I now have three different types of bluetooth radiator valve controllers (because each time I want another one I look for the cheapest). They are the Equiva EQ3, the Blue Comet and the Xavax. Can I control all of these from OpenHAB? If so, do I need different addon’s for each device type, or are they all compatible?
I don’t think I require the temperature sensing features of these valves (because next to a radiator seems to me about the stupidest place that it is possible to imagine putting a thermostat) nor do I need the timed programme feature (because OpenHAB can do this) - I just need the ability to open and close the valve remotely from my Windows PC (or maybe in future from a Raspberry Pi or an ESP32).
Maybe, there is an unofficial bluetooth binding, though I think that mainly just reports the presence of BT devices, not controls BT devices. There might be another one, I’m not sure.
MDAR
(Stuart Hanlon, UK importer of Velbus hardware)
3
I couldn’t agree more.
I’m really interested to follow this thread as being able to fit some affordable and effective TRV value control for some customers who are unable to otherwise control a radiator is something I can’t offer right now.
There is the Fritz Dect 301 unit, but it’s not cheap and it does require a FritzBox (as far as I can tell)
MDAR
(Stuart Hanlon, UK importer of Velbus hardware)
5
Hi
Yeah, I saw that some time ago.
It’s a great setup
If I were to reproduce that, I’d probably opt for a WiFi relay
From Robot Electronics
{Update – I’ve just noticed that this relay supports MQTT}
But the holy grail would be a small battery powered (with optional local power) common protocol TRV head, that is just dumb and provides feedback about real valve position and power supply status.
