They recommend you to use one device per “server”. But i installed HA on the raspberry and installed deconz as standalone package. Then you just have to install the dependencies, which are missing (linux will do automaticly, when you tell it) and just activate the GPIO (which will deactivate your bluetooth on Pi 3!).
After this you go to HA frontend, Settings, Integrations and “pair” the deconz server with HA installation. Thats it.
Every device connected to deconz will be automaticly discovered by HA.
Screenshots will follow later 
great. I take it you don’t use Hassio? Ot else how could you have installed the deconz as standalone package?
There is a Deconz import tool in the Hassio, but i dont suppose it would enable using only the Raspbee board on the Hassio/Pi.
You can use raspbee directly on hassio PI if you want to. There is an add-on for it.
Guess it’s a biot of missunderstanding …
I installed hassbian on my RPi 2. Then put the raspbee shield on it and installed deConz from git (downloading the deb file). Then you are able to run deconz and hassio at the same device and don’t need to splitz them.
Although you have not all features (as you have no real backend from deconz), but still you have the funcionality.
But still mack to topic: Could someone take a look at my code and tell me, what i’m doing drong? 
Catching Tradfri motion sensor trigger
In addition:
Finnaly I splitted the rule into two identical with one time each.
Yesterday (and today) i noticed, the rule for the evening still works fine. The rule for the morning does not!
As the one rule is just an exact copy of the other, it must be the time-part, which breaks up