zephyr

History

Carles Cufi 9b04a99243 timeouts: Port BBC micro:bit to the new timeout API Port the BBC micro:bit display driver to the new timeout API exposed by the kernel. Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>		2020-05-07 11:01:55 +02:00
..
src	timeouts: Port BBC micro:bit to the new timeout API	2020-05-07 11:01:55 +02:00
CMakeLists.txt	cmake: use find_package to locate Zephyr	2020-03-27 16:23:46 +01:00
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _microbit_sound:

BBC micro:bit sound
###################

Overview
********

This is simple example demonstrating how to use a piezo buzzer connected
to port P0 on the edge connector of the BBC micro:bit board. Note that
the buzzer is not part of the main micro:bit board, rather it it needs
to be separately acquired and connected. A well working example is the
MI:Power board that has a piezo buzzer in addition to a coin-cell
battery. Resellers of this board can be fairly easily found using online
search.

Building
********

The sample can be built as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/boards/bbc_microbit/sound
   :board: bbc_microbit
   :goals: build
   :compact:

Sample Output
=============

This sample outputs sounds through a connected piezo buzzer based on
button presses of the two main buttons. For each press the current
output frequency will be printed on the 5x5 LED display.