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TOTKey

This is the TOTKey, a tool that generates time-based one-time passwords (TOTPs) for 2-factor authentication. I don't always have my phone when I want to log into an account, so I built this. It's an RP2040-based #onboard PCB with a 128x32 OLED screen, a real-time clock, and a few buttons. The board runs CircuitPython, but it's all managed via WebSerial and a web interface at https://rivques.dev/random-raw-files/totkey.html.

CAD

The PCB design is on OSHWLab. The case CAD is on Onshape.

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A USB key for generating one-time passcodes.

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