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emsesp / EMS-ESP

ESP8266 firmware to read and control EMS and Heatronic compatible equipment such as boilers, thermostats, solar modules, and heat pumps
https://emsesp.github.io/docs
GNU Lesser General Public License v3.0
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Opentherm converter as thermostat #68

Closed renehonig closed 5 years ago

renehonig commented 5 years ago

Hi Paul, Another one:

I use a Nefit Opentherm to EMS Converter for my system (with a Honeywell Modulating Thermostat). I have added it in my ems_devices.h, and it is recognised, but does not seem to be readable (I am not sure whether it is dependent on the actual OT thermostat used).

Here is the line I added (probably quicker than a pull request...): {EMS_MODEL_OT, 171, 0x02, "Opentherm converter", EMS_THERMOSTAT_READ_NO, EMS_THERMOSTAT_WRITE_NO}

Best, Rene

proddy commented 5 years ago

There was someone else with a similar problem using the OpenTherm EMS converter. It doesn't seem to be able to handle all the message types. It could be the code or the circuit but difficult to determine without further testing.

renehonig commented 5 years ago

Agree, ultimately I would like to get rid of it and control the heating directly through the EMS bus. Need to look at setting flow temperatures etc, through MQTT, but that is off-topic...