[OpenTRV-interest] Where to start?

[Steven Daglish]

Hi Alasdair,

Thanks for the information. There's quite a bit to read there but there seems some good information to get started with.

I hadn't seen any Q-3 Max products so thanks again for pointing me in the right direction.

Steven

On 31 May 2014 11:03, Alasdair Macdonald <EMAIL ADDRESS HIDDEN> wrote:
>
> I don't know if your research led you to the Q-3 Max! products; your links shows something that AFAICT is either a clone or badged version of the Q3-Max! TRV. See:
>
> http://www.eq-3.de/
> http://www.conrad-electronic.co.uk/ce/en/overview/0812043/MAX-Heating-Control-Systems
> http://www.automatedhome.co.uk/hardware/eq-3-max-affordable-wireless-heating-control-with-your-smartphone-or-raspberry-pi.html
>
> I believe that Damon mentioned in his FOSDEM talk the Q-3 products (although my memory may be faulty).
>
> http://video.fosdem.org/2014/previews/fosdem/fosdem_2014/dv/AW1121/2014-02-02/13_02_31.ogv
> http://video.fosdem.org/2014/previews/fosdem/fosdem_2014/dv/AW1121/2014-02-02/13_27_09.ogv
> http://ftp.osuosl.org/pub/fosdem//2014/AW1121/Sunday/OpenTRV_resourceconstained_computing_less_is_more.webm
>
> My recollection is that the Q-3 Max! protocol may have been mentioned. That's probably the first thing you'd want to learn about. The automatedhome article links to :
>
> http://blog.hekkers.net/tag/elv-max/
>
> which might be a good place for you to discover more.
>
> HTH
>
>
>
> On 29 May 2014 12:49, Steven Daglish <EMAIL ADDRESS HIDDEN> wrote:
>>
>> Hi all,
>>
>>  
>>
>> I’ve been reading about the OpenTRV project for a bit now and I’m interested in seeing where I can help.
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>>  
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>> I’ve been wanting to do something similar myself for a while, so I’ve started developing my AVR programming skills. My background is in electronic engineering with more emphasis on control systems (I’ve done quite a bit of work no “cheap” hospital incubators, so have some experience in designing controls for heating systems).
>>
>>  
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>> However, before potentially getting involved in this project, I’d like to get hold of a TRV myself and start doing some “tinkering” so I can get a greater understanding of how they work and how to start designing a centralised control system. Therefore, I’d be grateful if anyone could point me towards a cheap eTRV device (I’m based in the UK) that I could take apart without horrying too much about wasting money if I brake it. I found the following system which I’m looking at purchasing, but not sure if anyone has any experience with it: http://www2.westfalia.net/shops/around_the_home/heating_and_cooling/radiators_and_accessories/radiator_thermostats/637720-electronic_radiator_thermostat.htm?gclid=CjgKEAjwtZucBRD77aiiq_v4xnASJABkAg8JWBXgSX6S_EZiV_g24E7HcHxwxTQxhuIW349WnKTI-_D_BwE&art_nr=108555
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>>  
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>> Really, the way I see it at the moment, I only really need a motorised TRV without any real controls, as I’ll be developing an AVR system to control the temperature, but I just can’t find one!
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>>  
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>> Thanks in advance for any information.
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