Show HN: Mac hardware toys – pipe your accelerometer into your keyboard lights(github.com)

Show HN: Mac hardware toys – pipe your accelerometer into your keyboard lights

https://github.com/pirate/mac-hardware-toys

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Inspired by the recent post where Olivier Bourbonnais figured out how to read the private accelerometer APIs on Apple Silicon macs: https://github.com/olvvier/apple-silicon-accelerometer

I created a set of CLI tools that let you pipe mac sensor data around like modular synth audio. Sensor data is outputted via stdout as a mono audio signal, and then it can be piped through filters and sent to outputs like your speaker, screen-brightness, keyboard-brightness, a TUI visualizer, and more.

Some examples of silly things that are possible:

    lid-angle | speaker  # sounds like a theremin as you move th elid

    sudo accelerometer | metronome | screen-brightness  # tap on your palmrest and it will flash to the beat

    microphone | metronome | speaker  # play a tone in sync with whatever beat is audible to the microphone (syncs the phase too)

    microphone | bandpass 0.4 6 | volume-shift 2 | tee >(keyboard-brightness) | visualizer

    sudo gyroscope | sudo fan-speed

Lots more here: https://github.com/pirate/mac-hardware-toys