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How does Homey address opentherm ?

Dextro3210Dextro3210
in Archive

Hi,

Is or will it be possible to connect homey with opentherm ? (2-wire)
Or will you support usb devices like http://otgw.tclcode.com/ ?

Thanks !

Comments

  • jovinkjovink Member

    Homey support Thermosmart and Thermosmart has opentherm

  • PeterGroenewegPeterGroeneweg Member

    But a hardware connection between Homey and an opentherm device can only be done with the usb port!
    Or you can connect Homey to Toon (for example) which is connected to an opentherm device.

  • MarcoFMarcoF Member
    edited July 2015

    Supporting an Opentherm Thermostat != Homey supporting OpenTherm

    Opentherm is a "encrypted" protocol and you will need specific hardware to interact with it.
    Thermosmart probably has a API and Homey talks to the API. So the Thermosmart does the Opentherm translation from/to Homey through the API.

    Homey only has 1 USB On-The-Go port and connecting other USB devices should be possible (as far as i understand Emile)

  • kriebelkouskriebelkous Member
    edited July 2015

    https://forum.athom.com/discussion/245/configuration-interface-and-other-questions#latest

    Some more on opentherm

  • Dextro3210Dextro3210

    kriebelkous said:
    https://forum.athom.com/discussion/245/configuration-interface-and-other-questions#latest

    Some more on opentherm

    From what I read there. No support for the serial version (duh), only support for specific thermostats with an API. (and no direct 2 wire support -- made sense)

    Best options are combing with arduino :-(
    So it's pretty safe to say that http://otgw.tclcode.com (usb version) will not be supported directly ...

  • pkarremanpkarreman Member

    There is also the zwave Heating Control from Benext that may work... Never got it running properly using a Vera zwave controller (didn't spend much time trying either). But I hope I'll have more luck using the Homey.

  • DD Member
    pkarreman said:

    There is also the zwave Heating Control from Benext that may work... Never got it running properly using a Vera zwave controller (didn't spend much time trying either). But I hope I'll have more luck using the Homey.

    When you receive your Homey, I'd really like to know if you can get the Heating Control to work. It seems like a good solution without having to buy a "smart" or "connected" thermostat.
  • MilanVanDenMuyzenbergMilanVanDenMuyzenberg Member
    See https://forum.athom.com/discussion/454/opentherm-gateway as well...
  • DD Member
    Thanks. I have a OTGW pcb lying around, but it requires much more fiddling with cables/usb/ethernet/wifi than the Heating Control. So before I begin gathering parts and start soldering the OTGW I'd like to know if Z-Wave is a good alternative.  :)
  • MilanVanDenMuyzenbergMilanVanDenMuyzenberg Member
    Wouldn't it be cheaper to just buy an assembled OTGW?
This discussion has been closed.