Add dummy TTS speaker

supersensor.yaml

@@ -369,6 +369,12 @@ i2s_audio:
       number: GPIO17 # WS
     i2s_bclk_pin:
       number: GPIO16  # SCK
+  # DUMMY: See `speaker:` below.
+  - id: i2s_output
+    i2s_lrclk_pin:
+      number: GPIO12
+    i2s_bclk_pin:
+      number: GPIO13
 
 microphone:
   - platform: i2s_audio
@@ -379,6 +385,17 @@ microphone:
     pdm: false
     channel: left
 
+speaker:
+  # DUMMY: The SuperSensor has no speaker attached to GPIO32/GPIO12/GPIO13
+  # This is needed to work around home-assistant/core#142363 and the inability
+  # of an Assist pipeline to work properly with no STT configured (issue unknown)
+  # So instead we just have a speaker to nowhere. Stupid but should work.
+  - platform: i2s_audio
+    id: spkr
+    i2s_audio_id: i2s_output
+    dac_type: external
+    i2s_dout_pin: GPIO33
+
 micro_wake_word:
   id: mww
   microphone:
@@ -410,6 +427,7 @@ micro_wake_word:
 voice_assistant:
   id: va
   microphone: mic
+  speaker: spkr
   micro_wake_word: mww
   use_wake_word: false
   noise_suppression_level: 3