature sensors,
> > One wire counters (wind & rain [future water/gas]), and
> > a One Wire A/D converter card (wind direction).  The A/D board has inputs
> > & outputs on it too that could control your contractor.
> >
> > Most of the One wire infrastructure (Master Hub, Counters, A/D converter,
> > Relay board) is available from Hobby Boards. <
> http://www.hobby-boards.com/
> > >
> >
> > My system is just monitoring and pretty agricultural in the shells
> > scripting, However if you can figure out how to process numbers in shell
> or
> > another language you could easily program some automation of the Bypass
> > relay.
> >
> > Happy to share scripting and system setup info.
> >
> > The location to place your key temperature sensors is:
> > a) on the anode of the Solahart tank. (Mid tank temp)
> > <http://happy.emu.id.au:8430/temps/Last_Week_tankanode.png>
> > b) on the hot water pipe feeding your house (mine is at the inlet to the
> > solar tempering valve).
> > This gives a good indication when hot water is being used.  See spikey
> > brown curve.
> > <http://happy.emu.id.au:8430/temps/Last_24_Hours_roofspacehw.png>
> >
> > Or you can look at all the temperatures together :)
> > <http://happy.emu.id.au:8430/temps/Last_2_Days_temps.png>
> >
> > There is a thread on CLUG about this in Feb/March 2010 " [clug] Linux
> > compatible external Thermometer via OWFS"
> >
> > Cheers Neil VK1NP.
> >
> >
> > On 11/11/2015 5:56 PM, Paul wrote:
> >
> >>
> >> I've done a bit of research but just an update on my Home automation
> >> project.
> >>
> >> I spoke to SolarHart about my booster switch and looks feasible.
> >> I need to get a relay (contactor) installed on the booster circuit and
> >> then I can put a automation switch to control that.
> >> So now just need to check out Linux Home automation s/w thats compatible
> >> with the modules and scripting I want to use..
> >>
> >> Paul
> >>
> >> On 05-Nov-15 1:13 PM, Paul Wilson wrote:
> >>
> >>> John,
> >>>   I don't have a Off-Peak meter, but would be an interesting excercise
> >>> to figure out if
> >>> its better to leave booster on vs switching on 1-2 hours prior.
> >>> Also I would like a bit more remote control than a basic timer, ie for
> >>> Winter I probably
> >>> would need to adjust it vs' summer.
> >>>
> >>> Ideally I would like to monitor my tanks temp but I don't know how to
> do
> >>> this .
> >>>
> >>> Paul
> >>>
> >>> On Thu, Nov 5, 2015 at 10:17 AM, Bryan Kilgallin <
> bryan at netspeed.com.au
> >>> <mailto:bryan at netspeed.com.au>> wrote:
> >>>
> >>>     Paul:
> >>>
> >>>         The project I'm wanting to get started on.. Is to automate my
> >>> solar hot
> >>>         water booster. I currently have to manually switch this on if
> we
> >>> get a
> >>>         couple of days of cloudy days.
> >>>
> >>>
> >>>     I look at weather forecast. For example Zehr-enhanced infrared
> >>> satellite view. I think
> >>>     that will be more useful.
> >>>
> >>>     --
> >>>     www.netspeed.com.au/bryan/ <http://www.netspeed.com.au/bryan/>
> >>>     ==========================
> >>>
> >>>
> >>>
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> >>>
> >>>
> >>
> >>
> >
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