HardLabs

Spha btnu hardware

sillevl·spha-btnu-hardware

Spha btnu hardware PCB layout, top view — open source STM32 board by sillevl

About the Spha btnu hardware PCB

Spha btnu hardware is an open source STM32 PCB design by sillevl, published on GitHub. It is a 4-layer board measuring 29 × 29 mm, with 47 components from 26 distinct parts.

Its main chip is the STM32L432KCUx, from the STM32 family. Other key parts include the TLC59108xPW, SN65HVD230, TPS62175DQC, MCP1700-3302E_SOT23 and 24AA02-OT. By type, the board carries 16 capacitors, 14 resistors, 7 ICs, 3 connectors, 3 inductors and 2 diodes.

From the project

- spha-BTNU.kicadpro — KiCad project - spha-BTNU.kicadsch — top-level schematic - spha-BTNU.kicadpcb — PCB layout - models/` — project-specific 3D and mechanical models

- spha-BTNU.kicadpro — KiCad project - spha-BTNU.kicadsch — top-level schematic - spha-BTNU.kicadpcb — PCB layout - models/` — project-specific 3D and mechanical models

Open the .kicadpro` file in KiCad. The design includes files originating from an older KiCad workflow; review schematic links, footprints, design rules, zones, and manufacturing outputs after any conversion or upgrade.

Main components on the Spha btnu hardware

TLC59108xPWSTM32L432KCUxSN65HVD230TPS62175DQCMCP1700-3302E_SOT2324AA02-OTPESD2CAN

Spha btnu hardware bill of materials (BOM)

47 components, 26 distinct parts.

QtyPartRefs
1
TLC59108xPW
U1
1
STM32L432KCUx
U2
1
SN65HVD230
U3
1
TPS62175DQC
U4
1
MCP1700-3302E_SOT23
U5
1
24AA02-OT
U6
1
PESD2CAN
U7
1
Crystal
Y1
1
Conn_02x05_Odd_Even
J1
1
Conn_02x08_Top_Bottom
J2
1
Conn_01x04
J4
1
LED
LED1
1
D_TVS
D1
1
B5819W
D2
2
Ferrite_Bead_Small
FB1, FB2
1
10uH
L1
10
100nF
C1, C2, C5, C8, C9, C10, C13, C14 +2
2
6pF
C3, C4
1
100nF
C6
2
10uF
C11, C17
Show 6 more
QtyPartRefs
1
22uF
C12
10
10K
R1, R2, R4, R6, R7, R8, R9, R10 +2
1
1K
R3
1
200k
R12
1
787K
R14
1
150K
R15

Spha btnu hardware design files

The KiCad project lives in the sillevl/spha-btnu-hardware repository on GitHub; these links point at the commit this page was built from.

Spha btnu hardware: common questions

What microcontroller does the Spha btnu hardware use?

The Spha btnu hardware is built around the STM32L432KCUx, from the STM32 family.

How big is the Spha btnu hardware PCB?

The Spha btnu hardware measures 29 × 29 mm, has 4 copper layers and is 1.589 mm thick.

How many components are on the Spha btnu hardware?

47 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Spha btnu hardware design files?

From the sillevl/spha-btnu-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Spha btnu hardware design in my own project?

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

Can I test firmware for the Spha btnu hardware 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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