.. currentmodule:: gpiozero

These additional interfaces are provided to group collections of components together for ease of use, and as examples. They are composites made up of components from the various :doc:`api_input` and :doc:`api_output` provided by GPIO Zero. See those pages for more information on using components individually.

.. autoclass:: LEDBoard(\*pins, pwm=False, active_high=True, initial_value=False, \*\*named_pins)
    :inherited-members:
    :members:

.. autoclass:: LEDBarGraph(\*pins, pwm=False, active_high=True, initial_value=0)
    :inherited-members:
    :members:

.. autoclass:: ButtonBoard(\*pins, pull_up=True, bounce_time=None, hold_time=1, hold_repeat=False, \*\*named_pins)
    :inherited-members:
    :members:

.. autoclass:: TrafficLights
    :inherited-members:
    :members:

.. autoclass:: LedBorg
    :inherited-members:
    :members:

.. autoclass:: PiLiter
    :inherited-members:
    :members:

.. autoclass:: PiLiterBarGraph
    :inherited-members:
    :members:

.. autoclass:: PiTraffic
    :inherited-members:
    :members:

.. autoclass:: PiStop
    :inherited-members:
    :members:

.. autoclass:: TrafficLightsBuzzer
    :inherited-members:
    :members:

.. autoclass:: FishDish
    :inherited-members:
    :members:

.. autoclass:: TrafficHat
    :inherited-members:
    :members:

.. autoclass:: Robot
    :inherited-members:
    :members:

.. autoclass:: RyanteckRobot
    :inherited-members:
    :members:

.. autoclass:: CamJamKitRobot
    :inherited-members:
    :members:

.. autoclass:: Energenie
    :inherited-members:
    :members:

.. autoclass:: SnowPi
    :inherited-members:
    :members:

The classes in the sections above are derived from a series of base classes, some of which are effectively abstract. The classes form the (partial) hierarchy displayed in the graph below:

For composite devices, the following chart shows which devices are composed of which other devices:

The following sections document these base classes for advanced users that wish to construct classes for their own devices.

.. autoclass:: LEDCollection
    :members:

.. autoclass:: CompositeOutputDevice(\*args, _order=None, \*\*kwargs)
    :members:

.. autoclass:: CompositeDevice(\*args, _order=None, \*\*kwargs)
    :members: