home-assistant.io/source/_docs/z-wave/installation.markdown
2017-11-01 15:41:00 +00:00

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page Z-Wave Installation of the Z-Wave component. 2017-09-21 10:00 true false true true /getting-started/z-wave-installation/

On Linux platforms (other than Hass.io) there is one dependency you will need to have installed ahead of time (included in systemd-devel on Fedora/RHEL systems):

$ sudo apt-get install libudev-dev

On Python 3.6 you may also have to install libpython3.6-dev, and possibly python3.6-dev.

When installing on macOS you may have to also run the command below ahead of time, replace "x.x" with the version of Python ($ python3 --version) you have installed.

$ sudo /Applications/Python\ x.x/Install\ Certificates.command

The installation of python-openzwave can take half an hour or more on a Raspbery Pi.

{% linkable_title Configuration %}

# Example configuration.yaml entry
zwave:
  usb_path: /dev/ttyUSB0

{% configuration zwave %} usb_path: description: The port where your device is connected to your Home Assistant host. required: false type: string default: /zwaveusbstick network_key: description: The 16-byte network key in the form "0x01, 0x02..." used in order to connect securely to compatible devices. required: false type: string default: None config_path: description: The path to the Python OpenZWave configuration files. required: false type: string default: the 'config' that is installed by python-openzwave autoheal: description: Allows disabling auto Z-Wave heal at midnight. required: false type: boolean default: True polling_interval: description: The time period in milliseconds between polls of a nodes value. Be careful about using polling values below 30000 (30 seconds) as polling can flood the zwave network and cause problems. required: false type: integer default: 60000 debug: description: Print verbose z-wave info to log. required: false type: boolean default: False new_entity_ids: description: Switch to new entity_id generation. required: false type: boolean default: True device_config: description: This attribute contains node-specific override values. (For releases prior to 0.39 this variable is called customize) See Customizing devices and services for the format. required: false type: string, list keys: ignored: description: Ignore this entity completely. It won't be shown in the Web Interface and no events are generated for it. required: false type: boolean default: False polling_intensity: description: Enables polling of a value and sets the frequency of polling (0=none, 1=every time through the list, 2=every other time, etc). If not specified then your device will not be polled. required: false type: integer default: 0 refresh_value: description: Enable refreshing of the node value. Only the light component uses this. required: false type: boolean default: False delay: description: Specify the delay for refreshing of node value. Only the light component uses this. required: false type: integer default: 2 invert_openclose_buttons: description: Inverts function of the open and close buttons for the cover domain. required: false type: boolean default: False {% endconfiguration %}

{% linkable_title Finding the controller path on Linux %}

If you're using Hass.io please follow [these setup instructions](/hassio/zwave/) for finding the controller path.

To find the path of your Z-Wave USB stick or module, connect it to your system and run:

$ ls -ltr /dev/tty*|tail -n 1

That will give you a line that looks something like this:

crw-rw---- 1 root dialout 204, 64 Sep 21 10:25 /dev/ttyUSB0

Where the date and time displayed is approximately the time you connected the USB stick or module (it may also be something like /dev/ttyAMA0 or /dev/ttyACM0). The number will be zero for the first device connected, and higher numbers for later devices.

Or, if there is no result, try to find detailed USB connection info with:

$ dmesg | grep USB

If Home Assistant (hass) runs with another user (e.g. homeassistant on Hassbian) give access to the stick with:

$ sudo usermod -a -G dialout homeassistant

The output from `ls -ltr` above contains the following information The device type is `c` (character special) and permissions are `rw-rw----`, meaning only the owner and group can read and write to it, there is only `1` link to the file, it is owned by `root` and can be accessed by the group `dialout`, it has a major device number of `204`, and a minor device number of `64`, the device was connected at `10:25` on `21 September`, and the device is `/dev/ttyUSB0`.

{% linkable_title Creating a Persistent Device Path %}

Depending on what's plugged into your USB ports, the name found above may change. You can lock in a name, such as /dev/zwave, by following these instructions.

{% linkable_title Finding the controller path on macOS %}

On macOS you can find the USB stick with:

$ ls /dev/cu.usbmodem*

{% linkable_title Network Key %}

Security Z-Wave devices require a network key before being added to the network using the Add Secure Node button in the Z-Wave Network Management card. You must set the network_key configuration variable to use a network key before adding these devices.

An easy script to generate a random key:

cat /dev/urandom | tr -dc '0-9A-F' | fold -w 32 | head -n 1 | sed -e 's/\(..\)/0x\1, /g' -e 's/, $//'

Ensure you keep a backup of this key. If you have to rebuild your system and don't have a backup of this key, you won't be able to reconnect to any security devices. This may mean you have to do a factory reset on those devices, and your controller, before rebuilding your Z-Wave network.

{% linkable_title First Run %}

Upon first run, the zwave component will take time to initialize entities and entities may appear with incomplete names. Running a network heal may speed up this process.