HardLabs

PHYLAX

ta007403·PHYLAX

PHYLAX PCB layout, top view — open source STM32 board by ta007403

About the PHYLAX PCB

PHYLAX is an open source STM32 PCB design by ta007403, published on GitHub. It is a 2-layer board measuring 60.5 × 95 mm, with 43 components from 29 distinct parts.

Its main chip is the STM32F205RET6, from the STM32 family. Other key parts include the MCP1703AT-3302E/CB and SX1308. By type, the board carries 21 capacitors, 9 resistors, 3 ICs, 3 diodes, 2 switches and 1 crystal.

From the project

PHYLAX (Greek φύλαξ, "guardian") is an open-source, Bitcoin-only hardware wallet built around a simple idea: no black-box chips, no wireless radios, no telemetry, and firmware you can read and verify yourself. This repository contains the KiCad hardware design files for the PHYLA

PHYLAX (Greek φύλαξ, "guardian") is an open-source, Bitcoin-only hardware wallet built around a simple idea: no black-box chips, no wireless radios, no telemetry, and firmware you can read and verify yourself. This repository contains the KiCad hardware design files for the PHYLAX Version 3 board (square button variant).

- Zero black-box chips — no proprietary secure element; every component is one you can trace and verify. - Fully open firmware — released under GPL v3. - Bitcoin-only — no altcoins, no unnecessary attack surface. - No wireless radios, no telemetry — the device only talks…

Main components on the PHYLAX

MCP1703AT-3302E/CBSTM32F205RET6SX1308

PHYLAX bill of materials (BOM)

43 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP1703AT-3302E/CB
MCP1703AT-3302E_CB
IC1
1
STM32F205RET6
IC2
1
SX1308
SX(硕芯科技)
U1
1
ABMM2-8.000MHZ-E2-T
Y1
1
FH19C-24S-0.5SH(10)
FH19C-24S-0.5SH_10_
J2
1
MF-MSMF050-2
F2
2
SKHCBGA010
S1, S3
1
USB4215-03-A
GCT
USB1
1
PRTR5V0U2X,215
D1
1
BAT60JFILM
D2
1
1N5819HW-7-F
DIODES(美台)
D3
1
XAL4040-103MEC
Coilcraft(线艺)
L2
1
1nF 200V X7R 0603
C1
2
22pF X7R 0402
C2, C3
9
C14663
100nF X7R 25V 0603
C4, C8, C9, C10, C11, C12, C17, C20 +1
3
1uF X7R 0603
C5, C6, C16
1
4.7uF X7R 0603
C7
2
2.2uF X7R 0603
C13, C14
1
4.7uF X7R 25V 0805
C15
1
22uF X5R 25V 1206
C21
Show 9 more
QtyPartRefs
1
10uF X7R 16V 0805
C23
2
C852856
5.1k +-1% 0402
R1, R2
1
C313710
22R +-1% 0603
R3
1
C2686485
22R +-1% 0402
R4
1
C22356470
1M +-1% 0603
R5
1
C2909316
12k +-1% 0402
R7
1
C23263
910k +-1% 0603
R9
1
C2974031
191k +-1% 0603
R10
1
C98220
10k +-1% 0603
R11

PHYLAX design files

The KiCad project lives in the ta007403/PHYLAX repository on GitHub; these links point at the commit this page was built from.

PHYLAX: common questions

What microcontroller does the PHYLAX use?

The PHYLAX is built around the STM32F205RET6, from the STM32 family.

How big is the PHYLAX PCB?

The PHYLAX measures 60.5 × 95 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PHYLAX?

43 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the PHYLAX design files?

From the ta007403/PHYLAX repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the PHYLAX design in my own project?

The repository has no license, so all rights stay with ta007403. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the PHYLAX without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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