mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-05 09:20:08 +01:00
207 lines
7.1 KiB
ReStructuredText
207 lines
7.1 KiB
ReStructuredText
SSD1327 OLED Display
|
|
====================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up SSD1327 OLED display drivers.
|
|
:image: ssd1327.jpg
|
|
|
|
.. _ssd1327-i2c:
|
|
|
|
Over I²C
|
|
--------
|
|
|
|
The ``ssd1327_i2c`` display platform allows you to use
|
|
SSD1327 (`datasheet <https://www.generationrobots.com/media/Ecran_OLED_0_96/SSD1327_datasheet.pdf>`__,
|
|
`Waveshare <https://www.waveshare.com/1.5inch-oled-module.htm>`__) displays with ESPHome. Note that this component is for
|
|
displays that are connected via the :ref:`I²C Bus <i2c>`. If your SSD1327 is connected via the 4-Wire
|
|
:ref:`SPI bus <spi>`, see :ref:`ssd1327-spi`.
|
|
|
|
.. figure:: images/ssd1327-full.jpg
|
|
:align: center
|
|
:width: 75.0%
|
|
|
|
SSD1327 OLED Display
|
|
|
|
Connect CLK to the SCL (clock) pin you chose for the :ref:`I²C Bus <i2c>` and connect DIN to the SDA (data) pin.
|
|
For power, connect VCC to 3.3V and GND to GND. You may also connect the ``RESET`` pin to an available pin on the
|
|
ESP; this is recommended as it improves reliability.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
i2c:
|
|
sda: D1
|
|
scl: D2
|
|
|
|
display:
|
|
- platform: ssd1327_i2c
|
|
model: "SSD1327 128x128"
|
|
reset_pin: D0
|
|
address: 0x3D
|
|
lambda: |-
|
|
it.print(0, 0, id(font), "Hello World!");
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **model** (**Required**): The model of the display. At present, only one option is available:
|
|
|
|
- ``SSD1327 128x128``
|
|
|
|
- **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin. Defaults to not connected.
|
|
- **address** (*Optional*, int): Manually specify the :ref:`I²C <i2c>` address of the display. Defaults to 0x3D.
|
|
- **rotation** (*Optional*): Set the rotation of the display. Everything you draw in ``lambda:`` will be rotated
|
|
by this option. One of ``0°`` (default), ``90°``, ``180°``, ``270°``.
|
|
- **brightness** (*Optional*, percentage): Set display brightness in %. Defaults to ``100%``
|
|
- **lambda** (*Optional*, :ref:`lambda <config-lambda>`): The lambda to use for rendering the content on the display.
|
|
See :ref:`display-engine` for more information.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to re-draw the screen. Defaults to ``5s``.
|
|
- **pages** (*Optional*, list): Show pages instead of a single lambda. See :ref:`display-pages`.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
|
|
.. note::
|
|
|
|
To speed up the display update process you can select higher I²C frequencies.
|
|
|
|
.. _ssd1327-spi:
|
|
|
|
Over SPI
|
|
--------
|
|
|
|
The ``ssd1327_spi`` display platform allows you to use
|
|
SSD1327 (`datasheet <https://cdn-shop.adafruit.com/datasheets/SSD1327.pdf>`__, `Adafruit <https://www.adafruit.com/product/326>`__)
|
|
displays with ESPHome. Note that this component is for displays that are connected via the 4-Wire :ref:`SPI bus <spi>`.
|
|
If your SSD1327 is connected via the :ref:`I²C Bus <i2c>`, see :ref:`ssd1327-i2c`.
|
|
|
|
.. figure:: images/ssd1327-full.jpg
|
|
:align: center
|
|
:width: 75.0%
|
|
|
|
SSD1327 OLED Display
|
|
|
|
Connect CLK to the SCK (clock) pin you chose for the :ref:`SPI bus <spi>`, connect DIN to the MOSI/SDO pin, and connect ``DC``
|
|
to another pin of your choosing. ``CS`` may connect to a pin on the ESP or it may connect to ground if the display is the only
|
|
device connected to the SPI bus. For power, connect VCC to 3.3V and GND to GND. You may also connect the ``RESET`` pin to an
|
|
available pin on the ESP; this is recommended as it improves reliability.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
spi:
|
|
clk_pin: D0
|
|
mosi_pin: D1
|
|
|
|
display:
|
|
- platform: ssd1327_spi
|
|
model: "SSD1327 128x128"
|
|
cs_pin: D2
|
|
dc_pin: D3
|
|
reset_pin: D4
|
|
lambda: |-
|
|
it.print(0, 0, id(font), "Hello World!");
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **model** (**Required**): The model of the display. At present, only one option is available:
|
|
|
|
- ``SSD1327 128x128``
|
|
|
|
- **cs_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The Chip Select (CS) pin.
|
|
- **dc_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The DC pin.
|
|
- **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin. Defaults to not connected.
|
|
- **rotation** (*Optional*): Set the rotation of the display. Everything you draw in ``lambda:`` will be rotated
|
|
by this option. One of ``0°`` (default), ``90°``, ``180°``, ``270°``.
|
|
- **brightness** (*Optional*, percentage): Set display brightness in %. Defaults to ``100%``
|
|
- **lambda** (*Optional*, :ref:`lambda <config-lambda>`): The lambda to use for rendering the content on the display.
|
|
See :ref:`display-engine` for more information.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to re-draw the screen. Defaults to ``5s``.
|
|
- **pages** (*Optional*, list): Show pages instead of a single lambda. See :ref:`display-pages`.
|
|
- **spi_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`SPI Component <spi>` if you want
|
|
to use multiple SPI buses.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
|
|
Configuration examples
|
|
**********************
|
|
|
|
To utilize the grayscale capabilities of this display module, add a ``color:`` section to your YAML configuration;
|
|
please see :ref:`color <config-color>` for more details. As this is a grayscale display, it only uses the white color
|
|
element as shown below.
|
|
|
|
To use grayscale in your lambda:
|
|
|
|
.. code-block:: yaml
|
|
|
|
color:
|
|
- id: medium_gray
|
|
white: 50%
|
|
|
|
...
|
|
|
|
display:
|
|
...
|
|
lambda: |-
|
|
it.rectangle(0, 0, it.get_width(), it.get_height(), id(medium_gray));
|
|
|
|
|
|
To bring in grayscale images:
|
|
|
|
.. code-block:: yaml
|
|
|
|
image:
|
|
- file: "image.jpg"
|
|
id: my_image
|
|
resize: 120x120
|
|
type: GRAYSCALE
|
|
|
|
...
|
|
|
|
display:
|
|
...
|
|
lambda: |-
|
|
it.image(0, 0, id(my_image));
|
|
|
|
In this case, the image will be converted to grayscale (regardless of its original format) and rendered as such
|
|
when drawn on the display. Note that the original image may require some adjustment as not all images immediately
|
|
convert nicely to the 4-bit grayscale format this display supports.
|
|
|
|
Note that if ``type: GRAYSCALE`` is omitted, the image will render as a binary image (no grayscale); in this
|
|
case, a color attribute may be passed to the ``image()`` method as follows:
|
|
|
|
.. code-block:: yaml
|
|
|
|
image:
|
|
- file: "image.jpg"
|
|
id: my_image
|
|
resize: 120x120
|
|
|
|
...
|
|
|
|
display:
|
|
...
|
|
lambda: |-
|
|
it.image(0, 0, id(medium_gray), id(my_image));
|
|
|
|
This will draw the complete image with the given shade of gray.
|
|
|
|
To create a new color as needed in code:
|
|
|
|
.. code-block:: yaml
|
|
|
|
display:
|
|
...
|
|
lambda: |-
|
|
float white_intensity = 0.5;
|
|
Color variable_gray(0, 0, 0, white_intensity);
|
|
it.rectangle(0, 0, it.get_width(), it.get_height(), variable_gray);
|
|
|
|
The last argument of the ``Color`` constructor is the intensity of the white element; it is a percentage
|
|
(value of range 0 to 1). It may be defined by another variable so it is adjustable in code.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`index`
|
|
- :apiref:`ssd1327_base/ssd1327_base.h`
|
|
- :ghedit:`Edit`
|