zephyr

History

Martí Bolívar 0156b6c185 samples: fade_led: cleanups and fixups Align the sample and its documentation with the other basic samples. Adjust the fade algorithm so that it looks better and takes less time to verify by taking 2.5 seconds instead of 10. Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>		2020-05-13 19:51:01 +02:00
..
src	samples: fade_led: cleanups and fixups	2020-05-13 19:51:01 +02:00
CMakeLists.txt	cmake: use find_package to locate Zephyr	2020-03-27 16:23:46 +01:00
README.rst	samples: fade_led: cleanups and fixups	2020-05-13 19:51:01 +02:00
prj.conf	…
sample.yaml	tests: fix test identifiers	2019-12-09 15:53:44 -05:00

README.rst

.. _fade-led-sample:

Fade LED
########

Overview
********

This application "fades" a LED using the :ref:`PWM API <pwm_api>`.

The LED starts off increases its brightness until it is fully or nearly fully
on. The brightness then decreases until the LED is off, completing on fade
cycle. Each cycle takes 2.5 seconds, and the cycles repeat forever.

Requirements and Wiring
***********************

This sample has the same requirements and wiring considerations as the
:ref:`pwm-blinky-sample`.

Building and Running
********************

To build and flash this sample for the :ref:`nrf52840dk_nrf52840`:

.. zephyr-app-commands::
   :zephyr-app: samples/basic/blink_led
   :board: nrf52840dk_nrf52840
   :goals: build flash
   :compact:

Change ``nrf52840dk_nrf52840`` appropriately for other supported boards.

After flashing, the sample starts fading the LED as described above. It also
prints information to the board's console.