decided to leverage this feature to make his custom PCB (the same design used in his one-key keyboard project) fit just like a factory component. It turns out that industrial push buttons have standardized components which can be assembled in an almost LEGO-like manner, with components mixed and matched to provide different switch actions, light indicators, and things of that nature. His custom PCB mates to the factory parts perfectly, and the USB cable between the button and the computer even fits through the button enclosure’s lead hole. He could have hacked something together in any number of ways, but instead he decided to create a truly elegant solution. ’s project sounds perfectly straightforward: have a big industrial-style push button act as a one-key USB keyboard.
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