What does this implement/fix?

Adds support for the ES8311 codec chip as an audio_dac component. The S3 Box 3 uses this for handling audio output. It supports volume and mute control in hardware.

I built this from the unmerged #4861, and so I listed @kroimon as a codeowner. If you would prefer not to be included, please let me know. I adapted that code to the audio_dac platform and exposed more yaml configuration options.

Note that this only handles audio out on the S3 box, not audio in. So it only removes the requirement for the esp_adf component's speaker. I haven't tested pairing this component with the esp_adf microphone in a voice assistant, so that may not work!

Requires the already merged #7664 to handle volume control with the speaker component.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code quality improvements to existing code or addition of tests
• Other

Related issue or feature (if applicable):

• partially implements Support for ESP32-S3-BOX peripherals + voice_assistant feature-requests#2239

Pull request in esphome-docs with documentation (if applicable):

• [es8311]] Document new ES8311 component esphome-docs#4400

Test Environment

• ESP32
• ESP32 IDF
• ESP8266
• RP2040
• BK72xx
• RTL87xx

Example entry for config.yaml:

# Example config.yaml

# Sets up the S3 Box 3's speaker

external_components:
  - source: github://pr#7672
    components:
      - audio
      - speaker
      - i2s_audio
    refresh: 0s

audio_dac:
  - platform: es8311
    id: es8311_dac
    bits_per_sample: 16bit
    sample_rate: 16000

i2s_audio:
  - id: i2s_output
    i2s_lrclk_pin: GPIO45
    i2s_bclk_pin: GPIO17
    i2s_mclk_pin: GPIO23

speaker:
  - platform: i2s_audio
    i2s_audio_id: i2s_output
    id: speaker_id
    i2s_dout_pin: GPIO15
    dac_type: external
    sample_rate: 16000
    bits_per_sample: 16bit
    channel: stereo
    audio_dac: es8311_dac

switch:
  - platform: gpio
    name: "Speaker Enable"
    pin: GPIO46
    restore_mode: RESTORE_DEFAULT_ON

number:
  - platform: template
    name: "Speaker Volume"
    optimistic: true
    min_value: 0.0
    max_value: 1.0
    step: 0.05
    on_value:
      speaker.volume_set: !lambda "return x;"

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.