There's the UK-based OpenTRV (Thermostatic Radiator Valve).
https://twitter.com/OpenTRV http://opentrv.org.uk
Their mailing list has gone quiet so I don't know current status (they have working prototypes) but the product is open source control for individual radiators (the valve) with a central hub. "On the radiators, you screw on a thermostatic radiator valve (TRV) that can be switched on and off by radio. The OpenTRV control unit is a separate small box with just a couple of buttons and a single LED. It senses the temperature and whether anyone is in the room and if it decides or is instructed to heat up the room, signals the TRV on the radiator to open up. There is another OpenTRV unit attached to the boiler and when that unit hears the call from an OpenTRV unit to its radiator, switches on the boiler to provide hot water." http://opentrv.org.uk/what-is-opentrv/
Probably not grant-approval ready but not vapourware and seem approachable from past on mailing list.
-- Chris H
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On Mon, 22 Jan 2018, at 11:59 AM, David Rabel wrote:
Hi Daniel,
I'm not sure if I understand perfectly what you are looking for.
I know there is (was?) a group called osdomotics, mainly from austria, aiming to push forward home automation solutions built on free/open technology. http://osdwiki.open-entry.com/doku.php/:en:start
We built a heating control based on free components, you may want to have a look at it: https://noresoft.com/heating_control_en.html Unfortunately it never got further than that prototype.
Yours David
On 22.01.2018 10:20, Daniel Pocock wrote:
There are government grants in Ireland for heating controls, I put more details on my blog[1].
Is anybody aware of technology for this purpose that is running free software and interfaces with free/open standards?
Can this be achieved using a custom solution with Raspberry Pi or similar devices running free software?
Regards,
Daniel
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