2 layers142.5 × 106.4 mm
2 layers12.1 × 33.3 mm
PICO
tyrobee/PICO-KEYThis passkey PICO KEY is made so that the user can login without using a password. Using the picokeys firmware for raspberry pi microcontrollers, it is pretty secure(FIDO2) and fun to use.
- Size
- 12.1 × 33.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 54
- Pads
- 147
- Tracks, vias
- 197, 50
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Apr 2026
- Updated
- 10 Apr 2026
Overview
PICO is an open-source printed circuit board by tyrobee, from the tyrobee/PICO-KEY repository on GitHub. It is a 2-layer board of 12.1 × 33.3 mm with 34 parts on 54 nets, routed with 197 tracks and 50 vias.
Its parts include 21 capacitors, 6 resistors, 2 ICs, 1 diode and 1 connector. It belongs with the RP2040 and RP2350 boards of this library.
README
README.mdPICO-KEY
This passkey PICO KEY is made so that the user can login without using a password. Using the picokeys firmware for raspberry pi microcontrollers, it is pretty secure(FIDO2) and fun to use. Even though it has a small form factor, it carries one button and a white LED - enough for passwordless login and some custom HID stuff.
SCHEMATICS
PCB
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0402_1005Metric | C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17 |
| 6 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C6, C18, C21 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R4, R5, R6 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C19, C20 |
| 2 | 27R | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 33p | Capacitor_SMD:C_0402_1005Metric | C4, C5 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | AOTA | easyeda2kicad:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | RP2350A-QFN60 | user_imported_devices:RP2350A_QFN-60_EP_7.75x7.75_Pitch0.4mm | U1 |
| 1 | SW_Push | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW1 |
| 1 | TLV75512PDQNR | easyeda2kicad:X2SON-4_L1.0-W1.0-P0.65-TL-EP | U2 |
| 1 | USB_A | user_imported_devices:USBPCB | J1 |
Questions
How big is the PICO PCB?
It measures 12.1 × 33.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PICO use?
34 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PICO KiCad files?
From the tyrobee/PICO-KEY repository on GitHub, at the commit this page was made from: the board is Kicad/PICO.kicad_pcb and its schematic Kicad/PICO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PICO design in my own project?
Its repository states no licence, so its author keeps all rights: ask tyrobee before reusing the design.
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