hi maxmax39,
i'm also looking for more information on Niko Home Control.
It is possible to control lights etc, but i haven't been able to accurately check the status of the lights: the external switches are also able to change the status without domoticz knowing about it.
The trick will be to make domoticz check the statuses at intervals i guess. This can be done by sending
{"cmd":"listactions"} to the NHC gateway. This lists a full list of all devices in you system, with the current status (p. ex.: 0 for off, 100 for on for regular lights)
i also think something has to be done with {"cmd":"startevents"}. It looks like this enables status feedback...?
Please, also take a look at djmoon's post
viewtopic.php?f=56&t=11114&p=82063#p79873 on how to construct the actions
Kind regs,
Tom