How to count the number of zwave hardware devices

Configuration Z-Wave
1

Before updating to zwave js I was able to the number of hardware devices by the following. After updating my zwave networke zwave js I get 0. Can someone point me to how to change this to count zwave js hardware devices. Thanks


      count_zwave_devices:
        friendly_name: 'ZWave'
        icon_template: mdi:z-wave
        value_template: >
          {%- set domains = ['zwave'] -%}
          {%- for domain in domains -%}
            {%- for item in states[domain] -%}
              {% if loop.first %}
                {{loop.length}}
              {% endif %}
            {%- endfor -%}
          {%- endfor -%}
2

As far as I know there is no way to do that directly.

But I think you could do that in a bit more round about way:

First you’ll need to make sure that the “node Status” sensor is enabled for all of your entities. It’s a good bit of info to have even outside of this.

then you can use the following to get the count of devices since each device has a node status sensor:

{% for state in states if (state.entity_id.find("node_status") | int>=0) %}
  {% if loop.first %}
    {{loop.length}}
  {% endif %}
{% endfor %}
3

Thank you…it only found one device :frowning_face:

4

The node status sensor is disabled by default so you need to manually enable all of them.

Something to check.

5

Untitled
Untitled342Ă—702 19.4 KB

is this what you are talking about?

6

no.

ex
ex324Ă—644 29.6 KB

it will be listed under the disabled entities at the bottom of that box.

But you also need to make sure it has the words “node_status” in the entity_id.

it should have that by default but just check to be sure.

7

Thank you so much that worked, now I’ll go thru all my zwave devices and change that

8

Now that you’ve got that working there is another form of a template that I’m going to use (credit goes to Rob Colman and Taras as a by-product in another thread):

you can use this to get the number of nodes:

{{ states|selectattr('object_id', 'search', 'node_status')|list|count }}

You can also create a sensor to give you the number of alive nodes out of the total number of nodes:

{% set total = states|selectattr('object_id', 'search', 'node_status')|list|count %}
{% set dead = states|selectattr('object_id', 'search', 'node_status')|selectattr('state', 'in', 'dead, unavailable, unknown') | list | count %}
{{ total - dead }} Alive/{{ total }} Total

it will return a value of something like “27 Alive/29 Total” if you have 2 dead nodes.

9

Thank you very very much, I’ll give that a try also

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