applications/{audioutils,examples}: Morse player#3653
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This commit adds the Morsey library (Apache 2.0 licensed) to be downloaded from an external repository so it can be used in NuttX applications. This library parses ASCII text into Morse code marks to be played by a user-implemented 'transmit' function (i.e. over an LED, buzzer, audio sink, etc.). Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
Adds an example application leveraging the Morsey library for transmitting Morse code, either to the console (debug) or to GPIO devices for now as the two supported sinks. Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
linguini1
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acassis,
cederom,
jerpelea,
michallenc,
raiden00pl,
simbit18 and
xiaoxiang781216
July 21, 2026 01:18
xiaoxiang781216
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Jul 21, 2026
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Summary
I wrote a Morse code library based on the structure used by
rtttl-candincluded it into the NuttX build systems as a library.
Then, I created a command-line application that plays a user string as Morse
code, either to the console or over a GPIO device (for now, more devices can be
added later).
There is a twin PR to the kernel with documentation and
sim:txmorseconfig: apache/nuttx#19493Here are the commits:
examples/txmorse: Example application for transmitting Morse code
Adds an example application leveraging the Morsey library for
transmitting Morse code, either to the console (debug) or to GPIO
devices for now as the two supported sinks.
audioutils/morsey: Add the Morsey library
This commit adds the Morsey library (Apache 2.0 licensed) to be
downloaded from an external repository so it can be used in NuttX
applications.
This library parses ASCII text into Morse code marks to be played by a
user-implemented 'transmit' function (i.e. over an LED, buzzer, audio
sink, etc.).
Impact
Morse code can be transmitted easily on NuttX.
Testing
Tested the application and library by transmitting to the console. I also put
the application on my Peanut Altimeter
and had it play Morse code over the buzzer. I confirm that it sounds correct,
translation works and that the transmission speed configuration works.