Yep, I started a topic in the Synology - Domoticz forum. Thanks for the reply's all.

Hi AWI,

thanks for reaction. I did, but nothing happens.

Today I installed Domoticz on my Windows machine. Everything works perfect in Windows. Gateway and motion sensor are recognized.

So I guess its a communication problem in my Synology NAS.

I noticed that the Gateway did not send a node number to the sensor. So I now use a predefined ID. It seems it works perfect on the Mysensor side. But still no node in the Domoticz. I guess I post a message in their forum.

@Billy123: the nRF is connected to the 3.3v of the Arduino Uno. Is a Cap needed?

@hek: tx!

Two weeks ago I build my first sensor and USB gateway. Connected the gateway to Domoticz. No node pops up. Before starting a post in the Domoticz forum: can someone assure me that the problem is not in the Sensor or Gateway?

The Gateway:

The Motion Sensor:

I like this Mysensor thing a lot, but get frustrated it doesn't work