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Add audio jack demo docs #33

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7 changes: 7 additions & 0 deletions README.md
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Expand Up @@ -35,3 +35,10 @@ exact steps). Two demos are provided:

The helper script `src/pi/run_serial_demo.sh` loads `g_serial` if needed
and launches the Python demo.

## Audio Jack Telemetry

An additional demo shows how to transmit sensor data through the Pi’s audio jack. See
`docs/audio_jack_demo.md` and the script `src/pi/audio_demo.py` for details on
connecting a TRRS cable and using the `minimodem` tool to send readings as audio
tones.
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