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+Adafruit CircuitPython BusDevice
+================================
+
+.. image:: https://readthedocs.org/projects/adafruit-circuitpython-busdevice/badge/?version=latest
+    :target: https://docs.circuitpython.org/projects/busdevice/en/latest/
+    :alt: Documentation Status
+
+.. image :: https://img.shields.io/discord/327254708534116352.svg
+    :target: https://adafru.it/discord
+    :alt: Discord
+
+.. image:: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice/workflows/Build%20CI/badge.svg
+    :target: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice/actions/
+    :alt: Build Status
+
+The ``I2CDevice`` and ``SPIDevice`` helper classes make managing transaction state
+on a bus easy. For example, they manage locking the bus to prevent other
+concurrent access. For SPI devices, it manages the chip select and protocol
+changes such as mode. For I2C, it manages the device address.
+
+.. _bus_device_installation:
+
+.. note:: On microcontroller boards using CircuitPython v6.3.0 or newer, the firmware
+    may already have the ``adafruit_bus_device`` package builtin, thus there may be no
+    need to add this package to your CIRCUITPY drive's "lib" directory. If both the
+    builtin and add-on ``adafruit_bus_device`` packages are present, then some
+    libraries that require this package *might* have problems importing it.
+
+    Please check the `CircuitPython documentation's "module support matrix"
+    <https://docs.circuitpython.org/en/latest/shared-bindings/support_matrix.html>`_
+    to make sure that your board's firmware does include the builtin ``adafruit_bus_device``
+    package.
+
+On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
+PyPI <https://pypi.org/project/adafruit-circuitpython-busdevice/>`_. To install for current user:
+
+.. code-block:: shell
+
+    pip3 install adafruit-circuitpython-busdevice
+
+To install system-wide (this may be required in some cases):
+
+.. code-block:: shell
+
+    sudo pip3 install adafruit-circuitpython-busdevice
+
+To install in a virtual environment in your current project:
+
+.. code-block:: shell
+
+    mkdir project-name && cd project-name
+    python3 -m venv .env
+    source .env/bin/activate
+    pip3 install adafruit-circuitpython-busdevice
+
+Usage Example
+=============
+
+See examples/read_register_i2c.py and examples/read_register_spi.py for examples of the module's usage.
+
+Documentation
+=============
+
+API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/busdevice/en/latest/>`_.
+
+For information on building library documentation, please check out `this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>`_.
+
+Contributing
+============
+
+Contributions are welcome! Please read our `Code of Conduct
+<https://github.com/adafruit/Adafruit_CircuitPython_BusDevice/blob/main/CODE_OF_CONDUCT.md>`_
+before contributing to help this project stay welcoming.