I2S and I2C On Pro What addresses/Pins

The lack of documentation on the sensors is pretty disappointing.

I think I found the i2c address for the "IMU motion sensor" . I thought there was a temperature sensor for the esp32 but seems like it's only the pi builtin.

For the Microphone, what pins is it connected to on the esp32, I'm assuming it's not connected to the pi at all even with the jumpers.

I'm doing a WHOLE LOT OF Googling to try and figure out the details and trying this and that. When the details should be clearly put in the docs for the KEY.

 

I found the Schematic for the Udoo Key here: https://udoo.org/download/files/UDOO_KEY/Doc/UDOO_KEY_SCHEMATICS.pdf
According to this there are two ESP32 IO used the I2S, The I2S CLK is connected to IO27 and the IS2 DO to IO27, The I2S DI is not
connected,

I have not used I2S protocols so I can't help you there but I hope this helps.

 

Sorry for my error in the I2S DO IO port. It is IO 25 NOT IO 21. My bad!

 

This ESPHOME config might work:

Code:

i2s_audio:
  i2s_lrclk_pin: GPIO27

microphone:
  - platform: i2s_audio
    id: external_mic
    adc_type: external
    i2s_din_pin: GPIO25
    pdm: true
    on_data:
      - logger.log:
          format: "Received %d bytes"
          args: ['x.size()']

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(assist).set_use_wake_word(true);
      - if:
          condition:
            not:
              - voice_assistant.is_running
          then:
            - voice_assistant.start_continuous
    on_turn_off:
      - voice_assistant.stop
      - lambda: id(assist).set_use_wake_word(false);

voice_assistant:
  microphone: external_mic
  use_wake_word: true
  noise_suppression_level: 2
  auto_gain: 31dBFS
  volume_multiplier: 2.0
  on_stt_end:
    then:
      - logger.log: x
  id: assist

 

This is for MPU instead:

Code:

i2c:
  sda: 18
  scl: 21
  scan: true
  id: bus_a

sensor:
  - platform: mpu6050
    address: 0x69
    accel_x:
      name: "MPU6050 Accel X"
    accel_y:
      name: "MPU6050 Accel Y"
    accel_z:
      name: "MPU6050 Accel z"
    gyro_x:
      name: "MPU6050 Gyro X"
    gyro_y:
      name: "MPU6050 Gyro Y"
    gyro_z:
      name: "MPU6050 Gyro z"
    temperature:
      name: "MPU6050 Temperature"
    update_interval: 1s

 

Did you get anything for the microphone?
Uncle Google is suddenly not as helpful as usual.