zephyr

History

Marek Matej ea80a331c0 samples: auxdisplay: Add ESP32 board overlay Add the overlay for the esp-wrover-kit, to drive a character display based on HD44780 chipset using the I2C bus gpio controller PCF8574. Signed-off-by: Marek Matej <marek.matej@espressif.com>		2024-04-19 10:07:00 +02:00
..
boards	samples: auxdisplay: Add ESP32 board overlay	2024-04-19 10:07:00 +02:00
src	samples/auxdisplay: Switch main return type to int.	2023-05-31 10:36:17 +02:00
CMakeLists.txt
prj.conf
README.rst	doc: driver: samples: Update driver samples to use new Sphinx extension	2023-09-22 09:21:43 +02:00
sample.yaml	samples: drivers: auxdisplay requires a fixture to run on a platform	2023-06-28 15:20:00 +02:00

README.rst

.. zephyr:code-sample:: auxdisplay
   :name: Auxiliary display
   :relevant-api: auxdisplay_interface

   Output "Hello  World" to an auxiliary display.

Overview
********

This sample shows how to use the :ref:`auxiliary display driver <auxdisplay_api>`
by outputting a sample "Hello World" text to one.

Building and Running
********************

Note that this sample requires a board with an auxiliary display setup. A
sample overlay is provided for the `nucleo_f746zg` board fly-wired to a Hitachi
HD44780-compatible 20 character by 4 line display. See the overlay file
:zephyr_file:`samples/drivers/auxdisplay/boards/nucleo_f746zg.overlay` for
wiring configuration.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/auxdisplay
   :host-os: unix
   :board: nucleo_f746zg
   :goals: build flash
   :compact:

If successful, the display will show `Hello World from <board>`.