db6ab22380
Fixes #39. Also note why: avoids 'pin in use' errors on subsequent reloads when using explicit SPI pins.
82 lines
2.7 KiB
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82 lines
2.7 KiB
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Introduction
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============
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.. image:: https://readthedocs.org/projects/adafruit-circuitpython-ili9341/badge/?version=latest
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:target: https://docs.circuitpython.org/projects/ili9341/en/latest/
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:alt: Documentation Status
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.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg
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:target: https://adafru.it/discord
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:alt: Discord
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.. image:: https://github.com/adafruit/Adafruit_CircuitPython_ILI9341/workflows/Build%20CI/badge.svg
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:target: https://github.com/adafruit/Adafruit_CircuitPython_ILI9341/actions/
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:alt: Build Status
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.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
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:target: https://github.com/astral-sh/ruff
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:alt: Code Style: Ruff
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displayio driver for ILI9341 and ILI9340 TFT-LCD displays.
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Dependencies
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=============
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This driver depends on:
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* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
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Please ensure all dependencies are available on the CircuitPython filesystem.
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This is easily achieved by downloading
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`the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>`_.
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Usage Example
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=============
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.. code-block:: python
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import board
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import displayio
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import fourwire
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import adafruit_ili9341
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# If you use explicit pins with busio.SPI(...), calling release_displays() first
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# prevents "pin in use" errors on subsequent reloads.
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displayio.release_displays()
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spi = board.SPI()
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tft_cs = board.D9
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tft_dc = board.D10
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display_bus = fourwire.FourWire(spi, command=tft_dc, chip_select=tft_cs)
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display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)
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# Make the display context
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splash = displayio.Group()
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display.root_group = splash
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color_bitmap = displayio.Bitmap(320, 240, 1)
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color_palette = displayio.Palette(1)
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color_palette[0] = 0xFF0000
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bg_sprite = displayio.TileGrid(color_bitmap,
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pixel_shader=color_palette,
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x=0, y=0)
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splash.append(bg_sprite)
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while True:
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pass
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Documentation
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=============
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API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/ili9341/en/latest/>`_.
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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>`_.
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Contributing
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============
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Contributions are welcome! Please read our `Code of Conduct
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<https://github.com/adafruit/Adafruit_CircuitPython_ILI9341/blob/main/CODE_OF_CONDUCT.md>`_
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before contributing to help this project stay welcoming.
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