Z-Wave integration for Home Assistant allows you to observe and control connected Z-Wave devices. Z-Wave support requires a supported Z-Wave USB stick or module to be plugged into the host.

There is currently support for climate, covers, lights, locks, sensors, switches and thermostats. All will be picked up automatically after configuring this platform.

Installation in Virtualenv (python-OpenZWave)

If you installed Home Assistant using a virtual environment then please read the instructions on Installing python-OpenZWave in a virtualenv.


To allow Home Assistant to talk to your Z-Wave USB stick you will have to compile the OpenZWave library and install the related python-OpenZWave package. This can be done as follows. (Note: The Home Assistant docker image and the All In One installer have support for Z-Wave already built-in!)

Make sure you have the correct dependencies installed before running the script:

$ sudo apt-get install cython3 libudev-dev python3-sphinx python3-setuptools git

Make sure you have at least version 0.23 and at the most 0.24.1 of cython.

$ sudo pip3 install --upgrade cython==0.24.1

Then get the OpenZWave files and switch to the python3 branch:

Do not use root to build python-openzwave as it will surely fail.

$ git clone https://github.com/OpenZWave/python-openzwave.git
$ cd python-openzwave
$ git checkout python3
$ PYTHON_EXEC=$(which python3) make build
$ sudo PYTHON_EXEC=$(which python3) make install

Instead of make install, you can alternatively build your own python-openzwave package which can be easily uninstalled:

$ sudo apt-get install -y checkinstall
$ sudo PYTHON_EXEC=$(which python3) checkinstall --pkgname python-openzwave --pkgversion 1.0 --provides python-openzwave

With this installation, your config_path needed below will resemble:


If you followed along with setting up a virtual environment, your path will be:



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

Configuration variables:

  • usb_path (Optional): The port where your device is connected to your Home Assistant host.
  • config_path (Optional): The path to the Python OpenZWave configuration files. Defaults to the folder config in your Python OpenZWave install directory.
  • autoheal (Optional): Allows disabling auto Z-Wave heal at midnight. Defaults to True.
  • polling_interval (Optional): 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.
  • device_config (Optional): This attribute contains node-specific override values. (For releases prior to 0.39 this variable is called customize) See Customizing devices and services for format:
    • polling_intensity (Optional): 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.
    • ignored (Optional): Ignore this entity completely. It won’t be shown in the Web Interface and no events are generated for it.
    • refresh_value (Optional): Enable refreshing of the node value. Only the light component uses this. Defaults to False.
    • delay (Optional): Specify the delay for refreshing of node value. Only the light component uses this. Defaults to 2 seconds.
  • debug (Optional): Print verbose z-wave info to log. Defaults to False.

To find the path of your Z-Wave USB stick or module, run:

$ ls /dev/ttyUSB*

Or, on some other systems (such as Raspberry Pi), use:

$ ls /dev/ttyACM*

# If `hass` runs with another user (e.g. *homeassistant* on Hassbian) give access to the stick with:
$ sudo usermod -a -G dialout homeassistant

Or, on some other systems (such as Pine 64), use:

$ ls /dev/ttyS*

Or, on macOS, use:

$ ls /dev/cu.usbmodem*

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.

Adding Devices

To add a Z-Wave device to your system, go to the Services menu and select the zwave domain, and select the add-node service. Then find your device’s add button and press that as well.

Adding Security Devices

Security Z-Wave devices require a network key before being added to the network using the zwave.add_node_secure service. You must edit the options.xml file, located in your python-openzwave config_path to use a network key before adding these devices.

Edit your options.xml file:

  <!-- <Option name="NetworkKey" value="0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F 0x10" /> -->

Uncomment the line:

   <Option name="NetworkKey" value="0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10" />

You can replace these values with your own 16 byte network key. For more information on this process see the OpenZwave wiki article Adding Security Devices to OZW

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'



Home Assistant will trigger a event when the Z-Wave network is complete. Meaning all of the nodes on the network have been queried. This can take quite some time, depending on wakeup intervals on the battery powered devices on the network.

 - alias: Z-Wave network is complete
     platform: event
     event_type: zwave.network_complete


Home Assistant will trigger a event when the Z-Wave network is ready for use. Between zwave.network_start and zwave.network_ready Home Assistant will feel sluggish when trying to send commands to Z-Wave nodes. This is because the controller is requesting information from all of the nodes on the network. When this is triggered all awake nodes have been queried and sleeping nodes will be queried when they awake.

 - alias: Z-Wave network is ready
     platform: event
     event_type: zwave.network_ready


Home Assistant will trigger a event when the Z-Wave network is set up to be started.

 - alias: Z-Wave network is starting
     platform: event
     event_type: zwave.network_start


Home Assistant will trigger a event when the Z-Wave network stopping.

 - alias: Z-Wave network is stopping
     platform: event
     event_type: zwave.network_stop


Home Assistant will trigger a event when command_class_basic changes value on a node. This can be virtually anything, so tests have to be made to determine what value equals what. You can use this for automations.


 - alias: Minimote Button Pressed
     platform: event
     event_type: zwave.node_event
       object_id: aeon_labs_minimote_1
       basic_level: 255

The object_id and basic_level of all triggered events can be seen in the console output.


Some devices can also trigger scene activation events, which can be used in automation scripts (for example the press of a button on a wall switch):

# Example configuration.yaml automation entry
  - alias: Turn on Desk light
      platform: event
      event_type: zwave.scene_activated
        object_id: zwaveme_zme_wallcs_secure_wall_controller_8
        scene_id: 11

The object_id and scene_id of all triggered events can be seen in the console output.


The zwave component exposes multiple services to help maintain the network.

Service Description
add_node Put the Z-Wave controller in inclusion mode. Allows one to add a new device to the Z-Wave network.
add_node_secure Put the Z-Wave controller in secure inclusion mode. Allows one to add a new device with secure communications to the Z-Wave network.
cancel_command Cancels a running Z-Wave command. If you have started a add_node or remove_node command, and decides you are not going to do it, then this must be used to stop the inclusion/exclusion command.
change_association Add or remove an association in the Z-Wave network
heal_network Tells the controller to “heal” the Z-Wave network. Basically asks the nodes to tell the controller all of their neighbors so the controller can refigure out optimal routing.
print_config_parameter Prints Z-Wave node’s config parameter value to the log.
print_node Print all state of Z-Wave node.
refresh_entity Refresh Z-Wave entity by refreshing dependent values.
refresh_node Refresh Z-Wave node.
remove_node Put the Z-Wave controller in exclusion mode. Allows one to remove a device from the Z-Wave network.
rename_node Sets a node’s name. Requires an entity_id and name field.
remove_failed_node Remove a failed node from the network. The Node should be on the Controllers Failed Node List, otherwise this command will fail.
replace_failed_node Replace a failed device with another. If the node is not in the controller’s failed nodes list, or the node responds, this command will fail.
set_config_parameter Let’s the user set a config parameter to a node.
soft_reset Tells the controller to do a “soft reset”. This is not supposed to lose any data, but different controllers can behave differently to a “soft reset” command.
start_network Starts the Z-Wave network.
stop_network Stops the Z-Wave network.
test_network Tells the controller to send no-op commands to each node and measure the time for a response. In theory, this can also bring back nodes which have been marked “presumed dead”.

The soft_reset and heal_network commands can be used as part of an automation script to help keep a Z-Wave network running reliably as shown in the example below. By default, Home Assistant will run a heal_network at midnight. This is a configuration option for the zwave component, the option defaults to true but can be disabled by setting autoheal to false. Using the soft_reset function with some Z-Wave controllers can cause the Z-Wave network to hang. If you’re having issues with your Z-Wave network try disabling this automation.

# Example configuration.yaml automation entry
  - alias: soft reset at 2:30am
      platform: time
      after: '2:30:00'
      service: zwave.soft_reset

  - alias: heal at 2:31am
      platform: time
      after: '2:31:00'
      service: zwave.heal_network