ESP-12 + Relay board - can I flash it to ESPHome?

ESPHome
21

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22

managed to get it working, leaving the config in case anyone ever stumbles across this page facing the same issue:

esphome:
  name: relay-x16

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "xxx"

ota:
  password: "xxx"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Relay-X16 Fallback Hotspot"
    password: "xxx"

captive_portal:

web_server:
  port: 80

i2c:

- id: i2c_1

  scan: true

  scl: GPIO5

  sda: GPIO4

pcf8574:

- address: '0x27'

  id: pcf8575_1

  pcf8575: true

switch:

  - platform: gpio

    name: "relay 1"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 0

      number: 0

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 2"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 1

      number: 1

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 3"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 2

      number: 2

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 4"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 3

      number: 3

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 5"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 4

      number: 4

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 6"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 5

      number: 5

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 7"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 6

      number: 6

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 8"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 7

      number: 7

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 9"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 8

      number: 8

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 10"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 9

      number: 9

      mode:

        output: true

      inverted: false


  - platform: gpio

    name: "relay 11"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 10

      number: 10

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 12"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 11

      number: 11

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 13"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 12

      number: 12

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 14"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 13

      number: 13

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 15"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 14

      number: 14

      mode:

        output: true

      inverted: false

  - platform: gpio

    name: "relay 16"

    pin:

      pcf8574: pcf8575_1

      # Use pin number 15

      number: 15

      mode:

        output: true

      inverted: false
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