.. _microbit_sound:
BBC micro:bit sound
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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:
.. code-block:: console
$ cd samples/boards/microbit/sound
$ make
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.
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