Regarding the water use I think it's very inaccurate to use "times flushed". Sometimes you hold the button pressed longer etc. A water meter on the inlet to the toilet is much better. If it's just the amount of water that is interesting that is. Havn't tried it myself, but Espeasy has water meter as ...

Now the ESP8266 turns on a LED connected to the NodeMCU.
Much better

OK. Sounds promising guys! Thanks.
The log looks good, no delay (same as "Last seen").

But it seems to me that it is the dummy switch that has the lag/delay?

Sorry, I'm new to Domoticz.
But isn't a dummy switch what I have set up with ESP made easy?

I have no sender for 433 Mhz or Z-wave yet.
But I can of course use a ESP8266 as receiver as a test.
I'll connect a LED to a gpio and run some tests.

Hello everybody, first post here :) I just started fiddeling with Domoticz. I'm a big Arduino fan and the NodeMCU with espeasy seemed lika a nice start. And boy it was easy! Worked on the first try. I also added a generic ESP8266 just as easy. But... I use both as a switch just to see that they talk ...