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Cake day: June 3rd, 2024

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  • FYI, here’s the config yaml I’m copy-pasting for all my Echos. The only thing that changes are in the “substitutions” section:

    substitutions:
      name: m5stack-echo-kitchen
      friendly_name: M5Stack Atom Echo - Kitchen
      media_player: kitchen_speaker
      encryption_key: !secret kitchen_encryption_key
      speaker_i2s_dout_pin: "GPIO21"
    
    esphome:
      name: ${name}
      name_add_mac_suffix: false
      friendly_name: ${friendly_name}
      project:
        name: m5stack.atom-echo-voice-assistant
        version: "1.0"
      min_version: 2024.6.0
    
    esp32:
      board: m5stack-atom
      framework:
        type: esp-idf
    
    api:
      encryption:
        key: ${encryption_key}
    
    ota:
      - platform: esphome
        id: ota_esphome
    
    dashboard_import:
      package_import_url: github://esphome/firmware/voice-assistant/m5stack-atom-echo.yaml@main
    
    wifi:
      ssid: !secret wifi_ssid
      password: !secret wifi_password
      on_connect:
        - delay: 5s  # Gives time for improv results to be transmitted
        - ble.disable:
      on_disconnect:
        - ble.enable:
      ap:
    
    improv_serial:
    
    esp32_improv:
      authorizer: none
    
    button:
      - platform: factory_reset
        id: factory_reset_btn
        name: Factory reset
    
    i2s_audio:
      - id: i2s_audio_bus
        i2s_lrclk_pin: GPIO33
        i2s_bclk_pin: GPIO19
    
    microphone:
      - platform: i2s_audio
        id: echo_microphone
        i2s_din_pin: GPIO23
        adc_type: external
        pdm: true
    
    speaker:
      - platform: i2s_audio
        id: echo_speaker
        i2s_dout_pin: ${speaker_i2s_dout_pin}
        dac_type: external
        mode: mono
    
    voice_assistant:
      id: va
      microphone: echo_microphone
      speaker: echo_speaker
      noise_suppression_level: 2
      auto_gain: 31dBFS
      volume_multiplier: 2.0
      on_listening:
        - light.turn_on:
            id: led
            blue: 100%
            red: 0%
            green: 0%
            effect: "Slow Pulse"
      on_stt_vad_end:
        - light.turn_on:
            id: led
            blue: 100%
            red: 0%
            green: 0%
            effect: "Fast Pulse"
      on_tts_start:
        - light.turn_on:
            id: led
            blue: 100%
            red: 0%
            green: 0%
            brightness: 100%
            effect: none
      on_tts_end:
        - homeassistant.service:
            service: media_player.play_media
            data:
              entity_id: media_player.${media_player}
              media_content_id: !lambda 'return x;'
              media_content_type: music
              announce: "false"
      on_end:
        - delay: 100ms
        - wait_until:
            not:
              speaker.is_playing:
        - script.execute: reset_led
      on_error:
        - light.turn_on:
            id: led
            red: 100%
            green: 0%
            blue: 0%
            brightness: 100%
            effect: none
        - delay: 1s
        - script.execute: reset_led
      on_client_connected:
        - if:
            condition:
              switch.is_on: use_wake_word
            then:
              - voice_assistant.start_continuous:
              - script.execute: reset_led
      on_client_disconnected:
        - if:
            condition:
              switch.is_on: use_wake_word
            then:
              - voice_assistant.stop:
              - light.turn_off: led
      on_timer_finished:
        - voice_assistant.stop:
        - switch.turn_on: timer_ringing
        - wait_until:
            not:
              microphone.is_capturing:
        - light.turn_on:
            id: led
            red: 0%
            green: 100%
            blue: 0%
            brightness: 100%
            effect: "Fast Pulse"
        - while:
            condition:
              switch.is_on: timer_ringing
            then:
              - lambda: id(echo_speaker).play(id(timer_finished_wave_file), sizeof(id(timer_finished_wave_file)));
              - delay: 1s
        - wait_until:
            not:
              speaker.is_playing:
        - light.turn_off: led
        - switch.turn_off: timer_ringing
        - if:
            condition:
              switch.is_on: use_wake_word
            then:
              - voice_assistant.start_continuous:
              - script.execute: reset_led
    
    binary_sensor:
      - platform: gpio
        pin:
          number: GPIO39
          inverted: true
        name: Button
        disabled_by_default: true
        entity_category: diagnostic
        id: echo_button
        on_multi_click:
          - timing:
              - ON for at least 50ms
              - OFF for at least 50ms
            then:
              - if:
                  condition:
                    switch.is_on: timer_ringing
                  then:
                    - switch.turn_off: timer_ringing
                  else:
                    - if:
                        condition:
                          switch.is_off: use_wake_word
                        then:
                          - if:
                              condition: voice_assistant.is_running
                              then:
                                - voice_assistant.stop:
                                - script.execute: reset_led
                              else:
                                - voice_assistant.start:
                        else:
                          - voice_assistant.stop
                          - delay: 1s
                          - script.execute: reset_led
                          - script.wait: reset_led
                          - voice_assistant.start_continuous:
          - timing:
              - ON for at least 10s
            then:
              - button.press: factory_reset_btn
    
    light:
      - platform: esp32_rmt_led_strip
        id: led
        name: None
        disabled_by_default: true
        entity_category: config
        pin: GPIO27
        default_transition_length: 0s
        chipset: SK6812
        num_leds: 1
        rgb_order: grb
        rmt_channel: 0
        effects:
          - pulse:
              name: "Slow Pulse"
              transition_length: 250ms
              update_interval: 250ms
              min_brightness: 50%
              max_brightness: 100%
          - pulse:
              name: "Fast Pulse"
              transition_length: 100ms
              update_interval: 100ms
              min_brightness: 50%
              max_brightness: 100%
    
    script:
      - id: reset_led
        then:
          - if:
              condition:
                - switch.is_on: use_wake_word
                - switch.is_on: use_listen_light
              then:
                - light.turn_on:
                    id: led
                    red: 100%
                    green: 89%
                    blue: 71%
                    brightness: 60%
                    effect: none
              else:
                - light.turn_off: led
    
    switch:
      - platform: template
        name: Use wake word
        id: use_wake_word
        optimistic: true
        restore_mode: RESTORE_DEFAULT_ON
        entity_category: config
        on_turn_on:
          - lambda: id(va).set_use_wake_word(true);
          - if:
              condition:
                not:
                  - voice_assistant.is_running
              then:
                - voice_assistant.start_continuous
          - script.execute: reset_led
        on_turn_off:
          - voice_assistant.stop
          - lambda: id(va).set_use_wake_word(false);
          - script.execute: reset_led
      - platform: template
        name: Use listen light
        id: use_listen_light
        optimistic: true
        restore_mode: RESTORE_DEFAULT_ON
        entity_category: config
        on_turn_on:
          - script.execute: reset_led
        on_turn_off:
          - script.execute: reset_led
      - platform: template
        id: timer_ringing
        optimistic: true
        internal: true
        restore_mode: ALWAYS_OFF
        on_turn_on:
          - delay: 15min
          - switch.turn_off: timer_ringing
    
    external_components:
      - source: github://pr#5230
        components:
        refresh: 0s
      - source: github://jesserockz/esphome-components
        components: [file]
        refresh: 0s
    
    file:
      - id: timer_finished_wave_file
        file: https://github.com/esphome/firmware/raw/main/voice-assistant/sounds/timer_finished.wav
    
    logger:
    

  • (sorry about my delayed response, @JustEnoughDucks@feddit.nl )

    I’m sure that the install is successful because there are no errors during/after install, the Echo recognizes speech and interacts with Home Assistant, and when I change something in the yaml (e.g., which media player to pipe the audio to) the change takes effect.

    Here’s something weird: I believe the default pin for “speaker” should be GPIO22, and when I switch it to GPIO21 it should not work. This works on some of my Echos, but not all of them!

    Also weird: I think the standard pinout is:

    • GPIO0: Button (Boot)
    • GPIO19: LED (RGB)
    • GPIO21: I2C SDA
    • GPIO22: I2C SCL
    • GPIO23: Speaker (PWM output)
    • GPIO25: Microphone (Analog input)

    Though I don’t know what these mean, I tried setting “speaker” to GPIO18 - which apparently isn’t used- and still the audio comes out of the Echo speaker! But again, only on some of my Echos.

    I’d think that maybe some of these Echos are ignoring the GPIO setting for “speaker” and using a default, but these Echos used to work! (that is, they used to not play audio out of the Echo speaker when “speaker” was GPIO21). And so I want to think that maybe the ESPHome upgrade made them stop working, but all my Echos have the same upgrade and yet still some of them work.

    Is there a way to config the Echo speaker to have zero volume? If so, I could just set that and then who cares if the audio is piped to it.



  • Thanks for the help, @JustEnoughDucks@feddit.nl.

    I copied the yaml you suggested and made 2 changes:

    I changed the i2s_dout_pin from GPIO22 to GPIO21:

    speaker:
      - platform: i2s_audio
        id: echo_speaker
        i2s_dout_pin: GPIO21
        dac_type: external
        mode: mono
    

    …and added my on_tts_end with the media_player:

      on_tts_end:
        - homeassistant.service:
            service: media_player.play_media
            data:
              entity_id: media_player.${media_player}
              media_content_id: !lambda 'return x;'
              media_content_type: music
              announce: "false"
    

    This did compile and the audio output from the echo is played on the media_player, but the audio is also played on the Echo itself. Previously, changing the i2s_dout_pin from GPIO22 to GPIO21 prevented the Echo from playing the audio (I think by directing audio data to pin 21, which is not used).

    I’m not sure what you meant here:

    Media player is also a speaker using an arduino library (not compatible with esp_adf as that uses the esp-idf framework and not arduino). If you want to use the media player, you have to get rid of vad_threshold and the esp_adf.
    

    I tried removing “vad_threshold: 3” and the “esp_adf” component:

    external_components:
      - source: github://pr#5230
        components:
        refresh: 0s
      - source: github://jesserockz/esphome-components
        components: [file]
        refresh: 0s
    

    …but with the same result: audio plays on both the media_player and the Echo’s speaker.

    Instead of trying to prevent the audio from getting to the Echo’s speaker, is there a way to just turn the Echo’s speaker volume to zero?