You could use any of the Arduino boards with native USB (Leonardo is one, but there are probably lots of them) to turn your key into a USB keyboard (which send a spacebar key down/up event when you press/release the key). I think they mentioned such a project on the Ham Radio Workbench podcast.
I made a similar project to connect an NES controller to a computer by emulating a keyboard: https://gist.github.com/raek/e8ee0b7e0801ef27c477c4333ec3e066
That example could be stripped down to only check a single bit instead of reading eight bits from a shift register
Rasmus SA5RJS /
npub133…hfazx
2024-09-22 19:21:56
in reply to nevent1q…ww02
Author Public Key
npub133kx3vtsccvrn4uxjn85wacm45uqglre8qz7z7tr86p6lhy0whsqmhfazxPublished at
2024-09-22 19:21:56Event JSON
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"content": "You could use any of the Arduino boards with native USB (Leonardo is one, but there are probably lots of them) to turn your key into a USB keyboard (which send a spacebar key down/up event when you press/release the key). I think they mentioned such a project on the Ham Radio Workbench podcast. \n\nI made a similar project to connect an NES controller to a computer by emulating a keyboard: https://gist.github.com/raek/e8ee0b7e0801ef27c477c4333ec3e066\n\nThat example could be stripped down to only check a single bit instead of reading eight bits from a shift register",
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