Hi guys,
is there a way to upgrade existing normal light switches with a 433mhz module or something like that so I can still switch the light on with the old switch but also with pimatic, AND see the status of the light in Pimatic?
I know there are modules from intertechno to put behind the normal wall switch, but with these you never see in pimatic if the light is on, they are only receivers.
Is there a way to achieve this?