This sample controls 16 LEDs connected to an LP3943 driver, in a continuous pattern of turning them on one at a time (at a one second interval) until they're all on, and then turning them off in reverse order.
The :ref:`96b_neonkey` board has an LP3943 driver and 16 LEDs on board, so we'll use this board for our example.
Build the application for the :ref:`96b_neonkey` board, which has an LP3943 driver included.
.. zephyr-app-commands:: :zephyr-app: samples/drivers/led_lp3943 :board: 96b_neonkey :goals: build :compact:
For flashing the application, refer to the Flashing section of the :ref:`96b_neonkey` board documentation.
When you connect to the board's serial console, you should see the following output in addition to the LED pattern:
***** BOOTING ZEPHYR OS v1.11.99 *****
[general] [INF] main: Found LED device LP3943
[general] [INF] main: Displaying the pattern