mcu-echo-1: migrate to speaker-based media_player with mixer

The i2s_audio media_player platform was removed; rebuild the audio
pipeline like mcu-echo.yaml with an i2s_audio speaker feeding a
mixer, so media playback, TTS announcements, and rtttl beeps all
share the one physical DAC output without conflicting. Also uses
format: NONE instead of the deprecated codec_support_enabled.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

mcu-echo-1.yaml

@@ -15,33 +15,15 @@ esphome:
 esp32:
   variant: esp32
   framework:
-    type: arduino
+    type: esp-idf
-    # version: 2.0.14
-    # platform_version: 6.5.0
-    # type: esp-idf
-    # version: 5.1.2
-    # platform_version: 6.5.0
-
-
-external_components:
-  - source: components
-  # - source:
-  #     type: git
-  #     url: https://github.com/nielsnl68/esphome
-  #     ref: nvds-RTTTL_I2S
-  #   components: [ speaker, rtttl ]
-  #   refresh: 0s
-  - source: github://pr#5177
-    components: [rtttl]
-    refresh: 0s
 
 packages:
-  common: !include common/common_esp8266.yaml # this profile is without fancy features that are not supported by arduino
+  common: !include common/common.yaml
 
 api:
-  services:
+  actions:
     # https://github.com/granadaxronos/120-SONG_NOKIA_RTTTL_RINGTONE_PLAYER_FOR_ARDUINO_UNO/blob/master/RTTTL_PLAYER/songs.h
-    - service: play_rtttl
+    - action: play_rtttl
       variables:
         song: string
       then:
@@ -81,7 +63,7 @@ light:
   - platform: esp32_rmt_led_strip
     name: LED
     id: neo_buildin
-    rgb_order: GRB
+    channel_colors: GRB
     pin: 27
     num_leds: 1
     chipset: ws2812
@@ -110,35 +92,58 @@ light:
 #                 # brightness: 30%
 
 i2s_audio:
+  - id: speaker_bus
     i2s_lrclk_pin: 33
     i2s_bclk_pin: 19
 
-media_player:
-  - platform: i2s_audio
-    id: media_out
-    name: ${name} Player
-    dac_type: external
-    i2s_dout_pin:
-      number: 22
-      allow_other_uses: true
-    mode: mono
-
 speaker:
   - platform: i2s_audio
-    id: echo_speaker
+    id: speaker_id
+    i2s_audio_id: speaker_bus
     dac_type: external
-    i2s_dout_pin:
+    i2s_dout_pin: 22
-      number: 22
-      allow_other_uses: true
     channel: mono
+    sample_rate: 16000
+    buffer_duration: 100ms
+  - platform: mixer
+    id: mixer_speaker_id
+    output_speaker: speaker_id
+    num_channels: 1
+    task_stack_in_psram: false
+    source_speakers:
+      - id: announcement_spk_mixer_input
+      - id: media_spk_mixer_input
+      - id: rtttl_spk_mixer_input
+  - platform: resampler
+    id: media_spk_resampling_input
+    output_speaker: media_spk_mixer_input
+  - platform: resampler
+    id: announcement_spk_resampling_input
+    output_speaker: announcement_spk_mixer_input
+  - platform: resampler
+    id: rtttl_spk_resampling_input
+    output_speaker: rtttl_spk_mixer_input
+
+media_player:
+  - platform: speaker
+    id: media_out
+    name: ${name} Player
+    buffer_size: 14000
+    media_pipeline:
+      speaker: media_spk_resampling_input
+      format: NONE
+    announcement_pipeline:
+      speaker: announcement_spk_resampling_input
+      format: NONE
 
 rtttl:
   id: my_rtttl
-  speaker: echo_speaker
+  speaker: rtttl_spk_resampling_input
 
 microphone:
   - platform: i2s_audio
     id: echo_microphone
+    i2s_audio_id: speaker_bus
     i2s_din_pin: 23
     adc_type: external
     pdm: true