HardLabs

Spha rel12-hardware

sillevl·spha-rel12-hardware

Spha rel12-hardware PCB layout, top view — open source STM32 board by sillevl

About the Spha rel12-hardware PCB

Spha rel12-hardware is an open source STM32 PCB design by sillevl, published on GitHub. It is a 2-layer board measuring 207.5 × 86.5 mm, with 89 components from 40 distinct parts.

Its main chip is the STM32L432KCUx, from the STM32 family. Other key parts include the TCA9555RTWR, ULN2803A, SN65HVD230, MCP1825S and LM2594M-5.0. By type, the board carries 19 capacitors, 18 connectors, 10 ICs, 7 resistors, 4 inductors and 3 diodes.

From the project

SPHA twelve-channel relay/light-output module.

SPHA twelve-channel relay/light-output module.

- relay-module-light.kicadpro — KiCad project - relay-module-light.kicadsch — top-level schematic - relay-module-light.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 rel12-hardware

TCA9555RTWRSTM32L432KCUxULN2803ASN65HVD230MCP1825SLM2594M-5.0LMR23610PESD2CANAT24CS32-STUM

Spha rel12-hardware bill of materials (BOM)

89 components, 40 distinct parts.

QtyPartRefs
1
TCA9555RTWR
U1
1
STM32L432KCUx
U2
2
ULN2803A
U3, U9
1
SN65HVD230
U4
1
MCP1825S
U5
1
LM2594M-5.0
U6
1
LMR23610
U7
1
PESD2CAN
U8
1
AT24CS32-STUM
U10
1
Crystal
Y1
1
Conn_01x03
J1
1
Conn_ARM_JTAG_SWD_10
J2
1
Conn_02x05_Odd_Even
J3
12
Screw_Terminal_01x02
J5, J6, J7, J8, J9, J10, J12, J13 +4
1
Conn_01x02
J11
2
Conn_01x02
J14, J15
1
BOOT0
BOOT1
12
G5RL-1
REL1, REL2, REL3, REL4, REL5, REL6, REL7, REL8 +4
1
RESET
RESET1
12
Varistor
RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8 +4
Show 20 more
QtyPartRefs
1
POWER
LED1
1
D_TVS
D17
1
D
D18
1
1N5822
D19
2
Ferrite_Bead
FB1, FB2
1
100uH
L1
1
47uH
L2
5
100nF
C1, C2, C6, C10, C15
2
27uF
C3, C8
1
2.2uF
C4
4
100nF
C5, C25, C26, C27
1
75pF
C7
3
10uF
C9, C23, C29
2
6pF
C21, C22
1
10u/50V
C28
1
243k
R1
1
22.1k
R2
3
10K
R34, R36, R37
1
1K
R35
1
10K
R38

Spha rel12-hardware design files

The KiCad project lives in the sillevl/spha-rel12-hardware repository on GitHub; these links point at the commit this page was built from.

Spha rel12-hardware: common questions

What microcontroller does the Spha rel12-hardware use?

The Spha rel12-hardware is built around the STM32L432KCUx, from the STM32 family.

How big is the Spha rel12-hardware PCB?

The Spha rel12-hardware measures 207.5 × 86.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spha rel12-hardware?

89 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Spha rel12-hardware design files?

From the sillevl/spha-rel12-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 rel12-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 rel12-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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