| .. zephyr:code-sample:: lp3943 |
| :name: LP3943 RGBW LED |
| :relevant-api: led_interface |
| |
| Control up to 16 RGBW LEDs connected to an LP3943 driver chip. |
| |
| Overview |
| ******** |
| |
| 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. |
| |
| Requirements |
| ************ |
| |
| The :ref:`96b_neonkey` board has an LP3943 driver and 16 LEDs on board, |
| so we'll use this board for our example. |
| |
| Building and Running |
| ******************** |
| |
| 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: |
| |
| .. code-block:: none |
| |
| ***** BOOTING ZEPHYR OS v1.11.99 ***** |
| [general] [INF] main: Found LED device LP3943 |
| [general] [INF] main: Displaying the pattern |
| |
| References |
| ********** |
| |
| - LP3943: http://www.ti.com/lit/ds/snvs256d/snvs256d.pdf |
