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
  - id: 'pcf_left'
    address: 0x21
    pcf8575: true
    i2c_id: bus_b
  - id: 'pcf_right'
    address: 0x20
    pcf8575: true
    i2c_id: bus_b