and to get the temperature on the balcony i do a get on the URL:
The "108" and "52" are the identities of the corresponding HomeItems, and you can get the identities by listing all HomeItems in the server with:
The full documentation of the interface is available here on the OpenNethome-site. The implementation is as usual available in the nightly build. Note that details of the interface my still change and feedback on the interface is welcome!