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The Homey Community has been moved to https://community.athom.com.
This forum is now read-only for archive purposes.
OpenTherm Gateway
MilanVanDenMuyzenberg
Member
in Developers
Is someone presently working on integration of Homey with the OpenTherm Gateway? The gateway proves to be very robust. Would be nice to control my heating via Homey and this gateway.
Comments
I'm also interested, currently I'm looking into a new heating system, interesting read here: (dutch,a lot, a lot of information) http://gathering.tweakers.net/forum/list_messages/1535288/0 the openterm gateway is mentioned a couple of times there.
When I'll get the Homey this will probably be my first project if I find the time. I use the OTGW for about a year now and I am satisfied with the stability (only had to reset it once) and the use (icm Domoticz).
@DieterKoblenz, can you please tell me how you see using it?
At the moment I'm compairing the Honeywell Evohome system and some solution with the Danfoss LC-13 thermostats and RWE Smarthome.
The Honeywell system is, as I see it, a finished and complete system, but 'locked down'. A system build around the Danfoss thermostats is not really readily available, so I wonder how others are using this and how they will make use of homey. The RWE Smarthome looks ok, but I'm not completely sure about it, partly after reading this: http://www.bright.nl/deathmatch-rwe-smarthome-vs-honeywell-evohome (dutch)
Oh you can not compare the OTGW with anything like the evohome or z-wave thermostats across the house.
As the name says it's a gateway between a regular (modulating) thermostat and an opentherm compatible CH system. Since I have a small appartement with four heated rooms I do not bother with different zones. I use the gateway to keep track on the temperature in the house and it gives me the possibility to overturn the normal program. So when I head home from work earlier I can put up the thermostat to 21 degrees and come home to a nice heated house.
Its the cheapest solution I could find for internet enabled thermostat control. Advanced solutions like the Evohome go into the hundreds of euros/dollars. If you have a (small) house and don't want to bother with zones ánd you have an opentherm compatible thermostat and CH system this could be a great solution.
Ah, Ok, thanks. I am looking into a system with multiple zones, so the only benefit of an OTGW would be for logging purposes then.
here is everything about the OTGW
http://otgw.tclcode.com/index.html#intro
http://www.domoticaforum.eu/viewforum.php?f=75
So a simple settings page and one thermostat device, with which you can change the temperature & see the room temp. Still lots of things I want to add. First of all: sensors (temperature, pressure etc.).
Seriously: I need to clean the code a bit and then I'll put a simple version on GitHub. Hope to get around to that coming weekend.
OTG only reads communication between one Opentherm thermostat and a Opentherm (gs)
You are right about the OTG and zones! OTG "only" controles the setpoint and Homey should take control of the zones.
https://github.com/nlrb/com.tclcode.otgw
MilanVanDenMuyzenberg for initial testing!
(They changed the API which broke the app...)
What converter do you use between the OTGW and Homey?
I can only find a serial or usb version of the gateway on kiwi-electronics.
Or would you like an API function similar like for the config data, such that you can use:
But yeah, an API similar to getotgconfig would be nice. You get a json response right? At the moment I am getting an not authenticated error even when I am using the bearer token. I checked your source but it says authentication is not required, right?