Johan, were is your domoticz server in this scheme?
I would expect: Proximity switch --> Arduino+Eth shield --> Domoticz server (RPi?)

When using the eth shield you can send the data direct to Domoticz like in https://www.domoticz.com/forum/viewtopic.php?t=12934

You could also use something like ...

Hello Johan:

I used de standar MySensor project, just did some fine tuning on the multipliers. I'l also usind radio connetion betewen the two arduino, not ethernet. Why do you need ethernet?

Hnogueira


Thanks for your response.
The reason for my ethernet connection instead of Wifi is that I ...

Dear Lee,

First of all, my compliments for this project.

I also want to monitor my water meter through an Arduino (nano with Ethernet shield) with Domoticz (Raspberry Pi 3b).
So my configuration is very similar to yours.

Unfortunately I can not program, an IP address in a script can still be ...