A hardware security like a YubiKey

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Main components

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Part NumberDescription
RP2350_60QFN
NCP1117-3.3_SOT2231A Low drop-out regulator, Fixed Output 3.3V, SOT-223
W25Q128JVS128Mb Serial Flash Memory, Standard/Dual/Quad SPI, SOIC-8

oKey schematic

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oKey board layout

oKey PCB render

Top PCB
Bottom PCB