85 lines
2.5 KiB
ReStructuredText
85 lines
2.5 KiB
ReStructuredText
ST7735 Display
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==============
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.. seo::
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:description: Instructions for setting up a ST7735 display drivers.
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:keywords: ST7735
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:image: st7735.jpg
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ST7735 Display Driver.
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Usage
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-----
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The ST7735 component allows you to use a ST7735 display
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(`datasheet and information <https://learn.adafruit.com/1-8-tft-display/downloads>`__,
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`Adafruit <https://www.adafruit.com/product/358>`__) in ESPHome.
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It uses the :ref:`SPI Bus <spi>` for communication.
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.. figure:: images/st7735.jpg
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:align: center
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:width: 75.0%
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ST7735 Display
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There are numerous board types out there. Some initialize differently as well. This driver will take a few options to narrow down the right settings.
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.. code-block:: yaml
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# Example configuration entry
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display:
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- platform: st7735
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model: "INITR_18BLACKTAB"
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reset_pin: D4
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cs_pin: D1
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dc_pin: D2
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rotation: 0
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device_width: 128
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device_height: 160
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col_start: 0
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row_start: 0
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eight_bit_color: true
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update_interval: 5s
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Configuration variables:
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************************
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- **model** (**Required**, "See Models Below"): This the model to use. INITR_BLACKTAB is the default
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- **cs_pin** (**Required**, :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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- **device_width** (**Required**, int): The device width. 128 is default
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- **device_height** (**Required**, int): The device height. 160 is default
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- **col_start** (**Required**, int): The starting column offset. Default value depends on **model**.
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- **row_start** (**Required**, int): The starting row offset. Default value depends on **model**.
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- **use_bgr** (*Optional*, "true/false"): Use BGR mode. Default is false.
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- **invert_colors** (*Optional*, "true/false"): Invert LCD colors. Default is false.
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- **eight_bit_color** (*Optional*, "true/false" ): 8bit mode. Default is false. This saves 50% of the buffer required for the display.
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- **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin.
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Memory notes:
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*************
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- 8Bit color saves 50% of the buffer required.
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- ``eight_bit_color: true`` 160x128 = 20480 *Important for memory constrained devices*
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- ``eight_bit_color: false`` 160x128x2 = 40960
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Models:
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*******
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- INITR_GREENTAB
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- INITR_REDTAB
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- INITR_BLACKTAB
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- INITR_MINI160X80
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- INITR_18BLACKTAB
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- INITR_18REDTAB
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See Also
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--------
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- :ref:`spi`
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- :doc:`/components/display/index`
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- :apiref:`st7735/st7735.h`
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- :ghedit:`Edit`
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