[OpenTRV-interest] Adaptive comfort (and stuff)

Damon Hart-Davis dhd at exnet.com
Wed Jul 13 13:58:29 BST 2016

> On 13 Jul 2016, at 13:49, I8p <iatepee at yahoo.com> wrote:
> I am in the United States and would be all in. We have separate loops for various parts of the house so this would be nice. The issue is that, in the US, the ISM bands are in the 900 MHz range, rather than the 850/860 (IIRC) range in the UK/Europe. Is there a way we can change the radio ourselves or get a version with a US ok radio? If the devices use wifi or Bluetooth, that would solve things for us in the US as well. Also, I'm ok with things being connected online. I have Samsung smartthings and am enjoying it. 

The radio element is a big problem in getting this available for general sale.

We are aiming to have this CE certified to allow sales across the EU.

We are likely to have to use a new plug-in radio module (not our usual one) to achieve this, and it may have to be shipped after the valves.

We definitely will not have time or money to develop anything for other certification regimes at the moment.

However, depending on our radio selection you may be able to simply swap in a US-ready module for example.  Don’t hold your breath, but it’s not impossible.

Also, if you are *really* hands on, the code is open and it should be possible to tweak the radio code to work in US bands, but clearly we cannot officially sell that.  You’d be doing it under whatever local ‘tinkering’/‘reseatch’/‘engineering’ rules apply.



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