This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

LP5569 9-channel LED controller


This sample controls 9 LEDs connected to an LP5569 driver. The sample turns all LEDs on and switches all LEDs off again within a one second interval.

Building and Running

Build the application for the nRF52840 DK board, and connect a LP5569 LED controller on the bus I2C0 at the address 0x32.

west build -b nrf52840dk/nrf52840 samples/drivers/led_lp5569

For flashing the application, refer to the Flashing section of the nRF52840 DK board documentation.

*** 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 ..