config:
  inputs:
    # validate pins are only used once
    binary:
      - id: "Q"
        pin: 1
      - id: "W"
        pin: 2
    analog:
      - id: "foo"
        pin: 3
    matrix: #validate matrix size is appropriate
      - id: "bar"
        pins:
          positive: [ 11, 12, 13, 14 ] #rows
          ground: [ 21, 22, 23, 24 ] #columns
        binary:
          - id: "a"
            location: [ 11, 21 ]
          - id: "s"
            location: [ 11, 22 ]
      #potential subsequent matrices
    multiplex: #validate control pin count is appropriate
      - id: "baz"
        pins:
          control: [ 31, 32, 33, 34 ]
          read: 30
        analog:
          - id: "z"
            index: 0
          - id: "x"
            index: 1
          - id: "c"
            index: bx0011
      - id: "bark"
        pins:
          control: [ 41, 42 ]
          read: 40
        analog:
          - id: "y"
            index: 0
          - id: "u"
            index: 1
          - id: "i"
            index: 2
          - id: "o"
            index: 3
  layers: