mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-05 09:20:08 +01:00
896afdcfa1
* Missing colon * update sun * format fix and adaptation * fix format * fix format 2 * fix format 3 * fix format * fix format * fix format * format fix * revert title as heads * rename image case-sensitive * rename again
75 lines
2.3 KiB
ReStructuredText
75 lines
2.3 KiB
ReStructuredText
PCD 8544 Display (Nokia 5110/3310)
|
|
==================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up PCD8544 display drivers.
|
|
:image: pcd8544.jpg
|
|
|
|
.. _pcd8544:
|
|
|
|
Usage
|
|
-----
|
|
|
|
The ``pcd8544`` display platform allows you to use
|
|
PCD8544 (`Adafruit <https://www.adafruit.com/product/338>`__)
|
|
displays with ESPHome. Connection to this display is made using the 4-Wire :ref:`SPI bus <spi>`.
|
|
|
|
It's a monochrome LCD display was used in old Nokia 5110/3310 cell phones.
|
|
|
|
The resolution of the display is 84x48 pixels.
|
|
|
|
.. figure:: images/pcd8544-full.jpg
|
|
:align: center
|
|
:width: 75.0%
|
|
|
|
PCD8544 Display
|
|
|
|
Connect CLK, DIN, CS (CE), DC, and RST to pins on your ESP. For power, connect
|
|
VCC to 3.3V and GND to GND.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
spi:
|
|
clk_pin: D5
|
|
mosi_pin: D7
|
|
|
|
display:
|
|
- platform: pcd8544
|
|
reset_pin: D0
|
|
cs_pin: D8
|
|
dc_pin: D1
|
|
contrast: 0x7f
|
|
lambda: |-
|
|
it.print(0, 0, id(font), "Hello World!");
|
|
|
|
|
|
Backlight
|
|
*********
|
|
|
|
To use a backlight LIGHT pin needs to be connected to ground. If connected to GPIO pin it can be controlled from EPSHome. See :doc:`/components/light/monochromatic`.
|
|
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **reset_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The RESET pin.
|
|
- **cs_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The CS pin.
|
|
- **dc_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The DC pin.
|
|
- **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.
|
|
- **contrast** (*Optional*, int): Set screen contrast (0-255). Defaults to ``0x7f``.
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`index`
|
|
- :apiref:`pcd8544/pcd8544.h`
|
|
- `Tutorial from Adafruit <https://learn.adafruit.com/nokia-5110-3310-monochrome-lcd>`__
|
|
- `PCD8544 Library <https://github.com/adafruit/Adafruit-PCD8544-Nokia-5110-LCD-library>`__ by `Adafruit <https://www.adafruit.com/>`__
|
|
- :ghedit:`Edit`
|