<div dir="ltr">let me start from buttom and crawl up,<div><br></div><div>yes there are internet, a 4G dongle in a router, have to check up on it if its powered when alarm is on, normal everything goes off when last man locks the door, but not total impossible just a matter of moving the router to a always powered plug</div>
<div><br></div><div>about sms... as i understand it the alarm does that so when someone unlocks the house the board members of the club gets an text, not sure of there are spare inputs for heating, but yes a gsm module could be the way to go</div>
<div><br></div><div><br></div><div>about working with OpenTRV.... if i run some strings with one wires sensors why not in this case talk to the valves direct ?</div><div><br></div><div><br></div><div>and then yes, in this house i think heating will be controlled either by relay or and SSR.... simple on off...</div>
<div><br></div><div><br></div><div>oil level.... it can be done by attaching a lenght of tube to the bottom of the tank and route it up tot the top and mount an air pressure sensor on it, any valves etc there allready? </div>
<div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-07-29 11:35 GMT+02:00 Kevin Wood <span dir="ltr"><<a href="mailto:kevin@the-wood-family.com" target="_blank">kevin@the-wood-family.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Bo,<br>
<br>
I'm actually working on something quite similar at the moment for a second<br>
home that needs frost protection / monitoring remotely, in this case with<br>
oil fired heating.<br>
<br>
My plan is a raspberry pi attached to an AVR which controls the heating<br>
system.<br>
<br>
I'm thinking that the AVR can harvest temperature data from a couple of<br>
OneWire sensors, run the heating and hot water schedules and control<br>
relays that activate the heating system as required. It'll also have an<br>
RFM on the board for later integration with OpenTRV and, if I can reverse<br>
engineer it, the wireless oil level sensor on the oil tank.<br>
<br>
R-Pi can host a web interface or, more likely in the first iteration,<br>
provide a mechanism to at least SSH into it and check everything remotely.<br>
Of course it could also do email notifications and SMS would be possible<br>
either via an internet SMS gateway, or just hang a GSM module off it with<br>
a cheap pay as you go SIM installed?<br>
<br>
Does this premises have internet connectivity?<br>
<br>
Kevin<br>
<br>
> I was at local ham club last night at looked at their heating<br>
><br>
> So far i "THINK" its all electrical heating as there is no district<br>
> heating<br>
> installed, makes things a bit more easy since heat not used will go back<br>
> to<br>
> the cylinder :-D<br>
><br>
><br>
> Next bit, there is one big room with 4 rads, which means one box should<br>
> control them all, the box will be central placed. Its mainly old timers so<br>
> the less complicated the better, the rest of the rooms are one rad per<br>
> room.<br>
><br>
><br>
> Mostly @kevin but others might chip in, they have some kind of remote<br>
> control where they can send a text to turn stuff on and they would like to<br>
> be able to turn on the heat remotely, how could we get to that?<br>
><br>
> the point is that when the house is locked heating should turn off<br>
> completely or run at 5degree to prevent frost issues. then either by<br>
> remote<br>
> command or when house is unlocked it should go to warm mode, there would<br>
> be<br>
> no need to sense if its day or night or if people are in the room etc. the<br>
> alarm will output a signal when its on/off<br>
><br>
> any ideas?<br>
><br>
> /bo<br>
><br>
> --<br>
><br>
> |||||<br>
> @(~Ô^Ô~)@<br>
> -------------oOo---U---oOo-------------<br>
> | |<br>
> | Bo Herrmannsen |<br>
> | |<br>
> | |<br>
> | "blessed are the "cracked", |<br>
> | for its they who let in the light" |<br>
> | Ooo |<br>
> |_________________ooO____( )________|<br>
> ( ) ) /<br>
> \ ( (_/<br>
> \_)<br>
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<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><pre><pre><span style="white-space:pre-wrap"> |||||
@(~Ô^Ô~)@
-------------oOo---U---oOo-------------
| |
| Bo Herrmannsen |
| |
| |
| "blessed are the "cracked", |
| for its they who let in the light" |
| Ooo |
|_________________ooO____( )________|
( ) ) /
\ ( (_/
\_)
</span></pre></pre><pre style="white-space:pre-wrap"><br></pre></div>
</div>