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.
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