Count all switches contains string in friendly name

Configuration
1

I’m trying to count all switches contains specific string in the friendly name field.
For example, all switches that contains the words ‘room’. Is it possible?

Thanks

2

This template will get you the count. You can make it in a template sensor. If you do that, make sure you attach an entity_id like sensor.time or sensor.date or sun.sun so the template periodically updates.

{% set ns = namespace(count=0) %}
{% set iter = states.switch | map(attribute='attributes.friendly_name') | list %}
{% for name in iter %}
{% if 'room' in (name | string).lower() %}
{% set ns.count = ns.count + 1 %}
{% endif %}
{% endfor %}
{{ ns.count }}
3

The template returns all entities that contains “room” at the friendly_name attribute,
Can It return only switches?

Thanks.

4

never mind. I just added “.switch” to “states” at line 2.
Thank you!

5

Yep, you got it. I’ll edit it for others. :wink: