Voice assistant with a mechanical display

esphome:
  name: esp-assistant
  friendly_name: esp-assistant

esp32:
  board: lolin32
  framework:
    type: arduino

# Enable logging
logger:
  # level: DEBUG
  baud_rate: 0

# Enable Home Assistant API
api:
  encryption:
    key: "your-encryption-key"

ota:
  password: "your-password"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  power_save_mode: none
  output_power: 20dB

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "esp-assistant Fallback Hotspot"
    password: "your-ap-password"

captive_portal:

button:
  - platform: restart
    name: "Assistant Restart"

i2c:
  sda: 19
  scl: 17
  scan: False
  id: bus_a
  frequency: 400kHz

bme680_bsec:
  address: 0x77
  sample_rate: ulp

apds9960:
  id: adps9960_sensor
  address: 0x39
  update_interval: 60s

text_sensor:
  - platform: bme680_bsec
    iaq_accuracy:
      name: "BME680 IAQ Accuracy"

  - platform: template
    name: "BME680 IAQ Classification"
    icon: "mdi:checkbox-marked-circle-outline"
    lambda: |-
      if ( int(id(iaq).state) <= 50) {
        return {"Excellent"};
      }
      else if (int(id(iaq).state) >= 51 && int(id(iaq).state) <= 100) {
        return {"Good"};
      }
      else if (int(id(iaq).state) >= 101 && int(id(iaq).state) <= 150) {
        return {"Lightly polluted"};
      }
      else if (int(id(iaq).state) >= 151 && int(id(iaq).state) <= 200) {
        return {"Moderately polluted"};
      }
      else if (int(id(iaq).state) >= 201 && int(id(iaq).state) <= 250) {
        return {"Heavily polluted"};
      }
      else if (int(id(iaq).state) >= 251 && int(id(iaq).state) <= 350) {
        return {"Severely polluted"};
      }
      else if (int(id(iaq).state) >= 351) {
        return {"Extremely polluted"};
      }
      else {
        return {"error"};
      }

binary_sensor:
  - platform: apds9960
    direction: UP
    id: apds9960_up

  - platform: apds9960
    direction: DOWN
    id: apds9960_down

  - platform: apds9960
    direction: LEFT
    id: apds9960_left

  - platform: apds9960
    direction: RIGHT
    id: apds9960_right
    on_press:
      then:
        - script.execute:
            id: step_backlash
            position: 682
        - script.wait: step_backlash
        - voice_assistant.start:

  - platform: gpio
    pin:
      number: 23
      inverted: true
      mode:
        input: true
        pullup: true
    id: position_sensor
    name: Zero Position Sensor
    on_press:
      - stepper.report_position:
          id: picture_stepper
          position: 0

sensor:
  - platform: hdc1080
    temperature:
      name: "HDC1080 Temperature"
    humidity:
      name: "HDC1080 Humidity"
    address: 0x40
    update_interval: 60s
    id: hdc1080_sensor

  - platform: bme680_bsec
    temperature:
      name: "BME680 Temperature"
    pressure:
      name: "BME680 Pressure"
    humidity:
      name: "BME680 Humidity"
    gas_resistance:
      name: "BME680 Gas Resistance"
    iaq:
      name: "BME680 IAQ"
      id: iaq
    co2_equivalent:
      name: "BME680 CO2 Equivalent"
    breath_voc_equivalent:
      name: "BME680 Breath VOC Equivalent"

light:
  - platform: neopixelbus
    type: GRB
    variant: WS2812
    pin: 22
    num_leds: 4
    name: "RGB Light"
    id: ws2812_led
    effects:
      - pulse:
          transition_length: 250ms
          update_interval: 250ms

i2s_audio:  
  - i2s_lrclk_pin: 13
    i2s_bclk_pin: 14
    id: audio_bus

media_player:
  - platform: i2s_audio
    dac_type: external
    id: max98357_speaker
    i2s_audio_id: audio_bus
    i2s_dout_pin: 27
    mode: mono
    name: ESPHome I2S Media Player

microphone:
  - platform: i2s_audio
    i2s_audio_id: audio_bus
    id: inmp441_mic
    adc_type: external
    i2s_din_pin: 26
    pdm: false

voice_assistant:
  id: va
  microphone: inmp441_mic
  # media_player: max98357_speaker

  on_start:
    - media_player.stop:
    - light.turn_on:
        id: ws2812_led
        blue: 100%
        red: 0%
        green: 0%
        effect: none

  on_tts_start:
    - script.execute:
        id: step_backlash
        position: 1300
    - light.turn_on:
        id: ws2812_led
        blue: 50%
        red: 50%
        green: 50%
        effect: none

  on_tts_end:
    - wait_until:
        not: 
          script.is_running: step_backlash
    - media_player.play_media: !lambda return x;
    - light.turn_on:
        id: ws2812_led
        blue: 0%
        red: 0%
        green: 100%
        effect: pulse

  on_end:
    - delay: 1s
    - wait_until:
        not: 
          script.is_running: step_backlash
    - delay: 1s
    - wait_until:
        not:
          media_player.is_playing: max98357_speaker
    - light.turn_off: ws2812_led
    - script.execute:
        id: step_backlash
        position: 0

  on_error:
    - light.turn_on:
        id: ws2812_led
        blue: 0%
        red: 100%
        green: 0%
        effect: none
    - delay: 1s
    - light.turn_off: ws2812_led
    - script.execute:
        id: step_backlash
        position: 0

script:
  - id: step_backlash
    parameters:
      position: int
    then:
      - stepper.set_target:
          id: picture_stepper
          target: !lambda |- 
            if(position > id(picture_stepper).current_position) return position + 200;
            else return position - 200;
      - wait_until:
          condition:
            lambda: |-
              return id(picture_stepper).current_position == id(picture_stepper).target_position;
      - stepper.set_target:
          id: picture_stepper
          target: !lambda return position;
      - wait_until:
          condition:
            lambda: |-
              return id(picture_stepper).current_position == id(picture_stepper).target_position;

switch:
  - platform: template
    id: talks_switch
    name: "Talk"
    optimistic: True
    turn_on_action:
      - script.execute:
          id: step_backlash
          position: 682
      - script.wait: step_backlash
      - voice_assistant.start:
    turn_off_action:
      - voice_assistant.stop:

number:
  - platform: template
    id: desired_position
    name: "Desired Position"
    max_value: 2
    min_value: 0
    optimistic: True
    step: 1
    on_value:
      then:
        - script.execute:
            id: step_backlash
            position: !lambda 'return x*682;'

stepper:
  - platform: uln2003
    id: picture_stepper
    pin_a: 33
    pin_b: 32
    pin_c: 21
    pin_d: 5
    max_speed: 400 steps/s
    sleep_when_done: True