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Spha btni hardware

sillevl·spha-btni-hardware

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

About the Spha btni hardware PCB

Spha btni hardware is an open source STM32 PCB design by sillevl, published on GitHub. It is a 2-layer board measuring 103 × 86.5 mm, with 112 components from 33 distinct parts.

Its main chip is the STM32L432KCUx, from the STM32 family. Other key parts include the TCA9555RTWR, AT24CS32-STUM, SN65HVD230, MCP1825S and LM2594M-5.0. By type, the board carries 38 resistors, 29 capacitors, 19 diodes, 12 connectors, 7 ICs and 3 inductors.

From the project

SPHA 16-channel input module with microcontroller, input/output circuitry, and CAN connectivity.

SPHA 16-channel input module with microcontroller, input/output circuitry, and CAN connectivity.

- input-16--module.kicadpro — KiCad project - input-16--module.kicadsch — top-level schematic - input-16--module.kicadpcb — PCB layout - Additional .kicadsch files — hierarchical schematic sheets - 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 btni hardware

TCA9555RTWRSTM32L432KCUxAT24CS32-STUMSN65HVD230MCP1825SLM2594M-5.0PESD2CAN

Spha btni hardware bill of materials (BOM)

112 components, 33 distinct parts.

QtyPartRefs
1
TCA9555RTWR
U1
1
STM32L432KCUx
U2
1
AT24CS32-STUM
U3
1
SN65HVD230
U4
1
MCP1825S
U5
1
LM2594M-5.0
U6
1
PESD2CAN
U7
1
Crystal
Y1
1
Conn_01x03
J1
1
Conn_ARM_JTAG_SWD_10
J2
1
Conn_02x05_Odd_Even
J3
6
Conn_01x03
J5, J6, J7, J8, J9, J10
1
Conn_01x02
J11
2
Conn_01x02
J14, J15
1
BOOT0
BOOT1
1
RESET
RESET1
1
POWER
LED1
16
P6SMB6.8A
D1, D2, D3, D4, D5, D6, D7, D8 +8
1
D_TVS
D17
1
D
D18
Show 13 more
QtyPartRefs
1
D_Schottky
D19
2
Ferrite_Bead
FB1, FB2
1
100uH
L1
5
100nF
C1, C2, C15, C18, C30
19
100nF
C3, C4, C5, C6, C7, C8, C9, C10 +11
2
6pF
C21, C22
2
10uF
C23, C29
1
10u/50V
C28
16
470R
R1, R2, R3, R4, R5, R6, R7, R8 +8
17
10K
R17, R18, R19, R20, R21, R22, R23, R24 +9
1
10R
R33
3
10k
R34, R36, R37
1
1K
R35

Spha btni hardware design files

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

Spha btni hardware: common questions

What microcontroller does the Spha btni hardware use?

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

How big is the Spha btni hardware PCB?

The Spha btni hardware measures 103 × 86.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spha btni hardware?

112 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the Spha btni hardware design files?

From the sillevl/spha-btni-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 btni 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 btni 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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