#i2c  address: 0x26 input pcf io
#i2c  address: 0x27 input pcf io
#i2c  address: 0x40 input ina219 power
#i2c  address: 0x68 input rtc ds1307
switch:
  - platform: gpio
    id: buzzer
    name: 'Buzzer'
    pin:
      number: GPIO2
      mode:
        output: true
      inverted: false
pcf8574:
  - id: 'pcf_inputs_1to14'
    i2c_id: bus_a
    address: 0x20
    pcf8575: true
  - id: 'pcf_inputs_15to28'
    i2c_id: bus_a
    address: 0x21
    pcf8575: true
  - id: 'pcf_inputs_28to35_menu'
    i2c_id: bus_a
    address: 0x22
    pcf8575: false