Input Number


Before version 0.55 this component was known as input_slider and did not have the mode configuration option.

The input_number component allows the user to define values that can be controlled via the frontend and can be used within conditions of automation. The frontend can display a slider, or a numeric input box. Changes to the slider or numeric input box generate state events. These state events can be utilized as automation triggers as well.

To enable this input number in your installation, add the following lines to your configuration.yaml:

# Example configuration.yaml entry
input_number:
  slider1:
    name: Slider
    initial: 30
    min: -20
    max: 35
    step: 1
  box1:
    name: Numeric Input Box
    initial: 30
    min: -20
    max: 35
    step: 1
    mode: box

Configuration variables:

  • [alias] (Required): Alias for the input. Multiple entries are allowed.
    • min (Required): Minimum value.
    • max (Required): Maximum value.
    • name (Optional): Friendly name of the input.
    • initial (Optional): Initial value when Home Assistant starts. Defaults to 0.
    • step (Optional): Step value for the slider. Defaults to 1.
    • mode (Optional): Can specify box, or slider. Defaults to slider.
    • unit_of_measurement (Optional): Unit of measurement in which the value of the slider is expressed in.
    • icon (Optional): Icon to display in front of the box/slider in the frontend. Refer to the Customizing devices page for possible values.

Automation Examples

Here’s an example of input_number being used as a trigger in an automation.

# Example configuration.yaml entry using 'input_number' as a trigger in an automation
input_number:
  bedroom_brightness:
    name: Brightness
    initial: 254
    min: 0
    max: 254
    step: 1
automation:
  - alias: Bedroom Light - Adjust Brightness
    trigger:
      platform: state
      entity_id: input_number.bedroom_brightness
    action:
      - service: light.turn_on
        # Note the use of 'data_template:' below rather than the normal 'data:' if you weren't using an input variable
        data_template:
          entity_id: light.bedroom
          brightness: '{{ trigger.to_state.state | int }}'

Another code example using input_number, this time being used in an action in an automation.

# Example configuration.yaml entry using 'input_number' in an action in an automation
input_select:
  scene_bedroom:
    name: Scene
    options:
      - Select
      - Concentrate
      - Energize
      - Reading
      - Relax
      - 'OFF'
    initial: 'Select'
input_number:
  bedroom_brightness:
    name: Brightness
    initial: 254
    min: 0
    max: 254
    step: 1
automation:
  - alias: Bedroom Light - Custom
    trigger:
      platform: state
      entity_id: input_select.scene_bedroom
      to: CUSTOM
    action:
      - service: light.turn_on
        # Again, note the use of 'data_template:' rather than the normal 'data:' if you weren't using an input variable.
        data_template:
          entity_id: light.bedroom
          brightness: '{{ states.input_number.bedroom_brightness.state | int }}'

Example of input_number being used in a bidirectional manner, both being set by and controlled by an MQTT action in an automation.

# Example configuration.yaml entry using 'input_number' in an action in an automation
input_number:
  target_temp:
    name: Target Heater Temperature Slider
    min: 1
    max: 30
    step: 1
    unit_of_measurement: step  
    icon: mdi:target
# This automation script runs when a value is received via MQTT on retained topic: setTemperature
# It sets the value slider on the GUI. This slides also had its own automation when the value is changed.
automation:
  - alias: Set temp slider
    trigger:
      platform: mqtt
      topic: "setTemperature"
    action:
      service: input_number.set_value
      data_template:
        entity_id: input_number.target_temp
        value: '{{ trigger.payload}}'
# This automation script runs when the target temperature slider is moved.
# It publishes its value to the same MQTT topic it is also subscribed to.
  - alias: Temp slider moved
    trigger:
      platform: state
      entity_id: input_number.target_temp
    action:
      service: mqtt.publish
      data_template:
        topic: "setTemperature"
        retain: true
        payload: '{{ states.input_number.target_temp.state | int }}'