i2c:
  sda: 4   #replace by your board's pin define
  scl: 5    #replace by your board's pin define
  scan: true
  id: bus_a

pcf8574:
  - id: 'pcf8574_hub_out_1'  # for output channel 1-8
    address: 0x24     #replace by your PCF8574 address
switch:
  - platform: gpio
    name: "a8-light1"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 0
      mode: OUTPUT
      inverted: true
  - platform: gpio
    name: "a8-light2"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 1
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a8-light3"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 2
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a8-light4"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a8-light5"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 4
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a8-light6"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 5
      mode: OUTPUT
      inverted: true
  - platform: gpio
    name: "a8-light7"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 6
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a8-light8"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 7
      mode: OUTPUT
      inverted: true