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LIPS enables users with mobility issues to control computers via sip-and-puff gestures using hall-effect and pressure sensors. The system supports four-button mouse emulation and macro commands through long and short breath pulses. It runs on a CH552 microcontroller via a webserial portal and is available for free on GitHub with KiCAD and STL files. The hardware costs a few percent of commercial medical device prices and offers full open-source access to design and code.
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