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2981fb6 · · Nov 11, 2025

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YetAnotherAuthKey

A Raspberry Pi RP2354 based PCB that can be flashed with the pico-fido firmware to act as a security key similar to Yubikey, because Yubikeys are expensive and I'm broke.

Made for Hack Club Blueprint

KiCad 9 format, all of the symbol/footprint libraries should be included in the repo.

RP2350 and related components symbols/footprints were obtained from Raspberry Pi.

image image image

LCSC bom (most of these have MOQs)

Id Designator Footprint Quantity Designation LCSC Part Number Ext Price USD
1 C8,C12,C10,C11,C17,C15,C19,C18,C14,C16,C13 C_0402_1005Metric 11 100n C1525 0.12
2 C1,C2 C_0603_1608Metric 2 10u C19702 0.29
3 SW1 SW_Push_SPST_NO_Alps_SKRK 1 SW_Push C115357 0.64
4 C6,C9,C7,C5 C_0402_1005Metric 4 4.7u C368809 0.31
5 U2 SOT-23 1 MCP1700x-330xxTT C39051 1.98
6 R3,R2 R_0402_1005Metric 2 27 C138021 0.07
7 Y1 Crystal_SMD_3225-4Pin_3.2x2.5mm 1 ABM8-272-T3 C20625731 1.77
8 J1 USB_A_Molex_48037-2200_Horizontal 1 USB_A C2681564 0.65
9 L1 C_0402_1005Metric 1 3.3u C51412 0.9
10 R4,R5 R_0402_1005Metric 2 1k C106235 0.06
11 R6 R_0402_1005Metric 1 33 C138002 0.07
12 U1 RP2350-QFN-60-1EP_7x7_P0.4mm_EP3.4x3.4mm_ThermalVias 1 RP2350_60QFN C41378174 2.49
13 C3,C4 C_0402_1005Metric 2 15p C86285 0.29

Total: 9.64 USD

PCB: 14.45 mm* 34.35 mm, green soldermask, leadfree HASL - 3.3 USD + 3 USD stencill

Total: 16 USD + shipping

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