Can't get RFXTRX to add my sensors

Many thanks so far and good to know that you have the same pir’s so we know for sure it should be possible to get it up and running…the cd home-assistant is very helpfull, but still not working.

Home Assistant is installed in a virtual Python environment in my case (see https://home-assistant.io/docs/hassbian/installation/) could this be the reason that these instructions don’t work in my case? Any advice?

The steps I followed were:
cd
git clone https://github.com/y-pollart/home-assistant
cd home-assistant
git checkout rfxtrx-binary-sensor

→ results:
Branch rfxtrx-binary-sensor set up to track remote branch rfxtrx-binary-sensor from origin.
Switched to a new branch ‘rfxtrx-binary-sensor’

Next need to find where HASS is installed via
sudo find / -name homeassistant
→ results:
/srv/homeassistant/

Stopped home-assistant via user interface and copied files:
sudo cp ~/home-assistant/homeassistant/components/rfxtrx.py /srv/homeassistant/lib/python3.4/site-packages/homeassistant/components
sudo cp ~/home-assistant/homeassistant/components/binary_sensor/rfxtrx.py /srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/binary_sensor

No feedback, so this worked…
To be sure:
cleaned configuration.yaml to minimum
sudo reboot

Results:
2017-06-13 20:29:35 ERROR (MainThread) [homeassistant.loader] Unable to find component binary_senor

Did several attempts with variations in the configuration.yaml

binary_senor: #nor switch, nor sensor it didn't do the trick.. 
  platform: rfxtrx
  automatic_add: True
  devices:
    09130000849826019180:
      name: motion_room1
      sensor_class: motion
      off_delay: 5