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A comment on Open source laser microphone picks up laptop keystrokes. Parent comment

Re:Open source laser microphone picks up laptop keystrokes by giancarlostoro on Tuesday August 13, 2024 @10:42AM (#41235952)
MakeyMakey from 2014? Would let you setup a gamepad you drew on paper with a pencil. Though it is wired, still impressive.

https://makeymakey.com/

https://www.bbc.com/news/technology-18303012

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