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API - Pi Information
====================

.. currentmodule:: gpiozero

The GPIO Zero library also contains a database of information about the various
revisions of the Raspberry Pi computer. This is used internally to raise
warnings when non-physical pins are used, or to raise exceptions when
pull-downs are requested on pins with physical pull-up resistors attached. The
following functions and classes can be used to query this database:

.. autofunction:: pi_info

.. autoclass:: PiBoardInfo

.. autoclass:: HeaderInfo

.. autoclass:: PinInfo