@martinhjelmare Thanks, you post helped me in the right direction for a problem I had :) My hass also would not register a sensor and it's solved now.

Hi there, I had a similar problem gw and sensor saw each other but the sensor did not get an id. Later I found that the controller hands out the id's, not the gateway. So when I connected the controller to the gw and configured it to use the gw arduino it worked. Not sure if this is your problem also but just in case :)
Greets,
Mark