Arduino Example: Build \*.ino file with external Adafruit library
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1. Download ``platformio``
   `sources <https://github.com/ivankravets/platformio/archive/develop.zip>`_
2. Extract ZIP archive
3. Then run these commands:

.. code-block:: bash

    # Change directory to example
    $ cd platformio-develop/examples/arduino-adafruit-library/

    # Install Atmel AVR development platform with Arduino Framework
    $ platformio install atmelavr

    # Process example project
    $ platformio run

    # Upload firmware
    $ platformio run -t upload