Control por voz para el hogar inteligente con Home Assistant y reSpeaker XVF3800

Descripción general

Habla con espacios inteligentes con el nuevo ReSpeaker XMOS XVF3800 con XIAO ESP32S3: enciende o apaga las luces, sube el volumen de la música o incluso pregunta por el clima usando la voz.

En este capítulo usaremos el ReSpeaker XMOS XVF3800 con XIAO ESP32S3 y el asistente de voz de Home Assistant para conectar el interruptor inteligente Sonoff y así lograr el control por voz del interruptor de la luz.

Hardware necesario

ReSpeaker XVF3800 con XIAO ESP32S3	Dispositivo con Home Assistant	Sonoff BASICR2
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Actualización de firmware

Para obtener la mejor experiencia de reproducción, necesitamos actualizar el firmware de XMOS. Descarga el firmware desde aquí. En tu ordenador, conecta el ReSpeaker XMOS XVF3800 con XIAO ESP32S3 y ejecuta lo indicado en nuestra guía:

nota

La matriz de micrófonos XVF3800 necesita un MCLK de 12,288 MHz para funcionar, pero ESPHome (usado en Home Assistant) no puede generarlo debido a las limitaciones del API. Este firmware hace que el XVF3800 actúe como maestro I2S, de modo que pueda generar sus propios relojes sin necesitar MCLK del ESP32. Nuestro firmware soluciona esta limitación, por lo que el micrófono funciona correctamente con Home Assistant.

Puedes descargar el firmware desde aquí

La guía de instalación está aquí

Preparar ReSpeaker XMOS XVF3800 con XIAO ESP32S3

Ve a Home Assistant > Settings > Add-ons.

Haz clic en Add-on Store (normalmente en la parte inferior derecha)

En Official add-ons, busca e instala ESPHome Device Builder.

Después de la instalación, haz clic en Start para ejecutar el complemento ESPHome.

Activa Start on Boot, Watchdog y Show in Sidebar para un acceso más sencillo.

Desde la barra lateral de Home Assistant, ve a ESPHome Builder.

Haz clic en + NEW DEVICE.

Cuando se te solicite, haz clic en SKIP; crearemos la configuración manualmente.

Selecciona la nueva entrada de tu dispositivo y haz clic en EDIT.

Sustituye el contenido por tu configuración personalizada en YAML

important

Puedes encontrar el archivo YAML aquí

Una vez que tu YAML esté guardado, haz clic en INSTALL.

Elige Manual Download

Espera a que el firmware se compile.

Descarga el archivo de firmware .bin generado en tu ordenador.

Conecta la placa ESP32-S3 (con el XVF3800 conectado) a tu PC usando un cable USB tipo C.

Abre Web-ESPHome en Chrome o Edge.

Haz clic en CONNECT y elige el puerto serie adecuado

Una vez conectado, haz clic en INSTALL

Selecciona el archivo .bin que acabas de descargar.

Espera a que la instalación se complete (puede tardar unos minutos).

Cuando finalice correctamente, verás un mensaje de confirmación.

Vuelve a Home Assistant > Settings > Devices & Services.

Deberías ver ESPHome listado como una integración detectada.

Haz clic en CONFIGURE y luego en Submit para finalizar la configuración.

Añade tu dispositivo inteligente

Configura el dispositivo Sonoff BASICR2 según el manual de usuario del fabricante. Necesitarás crear una cuenta eWELink.

Instalar HACS

Si aún no está instalado, sigue la guía oficial para configurar la Home Assistant Community Store:

Abre HACS desde la barra lateral. Busca Sonoff LAN en la sección de búsqueda.

Haz clic en Install para añadir la integración. Reinicia Home Assistant para aplicar los cambios.

Sonoff

Ve a Settings → Devices & Services. Haz clic en Add Integration. Busca y selecciona Sonoff.

Introduce tus credenciales de la cuenta eWeLink para autenticarte.

Una vez conectado correctamente, verás las entidades asociadas listadas en: Settings → Devices & Services → Entities

Asistente de voz con Nabu Cloud

En esta demostración, mostramos cómo conectarse con Home Assistant Cloud (Nabu Casa) usando la voz. La configuración es sencilla y puedes aprovechar un mes de prueba gratuito para explorar todas sus capacidades. Con la palabra de activación integrada: “Okay Nabu”, puedes activar comandos de voz sin esfuerzo e integrarte sin problemas con dispositivos y servicios en cualquier lugar y en cualquier momento, todo ello sin configuraciones complejas.

Descripción YAML

WiFi

Esta sección configura cómo tu dispositivo se conecta a Wi‑Fi.

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

• ssid y contraseña: Tomados de tu archivo secrets.yaml para que tu contraseña no sea visible en texto plano.
• Eventos: Ejecuta acciones cuando el Wi‑Fi se conecta o se desconecta:

  • on_connect:

    • Detiene la configuración BLE improv.
    • Ejecuta el script control_leds (efecto LED para Wi‑Fi conectado).

  • on_disconnect:

    • Ejecuta el script control_leds (efecto LED para Wi‑Fi desconectado).

Bus I²C

I²C es una línea de comunicación que permite a tu ESP32 comunicarse con otros chips como el micrófono o el códec de audio.

i2c:
  id: internal_i2c
  sda: GPIO5
  scl: GPIO6
  scan: true
  frequency: 100kHz

• id: Un nombre para hacer referencia a este bus en otras partes.
• sda / scl: Pines usados para datos y reloj.
• scan: Comprueba los dispositivos conectados al inicio.
• frequency: Velocidad de comunicación (100kHz es el estándar).

Interruptores

Interruptores

switch:
  # Mute Sound Switch.
  - platform: template
    id: mute_sound
    name: Mute/unmute sound
    icon: "mdi:bullhorn"
    entity_category: config
    optimistic: true
    restore_mode: RESTORE_DEFAULT_ON
  # Wake Word Sound Switch.
  - platform: template
    id: wake_sound
    name: Wake sound
    icon: "mdi:bullhorn"
    entity_category: config
    optimistic: true
    restore_mode: RESTORE_DEFAULT_ON
  # Internal switch to track when a timer is ringing on the device.
  - platform: template
    id: timer_ringing
    optimistic: true
    internal: true
    restore_mode: ALWAYS_OFF
    on_turn_off:
      # Disable stop wake word
      - micro_wake_word.disable_model: stop
      - script.execute: disable_repeat
      # Stop any current annoucement (ie: stop the timer ring mid playback)
      - if:
          condition:
            media_player.is_announcing:
          then:
            media_player.stop:
              announcement: true
      # Set back ducking ratio to zero
      - mixer_speaker.apply_ducking:
          id: media_mixing_input
          decibel_reduction: 0
          duration: 1.0s
      # Refresh the LED ring
      - script.execute: control_leds
    on_turn_on:
      # Duck audio
      - mixer_speaker.apply_ducking:
          id: media_mixing_input
          decibel_reduction: 20
          duration: 0.0s
      # Enable stop wake word
      - micro_wake_word.enable_model: stop
      # Ring timer
      - script.execute: ring_timer
      # Refresh LED
      - script.execute: control_leds
      # If 15 minutes have passed and the timer is still ringing, stop it.
      - delay: 15min
      - switch.turn_off: timer_ringing
  # Defines if alarm is active
  - platform: template
    optimistic: true
    restore_mode: RESTORE_DEFAULT_OFF
    id: alarm_on
    icon: mdi:bell-badge
    name: "Alarm on"
    on_turn_on:
      - script.execute: control_leds
    on_turn_off:
      - script.execute: control_leds

Los interruptores son “botones” controlados por software en Home Assistant. Controlan funciones como sonido, temporizadores o alarmas.

Interruptor de sonido de palabra de activación: Controla el audio de la palabra de activación.

# Wake Word Sound Switch.
  - platform: template
    id: wake_sound
    name: Wake sound
    icon: "mdi:bullhorn"
    entity_category: config
    optimistic: true
    restore_mode: RESTORE_DEFAULT_ON

Interruptor interno de timbre de temporizador:

• Registra si un temporizador está activo.
• on_turn_on: Reduce el volumen de otros audios en -20dB, inicia el sonido del temporizador, actualiza el LED y se detiene automáticamente después de 15 min.
• on_turn_off: Detiene el temporizador, restaura el volumen y actualiza el LED.

# Internal switch to track when a timer is ringing on the device.
  - platform: template
    id: timer_ringing
    optimistic: true
    internal: true
    restore_mode: ALWAYS_OFF
    ...
    ...

Interruptor de alarma activada:

# Defines if alarm is active
  - platform: template
    optimistic: true
    restore_mode: RESTORE_DEFAULT_OFF
    id: alarm_on
    ...
    ...

• Registra el estado de la alarma.
• Ejecuta el script de LED cuando se enciende o apaga.

Sensores

Sensores

number:
  - platform: template
    id: led_ring_brightness
    name: "LED Ring Brightness"
    icon: mdi:brightness-6
    entity_category: config
    optimistic: true
    restore_value: true
    min_value: 0.4
    max_value: 1.0
    step: 0.05
    initial_value: 0.8
    mode: slider

sensor:
  - platform: template
    id: next_timer
    name: "Next timer"
    update_interval: never
    disabled_by_default: true
    device_class: duration
    unit_of_measurement: s
    icon: "mdi:timer"
    accuracy_decimals: 0

text_sensor:
  - platform: template
    id: next_timer_name
    name: "Next timer name"
    icon: "mdi:timer"
    disabled_by_default: true
  - platform: template
    name: "Alarm time"
    id: alarm_time
    icon: mdi:bell-ring
  - platform: template
    name: "Current device time"
    id: current_time
    icon: mdi:clock

Este bloque YAML añade controles y sensores para temporizadores, alarmas y brillo del LED. Te permite ajustar el brillo del anillo LED con un control deslizante, seguir el próximo temporizador (hora + nombre) y mostrar la hora de la alarma y la hora actual del dispositivo en Home Assistant.

Brillo del anillo LED:

number:
  - platform: template
    id: led_ring_brightness
    name: "LED Ring Brightness"
    icon: mdi:brightness-6
    ...

• Permite al usuario ajustar el brillo con un control deslizante.
• min_value / max_value definen los límites.
• restore_value mantiene el ajuste anterior después de reiniciar.

Próximo temporizador

sensor:
  - platform: template
    id: next_timer
    name: "Next timer"
    update_interval: never
    ...

• Muestra el tiempo restante para el próximo temporizador.
• Se actualiza solo cuando cambia un temporizador (ahorra recursos).

Hora de la alarma y hora del dispositivo

text_sensor:
  - platform: template
    id: next_timer_name
    name: "Next timer name"
    icon: "mdi:timer"
    ...

• Muestra la alarma actual y la hora del sistema del ESP32.

Efectos LED por intervalo

interval:
  - interval: 50ms
    id: led_animation_interval
    then:
      - lambda: |-
          if (id(volume_display_active)) {
            id(update_volume_display_effect).execute();
            return;
          }
          std::string effect = id(current_led_effect);
          if (effect == "off") {
            return;
          } else if (effect == "breathe") {
            id(update_breathe_effect).execute();
          } else if (effect == "rainbow") {
            id(update_rainbow_effect).execute();
          } else if (effect == "comet_cw") {
            id(update_comet_cw_effect).execute();
          } else if (effect == "comet_ccw") {
            id(update_comet_ccw_effect).execute();
          } else if (effect == "twinkle") {
            id(update_twinkle_effect).execute();
          } else if (effect == "timer_tick") {
            id(update_timer_tick_effect).execute();
          } else if (effect == "led_beam") {
            id(update_led_beam_effect).execute();
          }

• Los intervalos ejecutan código repetidamente en segundo plano.
• 50ms: Ejecuta código 20 veces por segundo.
• Controla las animaciones LED según el estado del sistema o el efecto seleccionado.

Control de LED

Control de LED

 script:
  # =========================================================================
  # == Centralized script to control all LED effects ==
  # =========================================================================
  - id: led_set_effect
    mode: restart
    parameters:
      effect: std::string
      r: float
      g: float
      b: float
      speed: float
    then:
      - lambda: |-
          // Update global variables with the new parameters
          id(led_ring_color_r) = r;
          id(led_ring_color_g) = g;
          id(led_ring_color_b) = b;
          id(led_ring_speed) = speed;
          id(current_led_effect) = effect;

          // Handle the two types of effects: Off and Animated
          if (effect == "off") {
            uint32_t colors[12] = {0};
            id(respeaker).set_led_ring(colors);
          } else {
            id(last_led_update_time) = millis(); // Reset timer for smooth animation start
          }

  # Individual update scripts for each animated effect
  - id: update_breathe_effect
    then:
      - lambda: |-
          static float phase = 0.0f;
          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          phase += dt * id(led_ring_speed);
          while (phase >= 1.0f) phase -= 1.0f;

          float master_brightness = id(led_ring_brightness).state;
          float breath_brightness = 0.5f * (1.0f + sinf(phase * 2.0f * M_PI)) * master_brightness;

          uint8_t r = (uint8_t)(id(led_ring_color_r) * 255.0f * breath_brightness);
          uint8_t g = (uint8_t)(id(led_ring_color_g) * 255.0f * breath_brightness);
          uint8_t b = (uint8_t)(id(led_ring_color_b) * 255.0f * breath_brightness);
          uint32_t current_color = (r << 16) | (g << 8) | b;

          uint32_t colors[12];
          for (int i = 0; i < 12; i++) colors[i] = current_color;
          id(respeaker).set_led_ring(colors);

  - id: update_rainbow_effect
    then:
      - lambda: |-
          static float hue_offset = 0.0f;
          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          hue_offset += dt * id(led_ring_speed);
          if (hue_offset >= 1.0f) hue_offset -= 1.0f;

          constexpr int NUM_LEDS = 12;
          constexpr float HUE_STEP = 1.0f / NUM_LEDS;
          uint32_t colors[NUM_LEDS];
          float brightness = id(led_ring_brightness).state;

          float current_hue = hue_offset;
          for (int i = 0; i < NUM_LEDS; i++) {
            float r, g, b;
            if (current_hue >= 1.0f) current_hue -= 1.0f;
            hsv_to_rgb((int)(current_hue * 360.0f), 1.0f, brightness, r, g, b);
            colors[i] = ((uint8_t)(r * 255.0f) << 16) | ((uint8_t)(g * 255.0f) << 8) | ((uint8_t)(b * 255.0f));
            current_hue += HUE_STEP;
          }
          id(respeaker).set_led_ring(colors);

  - id: update_comet_cw_effect
    then:
      - lambda: |-
          static float comet_pos = 0.0f;
          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          constexpr int NUM_LEDS = 12;
          constexpr int BASE_TAIL = 3;

          float leds_per_sec = id(led_ring_speed) * NUM_LEDS;
          comet_pos += dt * leds_per_sec;
          while (comet_pos >= NUM_LEDS) comet_pos -= NUM_LEDS;

          int head_index = (int)comet_pos;
          int tail_length = BASE_TAIL + (int)(id(led_ring_speed));
          if (tail_length > NUM_LEDS - 1) tail_length = NUM_LEDS - 1;

          uint32_t colors[NUM_LEDS] = {0};
          float brightness = id(led_ring_brightness).state;

          uint8_t head_r = (uint8_t)(id(led_ring_color_r) * 255.0f * brightness);
          uint8_t head_g = (uint8_t)(id(led_ring_color_g) * 255.0f * brightness);
          uint8_t head_b = (uint8_t)(id(led_ring_color_b) * 255.0f * brightness);

          colors[head_index % NUM_LEDS] = (head_r << 16) | (head_g << 8) | head_b;

          for (int i = 1; i <= tail_length; i++) {
            float tail_factor = (float)i / (tail_length + 1);
            float tail_brightness = (1.0f - tail_factor) * brightness;
            uint8_t r = (uint8_t)(id(led_ring_color_r) * 255.0f * tail_brightness);
            uint8_t g = (uint8_t)(id(led_ring_color_g) * 255.0f * tail_brightness);
            uint8_t b = (uint8_t)(id(led_ring_color_b) * 255.0f * tail_brightness);
            int tail_index = (head_index - i + NUM_LEDS) % NUM_LEDS;
            colors[tail_index] = (r << 16) | (g << 8) | b;
          }
          id(respeaker).set_led_ring(colors);

  - id: update_comet_ccw_effect
    then:
      - lambda: |-
          static float comet_pos = 0.0f;
          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          constexpr int NUM_LEDS = 12;
          constexpr int BASE_TAIL = 3;

          float leds_per_sec = id(led_ring_speed) * NUM_LEDS;
          comet_pos -= dt * leds_per_sec;
          while (comet_pos < 0.0f) comet_pos += NUM_LEDS;

          int head_index = (int)comet_pos;
          int tail_length = BASE_TAIL + (int)(id(led_ring_speed));
          if (tail_length > NUM_LEDS - 1) tail_length = NUM_LEDS - 1;

          uint32_t colors[NUM_LEDS] = {0};
          float brightness = id(led_ring_brightness).state;

          uint8_t head_r = (uint8_t)(id(led_ring_color_r) * 255.0f * brightness);
          uint8_t head_g = (uint8_t)(id(led_ring_color_g) * 255.0f * brightness);
          uint8_t head_b = (uint8_t)(id(led_ring_color_b) * 255.0f * brightness);

          colors[head_index % NUM_LEDS] = (head_r << 16) | (head_g << 8) | head_b;

          for (int i = 1; i <= tail_length; i++) {
            float tail_factor = (float)i / (tail_length + 1);
            float tail_brightness = (1.0f - tail_factor) * brightness;
            uint8_t r = (uint8_t)(id(led_ring_color_r) * 255.0f * tail_brightness);
            uint8_t g = (uint8_t)(id(led_ring_color_g) * 255.0f * tail_brightness);
            uint8_t b = (uint8_t)(id(led_ring_color_b) * 255.0f * tail_brightness);
            int tail_index = (head_index + i) % NUM_LEDS;
            colors[tail_index] = (r << 16) | (g << 8) | b;
          }
          id(respeaker).set_led_ring(colors);

  - id: update_twinkle_effect
    then:
      - lambda: |-
          constexpr int NUM_LEDS = 12;
          static float led_brightness[NUM_LEDS] = {0.0f};
          static float led_fade_speed[NUM_LEDS] = {0.0f};

          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          // Update existing twinkles
          for (int i = 0; i < NUM_LEDS; i++) {
            if (led_fade_speed[i] != 0.0f) {
              led_brightness[i] += led_fade_speed[i] * dt;
              if (led_fade_speed[i] > 0.0f && led_brightness[i] >= 1.0f) {
                led_brightness[i] = 1.0f;
                led_fade_speed[i] *= -1.0f;
              } else if (led_fade_speed[i] < 0.0f && led_brightness[i] <= 0.0f) {
                led_brightness[i] = 0.0f;
                led_fade_speed[i] = 0.0f;
              }
            }
          }

          // Start new twinkles
          float twinkle_chance = dt * id(led_ring_speed);
          if (random_float() < twinkle_chance) {
            int led_to_start = (int)(random_float() * NUM_LEDS);
            if (led_fade_speed[led_to_start] == 0.0f) {
              led_brightness[led_to_start] = 0.0f;
              float min_speed = 1.5f, max_speed = 3.0f;
              led_fade_speed[led_to_start] = min_speed + (random_float() * (max_speed - min_speed));
            }
          }

          // Render colors
          uint32_t colors[NUM_LEDS];
          float master_brightness = id(led_ring_brightness).state;
          uint8_t base_r = (uint8_t)(id(led_ring_color_r) * 255.0f);
          uint8_t base_g = (uint8_t)(id(led_ring_color_g) * 255.0f);
          uint8_t base_b = (uint8_t)(id(led_ring_color_b) * 255.0f);

          for (int i = 0; i < NUM_LEDS; i++) {
            float current_led_brightness = led_brightness[i] * master_brightness;
            uint8_t r = (uint8_t)(base_r * current_led_brightness);
            uint8_t g = (uint8_t)(base_g * current_led_brightness);
            uint8_t b = (uint8_t)(base_b * current_led_brightness);
            colors[i] = (r << 16) | (g << 8) | b;
          }
          id(respeaker).set_led_ring(colors);

  - id: update_timer_tick_effect
    then:
      - lambda: |-
          constexpr int NUM_LEDS = 12;
          static int tick_index = 0;

          uint32_t now = millis();
          // Only update tick position every 100ms to reduce I2C traffic
          static uint32_t last_tick_update = 0;
          if (now - last_tick_update >= 100) {
            tick_index = (tick_index - 1 + NUM_LEDS) % NUM_LEDS;
            last_tick_update = now;
          }

          uint32_t colors[NUM_LEDS] = {0};
          uint32_t seconds_left = id(first_active_timer).seconds_left;
          uint32_t total_seconds = id(first_active_timer).total_seconds;

          float timer_ratio = (float)NUM_LEDS * seconds_left / std::max(total_seconds, (uint32_t)1);

          float master_brightness = id(led_ring_brightness).state;
          uint8_t base_r = (uint8_t)(id(led_ring_color_r) * 255.0f);
          uint8_t base_g = (uint8_t)(id(led_ring_color_g) * 255.0f);
          uint8_t base_b = (uint8_t)(id(led_ring_color_b) * 255.0f);

          for (int i = 0; i < NUM_LEDS; i++) {
            float bar_brightness = clamp(timer_ratio - i, 0.0f, 1.0f);
            if (bar_brightness > 0.0f) {
              float tick_dip = (i == tick_index) ? 0.9f : 1.0f;
              float final_brightness = bar_brightness * tick_dip * master_brightness;
              uint8_t r = (uint8_t)(base_r * final_brightness);
              uint8_t g = (uint8_t)(base_g * final_brightness);
              uint8_t b = (uint8_t)(base_b * final_brightness);
              colors[i] = (r << 16) | (g << 8) | b;
            }
          }
          id(respeaker).set_led_ring(colors);

  - id: update_volume_display_effect
    then:
      - lambda: |-
          constexpr int NUM_LEDS = 12;
          uint32_t colors[NUM_LEDS] = {0};

          if (id(external_media_player).is_ready()) {
            bool is_muted = id(external_media_player).is_muted();
            float volume = id(external_media_player).volume;

            if (is_muted || volume == 0.0f) {
              uint32_t mute_color = (255 << 16); // Red
              colors[0] = mute_color;
              colors[6] = mute_color;
            } else {
              float num_leds_on = volume * NUM_LEDS;
              float master_brightness = id(led_ring_brightness).state;
              uint8_t base_r = (uint8_t)(id(led_ring_color_r) * 255.0f);
              uint8_t base_g = (uint8_t)(id(led_ring_color_g) * 255.0f);
              uint8_t base_b = (uint8_t)(id(led_ring_color_b) * 255.0f);

              for (int i = 0; i < NUM_LEDS; i++) {
                float brightness = clamp(num_leds_on - i, 0.0f, 1.0f);
                if (brightness > 0.0f) {
                  uint8_t r = (uint8_t)(base_r * brightness * master_brightness);
                  uint8_t g = (uint8_t)(base_g * brightness * master_brightness);
                  uint8_t b = (uint8_t)(base_b * brightness * master_brightness);
                  colors[i] = (r << 16) | (g << 8) | b;
                }
              }
            }
          }
          id(respeaker).set_led_ring(colors);

  - id: update_led_beam_effect
    then:
      - lambda: |-
          constexpr int NUM_LEDS = 12;
          constexpr int FADE_LEDS = 3;
          constexpr float TRANSITION_DURATION = 0.5f; // Duration of the smooth transition
          uint32_t colors[NUM_LEDS] = {0};

          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          if (id(beam_direction).has_state()) {
            // CORRECTING THE OFFSET: add 5 from the sensor reading
            float target_pos = ((int)id(beam_direction).state + 5) % NUM_LEDS;
            float current_pos = id(animated_beam_position);

            // Calculate the shortest path around the circle
            float diff = target_pos - current_pos;
            if (diff > NUM_LEDS / 2.0f) {
              diff -= NUM_LEDS;
            } else if (diff < -NUM_LEDS / 2.0f) {
              diff += NUM_LEDS;
            }

            // Move current position towards target
            if (abs(diff) > 0.01f) {
              float move_speed = diff / TRANSITION_DURATION;
              current_pos += move_speed * dt;
            } else {
              current_pos = target_pos;
            }

            // Handle wrap-around for the animated position
            if (current_pos >= NUM_LEDS) current_pos -= NUM_LEDS;
            if (current_pos < 0.0f) current_pos += NUM_LEDS;

            id(animated_beam_position) = current_pos;

            // Render the smoothed beam
            float master_brightness = id(led_ring_brightness).state;
            uint8_t base_r = (uint8_t)(id(led_ring_color_r) * 255.0f);
            uint8_t base_g = (uint8_t)(id(led_ring_color_g) * 255.0f);
            uint8_t base_b = (uint8_t)(id(led_ring_color_b) * 255.0f);

            for (int i = 0; i < NUM_LEDS; i++) {
              // Calculate circular distance from current LED to the animated position
              float dist = abs(i - current_pos);
              if (dist > NUM_LEDS / 2.0f) {
                dist = NUM_LEDS - dist;
              }

              // Calculate brightness based on distance (linear falloff)
              float brightness_factor = 1.0f - (dist / (FADE_LEDS + 1.0f));
              brightness_factor = std::max(0.0f, brightness_factor);

              if (brightness_factor > 0.0f) {
                float final_brightness = brightness_factor * master_brightness;
                uint8_t r = (uint8_t)(base_r * final_brightness);
                uint8_t g = (uint8_t)(base_g * final_brightness);
                uint8_t b = (uint8_t)(base_b * final_brightness);
                colors[i] = (r << 16) | (g << 8) | b;
              }
            }
          }
          id(respeaker).set_led_ring(colors);

  # Master script controlling the LEDs, based on different conditions : initialization in progress, wifi and api connected and voice assistant phase.
  # For the sake of simplicity and re-usability, the script calls child scripts defined below.
  # This script will be called every time one of these conditions is changing.
  - id: control_leds
    mode: single  # Prevent multiple simultaneous executions
    then:
      - lambda: |
          // Cache expensive component checks
          static bool last_respeaker_failed = false;
          static bool last_wifi_connected = false;
          static bool last_api_connected = false;
          static int last_voice_phase = -1;
          static bool last_timer_ringing = false;
          static bool last_timer_active = false;
          static bool last_improv_ble = false;
          static bool last_init_progress = false;

          bool respeaker_failed = id(respeaker).is_failed();
          bool wifi_connected = id(wifi_id).is_connected();
          bool api_connected = id(api_id).is_connected();
          int voice_phase = id(voice_assistant_phase);
          bool new_timer_ringing = id(timer_ringing).state;
          bool improv_ble = id(improv_ble_in_progress);
          bool init_progress = id(init_in_progress);

          // Only update if something actually changed
          bool needs_update = (
            respeaker_failed != last_respeaker_failed ||
            wifi_connected != last_wifi_connected ||
            api_connected != last_api_connected ||
            voice_phase != last_voice_phase ||
            new_timer_ringing != last_timer_ringing ||
            improv_ble != last_improv_ble ||
            init_progress != last_init_progress
          );

          if (!needs_update) return;

          // Update cache
          last_respeaker_failed = respeaker_failed;
          last_wifi_connected = wifi_connected;
          last_api_connected = api_connected;
          last_voice_phase = voice_phase;
          last_timer_ringing = new_timer_ringing;
          last_improv_ble = improv_ble;
          last_init_progress = init_progress;

          if (respeaker_failed) {
            id(control_leds_respeaker_startup_failed).execute();
            return;
          }

          // Only check timers if we need to
          id(check_if_timers_active).execute();
          if (id(is_timer_active)){
            id(fetch_first_active_timer).execute();
          }

          // Continue with existing logic...
          if (improv_ble) {
            id(control_leds_improv_ble_state).execute();
          } else if (init_progress) {
            id(control_leds_init_state).execute();
          } else if (!wifi_connected || !api_connected){
            id(control_leds_no_ha_connection_state).execute();
          } else if (new_timer_ringing) {
            id(control_leds_timer_ringing).execute();
          } else if (voice_phase == ${voice_assist_waiting_for_command_phase_id}) {
            id(control_leds_voice_assistant_waiting_for_command_phase).execute();
          } else if (voice_phase == ${voice_assist_listening_for_command_phase_id}) {
            id(control_leds_voice_assistant_listening_for_command_phase).execute();
          } else if (voice_phase == ${voice_assist_thinking_phase_id}) {
            id(control_leds_voice_assistant_thinking_phase).execute();
          } else if (voice_phase == ${voice_assist_replying_phase_id}) {
            id(control_leds_voice_assistant_replying_phase).execute();
          } else if (voice_phase == ${voice_assist_error_phase_id}) {
            id(control_leds_voice_assistant_error_phase).execute();
          } else if (voice_phase == ${voice_assist_not_ready_phase_id}) {
            id(control_leds_voice_assistant_not_ready_phase).execute();
          } else if (id(is_timer_active)) {
            id(control_leds_timer_ticking).execute();
          } else if (voice_phase == ${voice_assist_idle_phase_id}) {
            id(control_leds_voice_assistant_idle_phase).execute();
          }

  # Script executed if respeaker startup failed
  - id: control_leds_respeaker_startup_failed
    then:
      - script.execute:
          id: led_set_effect
          effect: "breathe"
          r: 0.7
          g: 0.0
          b: 0.0
          speed: 0.5

  # Script executed during Improv BLE
  - id: control_leds_improv_ble_state
    then:
      - script.execute:
          id: led_set_effect
          effect: "twinkle"
          r: 1.0
          g: 0.89
          b: 0.71
          speed: 10.0

  # Script executed during initialization
  - id: control_leds_init_state
    then:
      - if:
          condition:
            wifi.connected:
          then:
            - script.execute:
                id: led_set_effect
                effect: "twinkle"
                r: 0.09
                g: 0.73
                b: 0.95
                speed: 20.0
          else:
            - script.execute:
                id: led_set_effect
                effect: "twinkle"
                r: 0.09
                g: 0.73
                b: 0.95
                speed: 4.0

  # Script executed when the device has no connection to Home Assistant
  - id: control_leds_no_ha_connection_state
    then:
      - script.execute:
          id: led_set_effect
          effect: "twinkle"
          r: 1.0
          g: 0.0
          b: 0.0
          speed: 10.0

  # Script executed when the voice assistant is waiting for a command (After the wake word)
  - id: control_leds_voice_assistant_waiting_for_command_phase
    then:
      - lambda: |
          id(animated_beam_position) = id(beam_direction).state;
      - script.execute:
          id: led_set_effect
          effect: "led_beam"
          r: 0.5
          g: 0.0
          b: 0.5
          speed: 0.0

  # Script executed when the voice assistant is listening to a command
  - id: control_leds_voice_assistant_listening_for_command_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "led_beam"
          r: 0.8
          g: 0.0
          b: 0.8
          speed: 0.0

  # Script executed when the voice assistant is thinking to a command
  - id: control_leds_voice_assistant_thinking_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "breathe"
          r: 0.6
          g: 0.0
          b: 0.6
          speed: 1.0

  # Script executed when the voice assistant is replying to a command
  - id: control_leds_voice_assistant_replying_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "comet_ccw"
          r: 0.6
          g: 0.0
          b: 0.6
          speed: 1.0

  # Script executed when the voice assistant is in error
  - id: control_leds_voice_assistant_error_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "breathe"
          r: 1.0
          g: 0.0
          b: 0.0
          speed: 3.0

  # Script executed when the voice assistant is not ready
  - id: control_leds_voice_assistant_not_ready_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "twinkle"
          r: 1.0
          g: 0.0
          b: 0.0
          speed: 5.0

  # Script executed when the volume is changed
  - id: control_leds_volume_changed
    mode: restart
    then:
      - lambda: |-
          id(volume_display_active) = true;
      - delay: 2s
      - lambda: |-
          id(volume_display_active) = false;

  # Script executed when the timer is ringing, to control the LEDs
  - id: control_leds_timer_ringing
    then:
      - script.execute:
          id: led_set_effect
          effect: "breathe"
          r: 0.6
          g: 0.0
          b: 0.6
          speed: 5.0

  # Script executed when the timer is ticking, to control the LEDs
  - id: control_leds_timer_ticking
    then:
      - script.execute:
          id: led_set_effect
          effect: "timer_tick"
          r: 0.6
          g: 0.0
          b: 0.6
          speed: 1.0

  # Script executed when the voice assistant is idle (waiting for a wake word)
  - id: control_leds_voice_assistant_idle_phase
    then:
      - script.execute:
          id: led_set_effect
          effect: "off"
          r: 0.0
          g: 0.0
          b: 0.0
          speed: 0.0

  # Script executed when the timer is ringing, to playback sounds.
  - id: ring_timer
    then:
      - script.execute: enable_repeat_one
      - script.execute:
          id: play_sound
          priority: true
          sound_file: !lambda return id(timer_finished_sound);

  # Script executed when the timer is ringing, to repeat the timer finished sound.
  - id: enable_repeat_one
    then:
      # Turn on the repeat mode and pause for 500 ms between playlist items/repeats
      - lambda: |-
            id(external_media_player)
              ->make_call()
              .set_command(media_player::MediaPlayerCommand::MEDIA_PLAYER_COMMAND_REPEAT_ONE)
              .set_announcement(true)
              .perform();
            id(external_media_player)->set_playlist_delay_ms(speaker::AudioPipelineType::ANNOUNCEMENT, 500);

  # Script execute when the timer is done ringing, to disable repeat mode.
  - id: disable_repeat
    then:
      # Turn off the repeat mode and pause for 0 ms between playlist items/repeats
      - lambda: |-
            id(external_media_player)
              ->make_call()
              .set_command(media_player::MediaPlayerCommand::MEDIA_PLAYER_COMMAND_REPEAT_OFF)
              .set_announcement(true)
              .perform();
            id(external_media_player)->set_playlist_delay_ms(speaker::AudioPipelineType::ANNOUNCEMENT, 0);

  # Script executed when we want to play sounds on the device.
  - id: play_sound
    parameters:
      priority: bool
      sound_file: "audio::AudioFile*"
    then:
      - lambda: |-
          if (priority) {
            id(external_media_player)
              ->make_call()
              .set_command(media_player::MediaPlayerCommand::MEDIA_PLAYER_COMMAND_STOP)
              .set_announcement(true)
              .perform();
          }
          if ( (id(external_media_player).state != media_player::MediaPlayerState::MEDIA_PLAYER_STATE_ANNOUNCING ) || priority) {
            id(external_media_player)
              ->play_file(sound_file, true, false);
          }

  # Script used to fetch the first active timer (Stored in global first_active_timer)
  - id: fetch_first_active_timer
    mode: single
    then:
      - lambda: |
          static uint32_t last_fetch_time = 0;
          uint32_t now = millis();

          // Only fetch every 500ms to reduce overhead
          if (now - last_fetch_time < 500) return;
          last_fetch_time = now;

          const auto timers = id(va).get_timers();
          if (timers.empty()) return;

          auto output_timer = timers.begin()->second;
          for (auto &iterable_timer : timers) {
            if (iterable_timer.second.is_active && 
                iterable_timer.second.seconds_left <= output_timer.seconds_left) {
              output_timer = iterable_timer.second;
            }
          }
          id(first_active_timer) = output_timer;

  # Script used to check if a timer is active (Stored in global is_timer_active)
  - id: check_if_timers_active
    then:
      - lambda: |
          const auto timers = id(va).get_timers();
          bool output = false;
          if (timers.size() > 0) {
            for (auto &iterable_timer : timers) {
              if(iterable_timer.second.is_active) {
                output = true;
              }
            }
          }
          id(is_timer_active) = output;

  # Script used activate the stop word if the TTS step is long.
  # Why is this wrapped on a script?
  #   Becasue we want to stop the sequence if the TTS step is faster than that.
  #   This allows us to prevent having the deactivation of the stop word before its own activation.
  - id: activate_stop_word_once
    then:
      - delay: 1s
      # Enable stop wake word
      - if:
          condition:
            switch.is_off: timer_ringing
          then:
            - micro_wake_word.enable_model: stop
            - wait_until:
                not:
                  media_player.is_announcing:
            - if:
                condition:
                  switch.is_off: timer_ringing
                then:
                  - micro_wake_word.disable_model: stop

  - id: check_alarm
    then:
      - lambda: |-
          id(publish_current_time).execute();
          // Check alarm
          if (id(alarm_on).state && id(alarm_time).has_state()) {
            // Get the stored alarm time from the sensor
            auto set_alarm_time = id(alarm_time).state;
            if (set_alarm_time.length() == 5 &&
              isdigit(set_alarm_time[0]) && isdigit(set_alarm_time[1]) &&
              isdigit(set_alarm_time[3]) && isdigit(set_alarm_time[4])) {
              auto alarm_hour = std::stoi(set_alarm_time.substr(0, 2));
              auto alarm_minute = std::stoi(set_alarm_time.substr(3, 2));

              // Trigger action if current time matches alarm time
              auto time_now = id(homeassistant_time).now();
              if (time_now.hour == alarm_hour && time_now.minute == alarm_minute) {
                auto action = id(alarm_action).state;
                if (action == "Play sound") {
                  id(timer_ringing).turn_on();
                } else if (action == "Send event") {
                  id(send_alarm_event).execute();
                } else if (action == "Sound and event") {
                  id(timer_ringing).turn_on();
                  id(send_alarm_event).execute();
                } 
              }
            } else {
              ESP_LOGW("alarm", "Incorrect alarm time setting");
            }
          }
  - id: send_alarm_event
    then:
      - homeassistant.event:
          event: esphome.alarm_ringing
  - id: send_tts_uri_event
    parameters:
      tts_uri: string
    then:
      - homeassistant.event:
          event: esphome.tts_uri
          data:
            uri: !lambda return tts_uri;
  - id: send_stt_text_event
    parameters:
      stt_text: string
    then:
      - homeassistant.event:
          event: esphome.stt_text
          data:
            text: !lambda return stt_text;
  - id: publish_current_time
    mode: single
    then:
      - lambda: |-
          static std::string last_time_string = "";
          auto time_now = id(homeassistant_time).now();
          std::string current_time_string = time_now.strftime("%H:%M");

          // Only publish if time actually changed
          if (current_time_string != last_time_string) {
            id(current_time).publish_state(current_time_string);
            last_time_string = current_time_string;
          }

Controlador central (led_set_effect)

script:
  # =========================================================================
  # == Centralized script to control all LED effects ==
  # =========================================================================
  - id: led_set_effect
    mode: restart
    parameters:
      effect: std::string
      r: float
      g: float
      b: float
      speed: float
      ....

• Gestiona todos los efectos LED en un solo lugar.
• Puede configurar dinámicamente el tipo de efecto, el color (R/G/B) y la velocidad.
• Usa scripts de actualización para un movimiento fluido.
• El efecto de apagado apaga los LED inmediatamente.

Scripts individuales

• Cada animación (respiración, arcoíris, cometa, centelleo, tic de temporizador, visualización de volumen, haz LED) tiene su propio script.
• Hace que el sistema sea modular y fácil de mantener.
• Se activa periódicamente mediante led_animation_interval o por el controlador central.

Estado del dispositivo	Efecto LED
Fallo de inicio	Respiración roja
Modo Improv BLE	Centelleo cálido
Inicialización	Centelleo azul
Sin conexión HA	Centelleo rojo
Asistente de voz en espera	Haz púrpura
Asistente de voz escuchando	Haz púrpura brillante
Asistente de voz pensando	Respiración púrpura
Asistente de voz respondiendo	Cometa púrpura
Error del asistente de voz	Respiración roja
Asistente de voz inactivo	LED apagados
Temporizador sonando	Respiración púrpura rápida
Cambio de volumen	Visualización temporal

Cómo funciona el control de LED (visión general del flujo)

1. Activación de un efecto

   • Cuando ocurre algo (por ejemplo, fallo de inicio, asistente de voz escuchando, temporizador sonando), se ejecuta un script.

   • Ese script llama al controlador central de LED (led_set_effect) y le indica:

     • qué efecto ejecutar (por ejemplo, respiración, arcoíris, cometa)
     • qué color (valores R, G, B)
     • qué tan rápido (velocidad).

   Si el inicio falla → se llama a led_set_effect con effect = breathe, color = rojo.

2. Controlador central (bucle de intervalo)

   • Cada 50 ms (20 veces por segundo), el bucle led_animation_interval comprueba cuál es el efecto actual.

   • En función de ese nombre de efecto, reenvía el control al script de actualización correspondiente.

     • Si effect = breathe → ejecuta update_breathe_effect.
     • Si effect = rainbow → ejecuta update_rainbow_effect.
     • Y así sucesivamente para centelleo, cometa, tic de temporizador, haz LED, etc.

Este bucle actúa como un despachador: decide qué script de animación ejecutar a continuación.

interval:
  - interval: 50ms
    id: led_animation_interval
    then:
      - lambda: |-
          if (id(volume_display_active)) {
            id(update_volume_display_effect).execute();
            return;
          }
          std::string effect = id(current_led_effect);
          if (effect == "off") {
            return;
          } else if (effect == "breathe") {
            id(update_breathe_effect).execute();
          } else if (effect == "rainbow") {
            id(update_rainbow_effect).execute();
          } else if (effect == "comet_cw") {
            id(update_comet_cw_effect).execute();
          } else if (effect == "comet_ccw") {
            id(update_comet_ccw_effect).execute();
          } else if (effect == "twinkle") {
            id(update_twinkle_effect).execute();
          } else if (effect == "timer_tick") {
            id(update_timer_tick_effect).execute();
          } else if (effect == "led_beam") {
            id(update_led_beam_effect).execute();
          }

3. Script de actualización de efecto

   • Cada efecto tiene su propio script que calcula los colores de los LED fotograma a fotograma.

   • Ejemplo: efecto de respiración

     • Usa una onda sinusoidal para subir y bajar el brillo suavemente.
     • Multiplica el brillo por los ajustes globales del anillo LED (velocidad, control deslizante de brillo, color R/G/B).
     • Construye una matriz de colores para los 12 LED.
     • Envía los colores al anillo LED Respeaker.

Ejemplo:

 # Individual update scripts for each animated effect
  - id: update_breathe_effect
    then:
      - lambda: |-
          static float phase = 0.0f;
          uint32_t now = millis();
          float dt = (now - id(last_led_update_time)) / 1000.0f;
          id(last_led_update_time) = now;

          phase += dt * id(led_ring_speed);
          while (phase >= 1.0f) phase -= 1.0f;

          float master_brightness = id(led_ring_brightness).state;
          float breath_brightness = 0.5f * (1.0f + sinf(phase * 2.0f * M_PI)) * master_brightness;

          uint8_t r = (uint8_t)(id(led_ring_color_r) * 255.0f * breath_brightness);
          uint8_t g = (uint8_t)(id(led_ring_color_g) * 255.0f * breath_brightness);
          uint8_t b = (uint8_t)(id(led_ring_color_b) * 255.0f * breath_brightness);
          uint32_t current_color = (r << 16) | (g << 8) | b;

          uint32_t colors[12];
          for (int i = 0; i < 12; i++) colors[i] = current_color;
          id(respeaker).set_led_ring(colors);

Esto hace que las animaciones sean fluidas, dinámicas y personalizables.

Configuración de audio

Entrada / salida I²S

I²S (Inter-IC Sound) es una conexión digital que permite al ESP32 enviar y recibir audio de alta calidad a chips como códecs, micrófonos y altavoces.

i2s_audio:
  - id: i2s_output
    i2s_lrclk_pin: 
      number: GPIO7
      allow_other_uses: true
    i2s_bclk_pin:  
      number: GPIO8
      allow_other_uses: true
    # i2s_mclk_pin:  
    #   number: GPIO9
    #   allow_other_uses: true

  - id: i2s_input
    i2s_lrclk_pin:  
      number: GPIO7
      allow_other_uses: true
    i2s_bclk_pin:  
      number: GPIO8
      allow_other_uses: true
    # i2s_mclk_pin:  
    #   number: GPIO9
    #   allow_other_uses: true

Micrófono

• Captura audio desde la matriz de micrófonos I²S / códec.
• GPIO43: Pin por donde entra el dato de audio del micrófono.
• Frecuencia de muestreo 48 kHz, 32 bits: Grabación de alta calidad (estéreo, 2 canales).
• adc_type: external: Usa el códec externo (no el ADC integrado del ESP32).
• i2s_mode: secondary: El ESP32 sigue el reloj del códec (modo esclavo).

microphone:
  - platform: i2s_audio
    id: i2s_mics
    i2s_din_pin: GPIO43
    adc_type: external
    pdm: false
    sample_rate: 48000
    bits_per_sample: 32bit
    i2s_mode: secondary
    i2s_audio_id: i2s_input
    channel: stereo

Altavoz

• Envía audio al altavoz a través del códec (DAC AIC3104).
• GPIO44: Pin por donde sale el audio digital.
• 48 kHz, 32 bits estéreo: Reproducción de alta calidad.
• buffer_duration 100 ms: Mantiene el audio fluido (evita cortes).
• timeout: never: Mantiene el canal del altavoz activo (no se apaga).

speaker:
  # Hardware speaker output
  - platform: i2s_audio
    id: i2s_audio_speaker
    sample_rate: 48000
    i2s_mode: secondary
    i2s_dout_pin: GPIO44
    bits_per_sample: 32bit
    i2s_audio_id: i2s_output
    dac_type: external
    channel: stereo
    timeout: never
    buffer_duration: 100ms
    audio_dac: aic3104_dac

Mezclador

• Combina múltiples flujos de audio (medios + avisos) en una sola salida.

  # Virtual speakers to combine the announcement and media streams together into one output
  - platform: mixer
    id: mixing_speaker
    output_speaker: i2s_audio_speaker
    num_channels: 2
    source_speakers:
      - id: announcement_mixing_input
        timeout: never
      - id: media_mixing_input
        timeout: never

Resamplers

• Garantizan que todas las fuentes de audio coincidan en frecuencia de muestreo y profundidad de bits.

  # Vritual speakers to resample each pipelines' audio, if necessary, as the mixer speaker requires the same sample rate
  - platform: resampler
    id: announcement_resampling_speaker
    output_speaker: announcement_mixing_input
    sample_rate: 48000
    bits_per_sample: 16
  - platform: resampler
    id: media_resampling_speaker
    output_speaker: media_mixing_input
    sample_rate: 48000
    bits_per_sample: 16

Reproductor multimedia

• Controla volumen, silencio, reproducción y ducking (reduce el volumen de los medios durante los avisos).
• Sonidos precargados para eventos (temporizador, palabra de activación, errores).

media_player:
  - platform: speaker
    id: external_media_player
    name: None
    internal: False
    volume_increment: 0.05
    volume_min: 0.0
    volume_max: 1.0
    ...
    ...

Integración Respeaker XVF3800

• Dirección i2c: 0x2C
• ID: respeaker
• Interruptor de silencio del micrófono: Se actualiza cada 1 segundo, reproduce un sonido al cambiar.
• Informe de versión DFU: Informa el firmware cada 120 s.
• Sensor de dirección de haz: Rastrea el haz de voz (solo interno).
• Gestión de firmware: Flashea automáticamente el firmware XVF3800 si es necesario.

respeaker_xvf3800:
  id: respeaker
  address: 0x2C
  mute_switch:
    id: mic_mute_switch
    name: "Microphone Mute"
    update_interval: 1s
    on_turn_on:
    ...
    ...

Referencias / Repositorios

external_components:
  - source:
      type: git
      url: https://github.com/formatBCE/esphome
      ref: respeaker_microphone
    components:
      - i2s_audio
    refresh: 0s
  - source:
      type: git
      url: https://github.com/formatBCE/Respeaker-XVF3800-ESPHome-integration
      ref: main
    components: 
      - respeaker_xvf3800
      - aic3104
    refresh: 0s

• formatBCE/esphome: Componente de audio I²S personalizado.
• formatBCE/Respeaker-XVF3800-ESPHome-integration:
• Controlador XVF3800
• Controlador de códec de audio AIC3104
• refresh: 0s: Siempre obtiene el código más reciente de los repositorios.

Micro Wake Word

micro_wake_word:
  id: mww
  microphone:
    microphone: i2s_mics
    channels: 1
    # gain_factor: 4
  stop_after_detection: false
  ....
  ....

Detecta tus palabras de activación (como “Okay Nabu”) y inicia el asistente de voz.

• id: mww → Nombre de referencia.
• microphone: i2s_mics, 1 canal.
• stop_after_detection: false → Sigue escuchando continuamente.
• okay_nabu, kenobi, hey_jarvis, hey_mycroft, stop (comando de parada interno; puedes añadir los tuyos propios).
• vad probability_cutoff: 0.05 → Sensibilidad del habla.

Al detectar (si el micrófono no está silenciado)

• Detiene temporizadores, anuncios o el asistente de voz si está activo.
• Reproduce el sonido de activación (si está habilitado).
• Inicia el asistente de voz para comandos.

Asistente de voz

voice_assistant:
  id: va
  microphone:
    microphone: i2s_mics
    channels: 0
  media_player: external_media_player
  micro_wake_word: mww
  use_wake_word: false
  noise_suppression_level: 0
  ....
  ....

Controla el comportamiento y las interacciones de tu asistente de voz (VA).

• Micrófono y medios: Usa i2s_mics y un reproductor multimedia externo.
• Palabra de activación: Vinculado a mww pero la palabra de activación no es obligatoria (use_wake_word: false).
• Ajustes de audio: Supresión de ruido desactivada, ganancia automática 0 dB, volumen normal.

Eventos / Qué sucede

• on_client_connected: Inicia el VA, actualiza los LED, reactiva el micrófono si es necesario.
• on_client_disconnected: Detiene el VA, restablece los LED.
• on_error: Muestra el estado de error en los LED; reproduce un sonido local si falla la autenticación en la nube.
• on_start: Reduce el volumen de los medios (ducking) cuando se inicia el VA.
• on_listening / on_stt_vad_start / on_stt_vad_end: Actualiza la fase del VA y los LED durante la escucha y el procesamiento.
• on_intent_progress / on_tts_start / on_tts_end: Gestiona el habla, actualiza los LED y puede activar el script de palabra de parada.
• on_stt_end: Envía el evento de texto reconocido.
• on_end: Detiene el VA, restablece los LED, finaliza el ducking.

Eventos del temporizador

• on_timer_started / on_timer_updated / on_timer_cancelled / on_timer_finished / on_timer_tick:
  • Actualiza los estados y nombres de los temporizadores.
  • Actualiza los LED.
  • Reduce las actualizaciones de LED a cada 5 segundos para el temporizador en cuenta atrás.

Agradecimientos especiales

Nos gustaría agradecer a FormatBCE por crear este increíble archivo YAML para el Seeed Studio ReSpeaker XVF3800. Apóyalo en su GitHub

Soporte técnico y debate sobre el producto

Gracias por elegir nuestros productos. Estamos aquí para ofrecerte diferentes tipos de soporte y garantizar que tu experiencia con nuestros productos sea lo más fluida posible. Ofrecemos varios canales de comunicación para adaptarnos a diferentes preferencias y necesidades.