[clug] Home automation interest

[Paul Wilson]

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/>
>>>     ==========================
>>>
>>>
>>>
>>>     --
>>>     linux mailing list
>>>     linux at lists.samba.org <mailto:linux at lists.samba.org>
>>>     https://lists.samba.org/mailman/listinfo/linux
>>>
>>>
>>>
>>
>>
>