2 layers165.1 × 95.3 mm
Pico concole v2 daughter board
Crem2y/pico-console-v2-pcb
pico console v2 board (firmware : https://github.com/Crem2y/pico-console-v2)
232 parts1MIT
2 layers22 × 33 mm
Homemade security key
tobycm/homemade-security-key2DIY a security key! powered by a rp2350 for a pretty good security :D
- Size
- 22 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 64
- Pads
- 206
- Tracks, vias
- 294, 205
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Jul 2025
- Updated
- 25 Apr 2026
Overview
Homemade security key is an open-source printed circuit board by tobycm, from the tobycm/homemade-security-key repository on GitHub, published under the MIT licence. It is a 2-layer board of 22 × 33 mm with 46 parts on 64 nets, routed with 294 tracks and 205 vias.
It is built around the W25Q16JVSSIQ, ABM8-272-T3 and AOTA-B201610S3R3-101-T, with the B38G3RGB-10D0003H2U1930 and UP2-AH-1-TH among its other parts. Its parts include 19 capacitors, 9 resistors, 3 ICs, 2 connectors and 2 inductors. It belongs with the RP2350 boards of this library.
Main components
5
W25Q16JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
AOTA-B201610S3R3-101-T
0806115mΩ 2.1A 2.4A 3.3uH Molded inductor 0806 Molding Power Inductors ROHSAbraconPower Inductors
B38G3RGB-10D0003H2U1930
SMD_1.6X1.5mm-40℃~+85℃ 1.7V~2.3V、2.7V~3.45V、2.7V~3.45V 10mA 360mcd~900mcd Common Anode Red, Green, Blue SMD_1.6X1.5mm LED Indication - Discrete ROHShongqiguangLED Indication - Discrete
UP2-AH-1-TH
插件插件 D-Sub / VGA Connectors ROHSCUID-Sub / VGA Connectors
README
README.mdhomemade-security-key
DIY a security key! powered by a rp2350 for a pretty good security :D
with a nice 3d printed case and it is also easy to print, this key is hella nice for only 6$ each 🔥
the pcb is still well made tho, considerate thoughts have been put into the usb routing, and power delivery too!
3D Render
PCB
Case
| Type | Qty | Value |
|---|---|---|
| Capacitor | 1 | 10u |
| Capacitor | 10 | 100n |
| Capacitor | 1 | 1u |
| Capacitor | 1 | 22u |
| Capacitor | 4 | 4.7u |
| Capacitor | 2 | 18p |
| LED | 1 | B38G3RGB-10D0003H2U1930 |
| Connector | 1 | UP20-C-F-G-FL-1-P12-TR |
| Connector | 1 | UP2-AH-1-TH |
| Inductor | 1 | 4.7u |
| Inductor | 1 | AOTA-B201610S3R3-101-T |
| Resistor | 1 | 5.1k |
| Resistor | 2 | 27 |
| Resistor | 1 | 1k |
| Resistor | 1 | 10k |
| Resistor | 1 | 147 |
| Resistor | 3 | 33 |
| Button | 1 | PTS526SM15SMTR2 LFS |
| Buck regulator | 1 | AP63203WU-7 |
| Flash | 1 | W25Q16JVSS |
| MCU | 1 | RP2350A-QFN60 |
| Crystal | 1 | ABM8-272-T3 |
| PCB | 1 | |
| Stencil | 1 | |
| Solder paste | 1 | I already have |
Total cost: $64.78 USD
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C4, C5, C6, C7, C8, C9, C10, C11, C14 |
| 5 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3, TP4, TP5 |
| 4 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C13, C17, C18, C19 |
| 3 | 33 | Resistor_SMD:R_0402_1005Metric | R7, R8, R9 |
| 2 | 18p | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 147 | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | 22u | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 4.7u | HPC6045NC-4R7M:IND_HPC6045NC_TTA | L1 |
| 1 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | ABM8-272-T3 | ABM8_272_T3:XTAL_ABM8-272-T3 | Y1 |
| 1 | AOTA-B201610S3R3-101-T | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L2 |
| 1 | AP63203WU-7 | AP63203WU_7:AP63203WU-7_DIO | U1 |
| 1 | B38G3RGB-10D0003H2U1930 | B38G3RGB_10D0003H2U1930:LED_B38G3RGB-10D0003H2U1930 | D1 |
| 1 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad | H1 |
| 1 | RP2350A-QFN60 | RP2350_KiCad:RP2350A_QFN-60_EP_7.75x7.75_Pitch0.4mm | U3 |
| 1 | SW_Push | PTS526_SM15_SMTR2_LFS:SON4_PTS526 SM15 SMTR2 LFS_CNK | SW1 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | UP2-AH-1-TH | UP2_AH_1_TH:CUI_UP2-AH-1-TH | J2 |
| 1 | UP20-C-F-G-FL-1-P12-TR | UP20_C_F_G_FL_1_P12_TR:SAMESKY_UP20-C-F-G-FL-1-P12-TR | J1 |
| 1 | W25Q16JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U2 |
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Questions
How big is the Homemade security key PCB?
It measures 22 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Homemade security key use?
46 parts, built around the W25Q16JVSSIQ, ABM8-272-T3, AOTA-B201610S3R3-101-T and B38G3RGB-10D0003H2U1930. 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 Homemade security key KiCad files?
From the tobycm/homemade-security-key repository on GitHub, at the commit this page was made from: the board is homemade-security-key.kicad_pcb and its schematic homemade-security-key.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Homemade security key design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).