I have, also based on information found on this forum, integrated my Central Heating system into Homeseer.
I have build the opentherm gateway as described on http://tclcode.com/opentherm/
It turned out the timing of my Remeha Celcia 20 Room Thermostat was not 100% according Opentherm specification, but due to the great support of the developer (hvxl
on this forum) of the gateway this issue is solved. He also added the option to the gateway to give the status of all opentherm messages on request, which made it easy to integrate the gateway into Homeseer. All information about the gateway, including the schematic, part list, print layout , firmware, all possibilities and an optional monitoring program can be found on the mentioned website and is now also discussed on this forum, see here
Integration is done into Homseer with a lot of virtual devices and a script. I run this script every 1,5 minutes to update the status of my Central Heating system into Homeseer and I can control the setpoint for the room temperature via Homeseer as well.
The Devices (Devices not supported by my Boiler / Room Thermostat are hidden):
My programming skills are not great, so the code is not the most efficient, but it is functional.
: Version 02g of the script (attached). Changes:
FIXED: Creation of OTGW devices is now also possible via TELNET connection.20121209
: Version 02e of the script. Changes:
NEW: added create virtual device for temporary temprature control as 7th OTGW Device with Listbox (thanks Rutger);
FIXED: Telnet control (moved communication to Function SendMessage);
several clean up actions in the script (e.g. repaces spaces by tabs); debugOTGW settings more consistent;
improved execution speed by replacing waitsec(1) with waitMS(200).
corrected hscontrol to work with temperatures in tenths of decrees and corrected PR=O response;
minor layout improvements PR presentations;20111206
: Version 02 of the script. This version can communicate with the OT Gateway via Telnet or Serial port.
New: Communication via COM port or Telnet (based on setting in config file;
New: additional device(s) for the OT gateway itself;
New: all devices will be created when the scripts runs for the first time;
Change: renamed config file to hssi_BLB_OT_monitor.ini (hssi stands for HomeSeerScrIpt);
Change: all parameters, house codes and settings in the config file, no hardcoding anymore in the script itself.20111109
: Version 01 of the script. This version is communicating with the OT Gateway via Telnet.
You do not have the required permissions to view the files attached to this post.