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130 lines
3.7 KiB
ReStructuredText
130 lines
3.7 KiB
ReStructuredText
ILI9341 TFT LCD
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===============
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.. seo::
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:description: Instructions for setting up ILI9341 TFT LCD display drivers.
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:image: ili9341.jpg
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.. _ili9341:
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Usage
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-----
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The ``ili9341`` display platform allows you to use
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ILI9341 (`datasheet <https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf>`__,
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`Aliexpress <https://www.aliexpress.com/af/Ili9341.html>`__)
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displays with ESPHome. As this is a somewhat higher resolution display and may require pins
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beyond the typical SPI connections, it is better suited for use with the ESP32.
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.. figure:: images/ili9341-full.jpg
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:align: center
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:width: 75.0%
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ILI9341 display
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.. code-block:: yaml
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# Example minimal configuration entry
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display:
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- platform: ili9341
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model: TFT 2.4
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cs_pin: 14
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dc_pin: 27
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led_pin: 32 ### see note below ###
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reset_pin: 33
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lambda: |-
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it.fill(COLOR_BLACK);
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it.print(0, 0, id(my_font), id(my_red), TextAlign::TOP_LEFT, "Hello World!");
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Configuration variables:
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************************
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- **model** (**Required**): The model of the display. Options are:
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- ``M5STACK``
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- ``TFT 2.4``
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- **cs_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The CS pin.
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- **dc_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The DC pin.
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- **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin.
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- **led_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The display's backlight pin. **Note:** Connect to a
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PWM-capable pin to switch/dim the display's backlight **or** save a pin by connecting it through a 3.3K resistor to the +3V supply.
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- **rotation** (*Optional*): Set the rotation of the display. Everything drawn in the ``lambda:`` will be rotated
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per this option. One of ``0°`` (default), ``90°``, ``180°``, or ``270°``.
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- **lambda** (*Optional*, :ref:`lambda <config-lambda>`): The lambda to use for rendering the content on the display.
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See :ref:`display-engine` for more information.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to re-draw the screen. Defaults to ``5s``.
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- **auto_clear_enabled** (*Optional*, boolean): Whether to automatically clear the display in each loop (''true'', default),
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or to keep the existing display content (must overwrite explicitly, e.g., only on data change).
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- **pages** (*Optional*, list): Show pages instead of a single lambda. See :ref:`display-pages`.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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Configuration examples
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**********************
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To utilize the color capabilities of this display module, you'll likely want to add a ``color:`` section to your
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YAML configuration; please see :ref:`color <config-color>` for more detail on this configuration section.
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To use colors in your lambda:
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.. code-block:: yaml
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color:
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- id: my_red
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red: 100%
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green: 3%
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blue: 5%
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...
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display:
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...
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lambda: |-
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it.rectangle(0, 0, it.get_width(), it.get_height(), id(my_red));
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To bring in color images:
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.. code-block:: yaml
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image:
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- file: "image.jpg"
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id: my_image
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resize: 200x200
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type: RGB24
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...
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display:
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...
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lambda: |-
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it.image(0, 0, id(my_image));
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To configure a dimmable backlight:
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.. code-block:: yaml
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# Define a PWM output on the ESP32
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output:
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- platform: ledc
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pin: 32
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id: gpio_32_backlight_pwm
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# Define a monochromatic, dimmable light for the backlight
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light:
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- platform: monochromatic
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output: gpio_32_backlight_pwm
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name: "ILI9341 Display Backlight"
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id: back_light
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restore_mode: ALWAYS_ON
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See Also
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--------
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- :doc:`index`
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- :apiref:`ili9341/ili9341_display.h`
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- :ghedit:`Edit`
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