2df905dc2c
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>
40 lines
1.2 KiB
ReStructuredText
40 lines
1.2 KiB
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.. zephyr:code-sample:: lp5569
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:name: LP5569 9-channel LED controller
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:relevant-api: led_interface
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Control 9 LEDs connected to an LP5569 driver chip.
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Overview
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********
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This sample controls 9 LEDs connected to an LP5569 driver. The sample turns
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all LEDs on one by one with a 1 second delay between each. Then it fades all
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LEDs until they are off again. Afterwards, it turns them all on at once, waits
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a second, and turns them all back off.
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This pattern then repeats indefinitely.
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Building and Running
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********************
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Build the application for the :ref:`nrf52840dk_nrf52840` board, and connect
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a LP5569 LED controller on the bus I2C0 at the address 0x32.
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/led/lp5569
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:board: nrf52840dk/nrf52840
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:goals: build
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:compact:
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For flashing the application, refer to the Flashing section of the
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:ref:`nrf52840dk_nrf52840` board documentation.
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.. code-block:: none
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*** Booting Zephyr OS build zephyr-v3.3.0 ***
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[00:00:00.361,694] <inf> app: Found LED device lp5569@32
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[00:00:00.361,694] <inf> app: Testing 9 LEDs ..
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References
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**********
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- LP5569 Datasheet: https://www.ti.com/product/de-de/LP5569
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