I’ve got a fan who’s state/speed is controlled with esphome and two relays - exposed to homeassistant as switches:
The esp is handling the physical buttons on the fan nicely.
I’m struggling with the set_speed part of the template. I’ve pseudocoded it out below. Can anybody point me in the right direction?
Thanks
fan:
- platform: template
fans:
office_fan:
speed_template: >
{% if is_state('switch.office_fan_low_speed', 'on') and is_state('switch.office_fan_medium_speed', 'on') %}
medium
{% elif is_state('switch.office_fan_low_speed', 'on') %}
low
{% elif is_state('switch.office_fan_medium_speed', 'on') %}
high
{% endif %}
value_template: >
{% if is_state('switch.office_fan_low_speed', 'on') or is_state('switch.office_fan_medium_speed', 'on') %}
on
{% else %}
off
{% endif %}"
turn_on:
service: switch.turn_on
data_template:
entity_id: switch.office_fan_low_speed
turn_off:
- service: switch.turn_off
data_template:
entity_id: switch.office_fan_low_speed
- service: switch.turn_off
data_template:
entity_id: switch.office_fan_medium_speed
set_speed:
{{if speed = low}}
- service: switch.turn_ON
data_template:
entity_id: switch.office_fan_LOW_speed
- service: switch.turn_OFF
data_template:
entity_id: switch.office_fan_MEDIUM_speed
{{if speed = medium}}
- service: switch.turn_ON
data_template:
entity_id: switch.office_fan_LOW_speed
- service: switch.turn_ON
data_template:
entity_id: switch.office_fan_MEDIUM_speed
{{if speed = high}}
- service: switch.turn_OFF
data_template:
entity_id: switch.office_fan_LOW_speed
- service: switch.turn_ON
data_template:
entity_id: switch.office_fan_MEDIUM_speed
1 Like
123
August 18, 2020, 12:05am
2
When only this switch is on it’s LOW speed:
switch.office_fan_low_speed
Yet for some reason the switch used to set HIGH speed is called:
switch.office_fan_medium_speed
and to set MEDIUM speed both the low and medium switches are turned on.
May I suggest that you rename this:
switch.office_fan_medium_speed
to this:
switch.office_fan_high_speed
That will make it less confusing when composing the template.
1 Like
123
August 18, 2020, 1:01am
3
Here’s what I suggest you do.
Create an input_boolean and an input_text. They will be used to track the Office Fan’s power-state and speed, respectively.
input_boolean:
office_fan:
name: Office Fan Power
input_text:
office_fan:
name: Office Fan Speed
The following Template Fan assumes you have renamedswitch.office_fan_medium_speedswitch.office_fan_high_speed
I have tested it on my system and confirmed it works. Let me know if it works for you.
fan:
- platform: template
fans:
office_fan:
value_template: "{{states('input_boolean.office_fan')}}"
speed_template: "{{states('input_text.office_fan')}}"
turn_on:
- service: input_text.set_value
data:
entity_id: input_text.office_fan
value: 'low'
- service: homeassistant.turn_on
entity_id: switch.office_fan_low_speed, input_boolean.office_fan
turn_off:
- service: homeassistant.turn_off
entity_id: switch.office_fan_low_speed, switch.office_fan_high_speed, input_boolean.office_fan
set_speed:
- service_template: "switch.turn_{{'on' if speed in ['low', 'medium'] else 'off'}}"
entity_id: switch.office_fan_low_speed
- service_template: "switch.turn_{{'on' if speed in ['high', 'medium'] else 'off'}}"
entity_id: switch.office_fan_high_speed
- service: input_text.set_value
data_template:
entity_id: input_text.office_fan
value: '{{speed}}'
2 Likes
Stumbled across this post when looking for a solution to a similar setup. I have a two speed fan with two speed circuits, low and high speed. I have a relay for each, with the high speed common fed from the low NC relay. This prevents both circuits from being turned on at the same time.
In HA, I needed a fan where:
After adding both relays as MQTT switches, here’s the config I used for the fan. Hope this helps anyone doing something similar!
- platform: template
fans:
stove_fan:
friendly_name: "Stove Fan"
value_template: >
{%- if states.switch.stove_fan_relay_low.state == 'on' or states.switch.stove_fan_relay_high.state == 'on' -%} on
{%- else -%} off
{%- endif %}
percentage_template: >
{%- if states.switch.stove_fan_relay_low.state == 'on' -%} 50
{%- elif states.switch.stove_fan_relay_high.state == 'on' -%} 100
{%- else -%} 0
{%- endif %}
turn_on:
service: homeassistant.turn_on
entity_id: switch.stove_fan_relay_low
turn_off:
service: homeassistant.turn_off
entity_id: switch.stove_fan_relay_low, switch.stove_fan_relay_high
set_percentage:
- service_template: >-
{%- if (percentage > 0) and (percentage <=50) -%} homeassistant.turn_on
{%- else -%} homeassistant.turn_off
{%- endif %}
entity_id: switch.stove_fan_relay_low
- service_template: >
{%- if (percentage > 50) and (percentage <=100) -%} homeassistant.turn_on
{%- else -%} homeassistant.turn_off
{%- endif %}
entity_id: switch.stove_fan_relay_high
speed_count: 2
3 Likes
vxav07
January 11, 2024, 8:38am
5
Did I miss something here? It is not templating for me.
'speed' is undefined
I tried with this instead, it templates but the the new fan entity isn’t created.
value: "{{state_attr('fan.vmc_fan','speed')}}"
123
January 11, 2024, 10:06am
6
Post the configuration of your Template Fan.
When the fan is off, the speed attribute doesn’t exist.
vxav07
January 14, 2024, 12:17pm
7
I tried adding the following in the turn-off section but still no luck. The template isn’t created in my entites, meaning the input_text/boolean aren’t updated as a result (FYI).
- service: input_text.set_value
data:
entity_id: input_text.vmc_fan
value: 'off'
Is that syntaxe still correct with the new templating syntaxe ?
fan:
- platform: template
fans:
vmc_fan:
friendly_name: "VMC Fan"
value_template: "{{states('input_boolean.vmc_fan')}}"
speed_template: "{{states('input_text.vmc_fan')}}"
turn_on:
- service: input_text.set_value
data:
entity_id: input_text.vmc_fan
value: 'low'
- service: homeassistant.turn_on
entity_id: switch.vmc_l1, input_boolean.vmc_fan
turn_off:
- service: homeassistant.turn_off
entity_id: switch.vmc_l1, switch.vmc_l2, input_boolean.vmc_fan
- service: input_text.set_value
data:
entity_id: input_text.vmc_fan
value: 'off'
set_speed:
- service_template: "switch.turn_{{'on' if speed in ['low'] else 'off'}}"
entity_id: switch.vmc_l1
- service_template: "switch.turn_{{'on' if speed in ['high'] else 'off'}}"
entity_id: switch.vmc_l2
- service: input_text.set_value
data_template:
entity_id: input_text.vmc_fan
value: '{{ speed }}'
EDIT (HA logs - investigating)
2024-01-14 13:16:15.702 ERROR (MainThread) [homeassistant.config] Invalid config for 'fan.template' at configuration.yaml, line 122: 'speed_template' is an invalid option for 'fan.template', check: fans->vmc_fan->speed_template, please check the docs at https://www.home-assistant.io/integrations/template
Invalid config for 'fan.template' at configuration.yaml, line 137: 'set_speed' is an invalid option for 'fan.template', check: fans->vmc_fan->set_speed, please check the docs at https://www.home-assistant.io/integrations/template
123
January 14, 2024, 12:47pm
8
No. The set_speed option no longer exists. A fan’s ‘speed’ is now called ‘speed percentage’ which is a number between 0 and 100 and configured by the set_percentage option.
Do what the error message suggests and read the documentation . It includes three examples showing the new syntax.
vxav07
January 14, 2024, 1:12pm
9
Yep, that configuration works fine for me
input_boolean:
vmc_fan:
name: VMC Fan Power
input_number:
fan_percentage:
name: VMC Percentage
initial: 0
min: 0
max: 100
step: 50
fan:
- platform: template
fans:
vmc_fan:
friendly_name: "VMC Fan"
value_template: "{{ states('input_boolean.vmc_fan') }}"
turn_on:
- service: input_boolean.turn_on
target:
entity_id: input_boolean.vmc_fan
turn_off:
- service: input_boolean.turn_off
target:
entity_id: input_boolean.vmc_fan
- service: switch.turn_off
entity_id: switch.vmc_l1
- service: switch.turn_off
entity_id: switch.vmc_l2
percentage_template: >
{{ states('input_number.fan_percentage') if is_state('input_boolean.state', 'on') else 0 }}
speed_count: 2
set_percentage:
- service: input_boolean.turn_{{ 'on' if percentage > 0 else 'off' }}
target:
entity_id: input_boolean.vmc_fan
- service: input_number.set_value
target:
entity_id: input_number.fan_percentage
data:
value: "{{ percentage }}"
- service_template: "switch.turn_{{'on' if percentage == 50 else 'off'}}"
entity_id: switch.vmc_l1
- service_template: "switch.turn_{{'on' if percentage == 100 else 'off'}}"
entity_id: switch.vmc_l2
123
January 14, 2024, 1:23pm
10
For future reference, many versions ago, service_template was deprecated in favor of simply service and configured like this:
- service: "switch.turn_{{'on' if percentage == 50 else 'off'}}"
target:
entity_id: switch.vmc_l1
- service: "switch.turn_{{'on' if percentage == 100 else 'off'}}"
target:
entity_id: switch.vmc_l2
There’s also a new form of if statement available called an Immediate If . It’s useful for situations where the ‘then’ and ‘else’ contain constants.
- service: "switch.turn_{{ iif(percentage == 50, 'on' , 'off') }}"
target:
entity_id: switch.vmc_l1
- service: "switch.turn_{{ iif(percentage == 100, 'on', 'off') }}"
target:
entity_id: switch.vmc_l2
1 Like
(edit: fixed turn off)