.. 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 :zephyr:board:`nrf52840dk` 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
:zephyr:board:`nrf52840dk` 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