esphome-docs/components/display/st7735.rst
SenexCrenshaw 93f1e7345d
st7735 Docs (#608)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
2021-01-05 07:51:51 +13:00

82 lines
2.2 KiB
ReStructuredText

ST7735 Display
==============
.. seo::
:description: Instructions for setting up a ST7735 display drivers.
:keywords: ST7735
:image: ST7735.png
ST7735 Display Driver.
Usage
-----
The ST7735 component allows you to use a ST7735 display
(`datasheet and information <https://learn.adafruit.com/1-8-tft-display/downloads>`__,
`Adafruit <https://www.adafruit.com/product/358>`__) in ESPHome.
It uses the :ref:`SPI Bus <spi>` for communication.
.. figure:: images/st7735.jpg
:align: center
:width: 75.0%
ST7735 Display
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.
.. code-block:: yaml
# Example configuration entry
display:
- platform: st7735
model: "INITR_18BLACKTAB"
reset_pin: D4
cs_pin: D1
dc_pin: D2
rotation: 0
devicewidth: 128
deviceheight: 160
colstart: 0
rowstart: 0
eightbitcolor: true
update_interval: 5s
Configuration variables:
~~~~~~~~~~~~~~~~~~~~~~~~
- **model** (**Required**, "See Models Below"): This the model to use. INITR_BLACKTAB is the default
- **reset_pin** (:ref:`Pin Schema <config-pin_schema>`): The RESET pin.
- **cs_pin** (:ref:`Pin Schema <config-pin_schema>`): The CS pin.
- **dc_pin** (:ref:`Pin Schema <config-pin_schema>`): The DC pin.
- **devicewidth** (**Required**, int): The device width. 128 is default
- **deviceheight** (**Required**, int): The device height. 160 is default
- **colstart** (**Required**, int): The device height. 160 is default
- **rowstart** (**Required**, int): The device height. 160 is default
- **eightbitcolor** (*Optional*, "True/False" ): 8bit mode. Default is False. This saves 50% of the buffer required for the display.
Memory notes:
~~~~~~~~~~~~~
- 8Bit color saves 50% of the buffer required.
- eightbitcolor: True 160x128 = 20480 *Important for memory constrained devices*
- eightbitcolor: False 160x128x2 = 40960
Models:
~~~~~~~
- INITR_GREENTAB
- INITR_REDTAB
- INITR_BLACKTAB
- INITR_MIN_I160X80
- INITR_18BLACKTAB
- INITR_18REDTAB
See Also
--------
- :ref:`spi`
- :apiref:`st7735/st7735.h`
- :ghedit:`Edit`