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Emil Dahl Juhl 2df905dc2c samples: led: lp5569: demo write_channels Add a simple demonstration of the led_write_channels api on the lp5569 driver sample. The demonstration simply turns on all of the channels with a single call to led_write_channels. Then the same is done for turning off the channels. Thus, it doesn't add much visually, but it shows the usage of the api. Signed-off-by: Emil Dahl Juhl <emdj@bang-olufsen.dk>		2024-11-26 00:12:37 +01:00
..
boards
src
CMakeLists.txt
prj.conf
README.rst
sample.yaml

README.rst

.. zephyr:code-sample:: lp5569
   :name: LP5569 9-channel LED controller
   :relevant-api: led_interface

   Control 9 LEDs connected to an LP5569 driver chip.

Overview
********

This sample controls 9 LEDs connected to an LP5569 driver. The sample turns
all LEDs on one by one with a 1 second delay between each. Then it fades all
LEDs until they are off again. Afterwards, it turns them all on at once, waits
a second, and turns them all back off.
This pattern then repeats indefinitely.

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

Build the application for the :ref:`nrf52840dk_nrf52840` board, and connect
a LP5569 LED controller on the bus I2C0 at the address 0x32.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/led/lp5569
   :board: nrf52840dk/nrf52840
   :goals: build
   :compact:

For flashing the application, refer to the Flashing section of the
:ref:`nrf52840dk_nrf52840` board documentation.

.. code-block:: none

  *** Booting Zephyr OS build zephyr-v3.3.0 ***
  [00:00:00.361,694] <inf> app: Found LED device lp5569@32
  [00:00:00.361,694] <inf> app: Testing 9 LEDs ..

References
**********

- LP5569 Datasheet: https://www.ti.com/product/de-de/LP5569