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}

Concerning the buttons is a DNF note on the MagTag schematics for the pull-ups, so I am using (with success) the following:

  - platform: gpio
    name: Pronote Button 1
    pin:
      number: GPIO15
      inverted: yes
      mode:
        input: true
        pullup: true
    filters:
      - delayed_on: 10ms

@adavidzh I've gotten the magtag working much better since posting this gist. I've updated the above based on my current config but not sure it's complete and I've not tested the above on it's own.

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