ESPHome WIP Config for Adafruit MagTag

base_modified.yaml

# Common Sensors
binary_sensor:
  - platform: status
    name: "${device_name} Status"

# System
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  domain: !secret lan_domain

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: $device_name
    password: !secret wifi_password

ota:
  password: !secret ota_password
logger:
  baud_rate: 0

esphome-magtag.yaml

substitutions:
  device_id: office-magtag
  device_name: Office MagTag

# Device Details
esphome:
  name: $device_id
  
esp32:
  board: adafruit_magtag29_esp32s2
  framework:
    type: arduino

# Common
packages:
  base: !include base_modified.yaml

mqtt: !include mqtt.yaml

switch:
  - platform: gpio
    pin:
      number: GPIO21
      inverted: yes
    name: ${device_name} Aux Power # Used for LEDs and Light Sensor
    restore_mode: ALWAYS_ON
    internal: true # Don't export this, just leave it always on

# Lights
light:
  - id: header_lights
    platform: neopixelbus
    type: GRB
    variant: WS2811
    pin: GPIO1
    num_leds: 4
    name: "NeoPixel"
    effects:
      - pulse:
      - random:
      - strobe:
      - addressable_rainbow:
      - addressable_color_wipe:
      - addressable_scan:
      - addressable_twinkle:
      - addressable_random_twinkle:
      - addressable_fireworks:
  - platform: status_led
    name: ${device_name} Status LED
    pin: GPIO13

# Light Sensor
# FIXME: src/esphome/components/adc/adc_sensor.cpp:65:21: error: 'ADC_WIDTH_BIT_12' was not declared in this scope
# sensor:
#   - platform: adc
#     pin: A3
#     name: ${device_name} Light Sensor

# Buttons
binary_sensor:
  - name: Button Left
    platform: gpio
    internal: true
    pin:
      number: GPIO15
      inverted: true
      mode:
        input: true
        pullup: true
  - name: Button Up
    platform: gpio
    internal: true
    pin:
      number: GPIO14
      inverted: true
      mode:
        input: true
        pullup: true
  - name: Button for Light
    platform: gpio
    pin:
      number: GPIO12
      inverted: true
      mode:
        input: true
        pullup: true
  - name: Button Right
    platform: gpio
    internal: true
    pin:
      number: GPIO11
      inverted: true
      mode:
        input: true
        pullup: true


# Display
font:
  - file:
      type: gfonts
      family: Ubuntu
    id: font_default
    size: 12

spi:
  clk_pin: GPIO36
  mosi_pin: GPIO35
  miso_pin: GPIO37

display:
  - id: device_display
    platform: waveshare_epaper
    cs_pin: GPIO8
    dc_pin: GPIO7
    busy_pin: GPIO5
    reset_pin: GPIO6
    model: gdey029t94
    update_interval: 60s
    rotation: 270
    lambda: |-
      it.print(0, 0, id(font_default), "Hello World!");

mqtt.yaml

broker: !secret mqtt_host
username: esphome
password: !secret mqtt_password
client_id: $device_id
topic_prefix:
  esphome/${device_id}

Interesting. I also got the light sensor and VBAT measurement to work:

sensor:
  # Light Sensor
  - platform: adc
    pin: GPIO3
    name: Pronote Light Sensor
    filters:
      - offset: -0.030

  - platform: adc
    pin: GPIO4
    name: Battery voltage
    id: battery_voltage
    accuracy_decimals: 2
    update_interval: 60s
    attenuation: 11db
    filters:
      # From the schematics there is a by-2 divider:
      # https://learn.adafruit.com/assets/96946
      - multiply: 2.0

The I2C is also correctly scanned:

i2c:
  sda: GPIO33
  scl: GPIO34
  scan: true

The speaker also works:

# Based on https://esphome.io/components/output/ledc
# and https://esphome.io/components/rtttl.html
output:
  - platform: ledc
    id: spk_out
    pin: GPIO17

rtttl:
  output: spk_out
  id: speaker
  on_finished_playback:
    - switch.turn_off: speaker_power

I am using deep_sleep and before entering sleep the power to the LEDs, light sensor, and speakers can be automatically turned off using:

esphome: # https://esphome.io/components/esphome
  # [...]
  on_shutdown:
    priority: 700
    then:
      - switch.turn_off: neopixel_power
      - switch.turn_off: speaker_power

Another thing that works is to power on/off the LEDs automatically:

light:
  - platform: fastled_clockless
     #[...]
    on_turn_on:
      - switch.turn_on: neopixel_power
    on_turn_off:
      - switch.turn_off: neopixel_power

The speaker also works:

# Based on https://esphome.io/components/output/ledc
# and https://esphome.io/components/rtttl.html
output:
  - platform: ledc
    id: spk_out
    pin: GPIO17

rtttl:
  output: spk_out
  id: speaker
  on_finished_playback:
    - switch.turn_off: speaker_power

I am using deep_sleep and before entering sleep the power to the LEDs, light sensor, and speakers can be automatically turned off using:

esphome: # https://esphome.io/components/esphome
  # [...]
  on_shutdown:
    priority: 700
    then:
      - switch.turn_off: neopixel_power
      - switch.turn_off: speaker_power

Another thing that works is to power on/off the LEDs automatically:

light:
  - platform: fastled_clockless
     #[...]
    on_turn_on:
      - switch.turn_on: neopixel_power
    on_turn_off:
      - switch.turn_off: neopixel_power

Can you elaborate on what you are using to define 'speaker_power'?

Can you elaborate on what you are using to define speaker_power?

This is the pin that powers the audio amplifier:

switch:
  - platform: gpio
    name: NeoPixel Power # Used for LEDs and Light Sensor
    pin:
      number: GPIO21
      inverted: yes
    id: neopixel_power
    internal: true # Don't export this
  
  - platform: gpio
    name: Speaker Power # Used for Speaker amplifier
    pin:
      number: GPIO16
    id: speaker_power
    internal: true # Don't export this