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24d71431e9
Add a 'U' suffix to values when computing and comparing against unsigned variables. Signed-off-by: Patrik Flykt <patrik.flykt@intel.com> |
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| CMakeLists.txt | ||
| prj.conf | ||
| README.rst | ||
| sample.yaml | ||
.. _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/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.