Home Assistant

Raspberry Pi Volume Central

Unlike using the media_player.volume_set this method will adjust the main output of the raspberry pi regardless of the platform that is outputting the audio. Therefore you could use this as a volume limiter to your media player running on your Raspberry Pi through Home Assistant.

You can add Raspberry Pi Volume Central in two ways. By adding some components (Automation, Shell Command, Group, Script, Input Slider) or simply by adding a package using the packages feature in Home Assistant.

1. Using The Packages Feature (Fast & Easy)

Simply download the raspberry_pi_volume_central.yaml file and move it to the sane directory where you have the configuration.yaml file.
Add the faloing to your configuration.yaml under homeassistant:

packages:

    raspberry_pi_volume_central: !include raspberry_pi_volume_central.yaml

3. restart home assistant find out how in the documentation or restart your raspberry pi sudo reboot

All Done

2. Add The Components (Advanced)

Home Assistant is going toward having a yaml file for every component (see Splitting up the configuration). I have structured my configuration.yaml so it takes advantage of !include to decorate the clutter in the configuration file. click here to see how I did it. (coming soon)

Automation File

- action:

   - service_template: shell_command.pi_volume_{{ trigger.to_state.state | int }}

   alias: Pi Volume

   condition: []

   id: 'pi_volume'

   trigger:

   - entity_id: input_slider.pi_volume

     platform: state

Input Slider File

pi_volume:

  icon: mdi:volume-high

  name: Volume

  initial: 70

  min: 0

  max: 100

  step: 10

Shell Command File

pi_volume_0: amixer cset numid=1 -- -10238

pi_volume_10: amixer cset numid=1 -- -5675

pi_volume_20: amixer cset numid=1 -- -3820

pi_volume_30: amixer cset numid=1 -- -2740

pi_volume_40: amixer cset numid=1 -- -1976

pi_volume_50: amixer cset numid=1 -- -1383

pi_volume_60: amixer cset numid=1 -- -942

pi_volume_70: amixer cset numid=1 -- -525

pi_volume_80: amixer cset numid=1 -- -195

pi_volume_90: amixer cset numid=1 -- 118

pi_volume_100: amixer cset numid=1 -- 400

Group File

pi_volume:

  icon: mdi:timer

  entities:

  - input_slider.pi_volume

  - script.mute_pi_script

  name: Raspberry Pi Volume

  view: false

Script File

mute_pi_script:

  alias: Mute Pi

  sequence:

  - data:

      entity_id: input_slider.pi_volume

      value: 0

    service: input_slider.select_value

restart home assistant find out how in the documentation or restart your raspberry pi sudo reboot

All Done

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