Introduction
============

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    :target: https://circuitpython.readthedocs.io/projects/ili9341/en/latest/
    :alt: Documentation Status

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    :target: https://travis-ci.com/adafruit/Adafruit_CircuitPython_ILI9341
    :alt: Build Status

displayio driver for ILI9341 and ILI9340 TFT-LCD displays.

Dependencies
=============
This driver depends on:

* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_

Please ensure all dependencies are available on the CircuitPython filesystem.
This is easily achieved by downloading
`the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>`_.

Usage Example
=============

.. code-block:: python

    import board
    import displayio
    import adafruit_ili9341

    spi = board.SPI()
    tft_cs = board.D9
    tft_dc = board.D10

    displayio.release_displays()
    display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)

    display = adafruit_ili9341.ILI9341(display_bus)

    # Make the display context
    splash = displayio.Group(max_size=10)
    display.show(splash)

    color_bitmap = displayio.Bitmap(320, 240, 1)
    color_palette = displayio.Palette(1)
    color_palette[0] = 0xFF0000

    try:
        bg_sprite = displayio.TileGrid(color_bitmap,
                                       pixel_shader=color_palette,
                                       position=(0, 0))
    except TypeError:
        bg_sprite = displayio.TileGrid(color_bitmap,
                                       pixel_shader=color_palette,
                                       x=0, y=0)
    splash.append(bg_sprite)

    while True:
        pass

Contributing
============

Contributions are welcome! Please read our `Code of Conduct
<https://github.com/adafruit/Adafruit_CircuitPython_ILI9341/blob/master/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.

Building locally
================

Zip release files
-----------------

To build this library locally you'll need to install the
`circuitpython-build-tools <https://github.com/adafruit/circuitpython-build-tools>`_ package.

.. code-block:: shell

    python3 -m venv .env
    source .env/bin/activate
    pip install circuitpython-build-tools

Once installed, make sure you are in the virtual environment:

.. code-block:: shell

    source .env/bin/activate

Then run the build:

.. code-block:: shell

    circuitpython-build-bundles --filename_prefix adafruit-circuitpython-ili9341 --library_location .

Sphinx documentation
-----------------------

Sphinx is used to build the documentation based on rST files and comments in the code. First,
install dependencies (feel free to reuse the virtual environment from above):

.. code-block:: shell

    python3 -m venv .env
    source .env/bin/activate
    pip install Sphinx sphinx-rtd-theme

Now, once you have the virtual environment activated:

.. code-block:: shell

    cd docs
    sphinx-build -E -W -b html . _build/html

This will output the documentation to ``docs/_build/html``. Open the index.html in your browser to
view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to
locally verify it will pass.