[OpenTRV-dev] Fwd: New Member - Introduction

[Mark Hill]

Hi Rob

Fundamentally there are 3 variants at the moment or in the near future:

1) REV2 + FHT8V (whether branded or in kit form, they are all the same)
2) REV7 Frankenvalve as you've described. We're expecting enough REV7s any
day now to be able to send some out to interested parties to hack with.
3) The REV7 + OpenTRV plastics and motor which we're aiming for being
available winter 2015-6 - but at a price. Option 2 will be cheaper (but
uglier) for winter 2015-6. This one is really aimed at the trials we've got
lined up in social/sheltered housing for this winter coming. Some people
may find that, in the living room at least, that this one gets better
acceptance than option 2.

Once we've got some REV7 boards in our hands, we'll announce it on the
lists/website/twitter feed.

Regards, Mark

---------- Forwarded message ----------
From: Damon Hart-Davis <dhd at exnet.com>
Date: 19 May 2015 at 19:32
Subject: Re: [OpenTRV-dev] New Member - Introduction
To: Closed list for developer discussions <opentrv-dev at lists.opentrv.org.uk>
Cc: Damon Hart-Davis <dhd at exnet.com>



> I beleive that there are fundamentally 2 systems:

Three.  Amongst our weapons…  %-P

>
> (1) Rev2 board that is a wireless controller for the ELV FHT8V valve (
http://www.elv.de/elv-fht8v-funk-stellantrieb-mit-adapterset.html) and also
uses wireless to another Rev2 board used as the boiler controller.
>

Yes.

> (2) Rev7 board that will sit inside an (modified) eQ-3 valve (as supplied
by Conrad:
http://www.conrad-electronic.co.uk/ce/en/product/1168832/Thermostat-head-5-up-to-295-C-eQ-3/?ref=detview1&rt=detview1&rb=1)
- as referenced from here:
http://opentrv.org.uk/blog/target-date-january-2015/   .  The wireless is
only used to communicate back to the boiler controller.

That’s the “Frankenvalve”!

> From what I (mis?)understand I'm think I'm more interested in the Rev7
system, even if that means waiting for a bit, and would be interested in
helping out with how to get it mounted in the valve if that has not already
been resolved.

Then there is (3) which is the intended primary target of the REV7 board,
which is to live in a purpose-designed OpenTRV valve body driving a motor
and thus the valve pin directly.

Rgds

Damon
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