HardLabs

Family lace

SomniumUrani·secure-family·hardware/family-lace/family-lace.kicad_pcb

Family lace PCB layout, top view — open source STM32 board by SomniumUrani

About the Family lace PCB

Family lace is an open source STM32 PCB design by SomniumUrani, published on GitHub. It is a 4-layer board measuring 46.5 × 55.5 mm, with 51 components from 26 distinct parts.

Its main chip is the STM32U031C6U6, from the STM32 family. Other key parts include the RAK3172-9-SM-NI, TP4056-42-ESOP8, TPS7A0233DBVR, XC6206P282MR and TPS22917LDBV. By type, the board carries 20 capacitors, 15 resistors, 7 ICs, 3 switches, 2 connectors and 2 diodes.

It belongs with the rf & radio and wearables designs in this gallery.

From the project

A heart rate monitorization system based on LoRa signals for health alarms.

A solution for monitoring your beloved ones with low cost and reliable connection independent from saturated and targeted frequencies and proprietary software.

An entrepreneurship project for a university incubation program.

- [x] Mechanical - [x] PCB design - [ ] Software CANCELLED - [ ] Firmware CANCELLED

Family lace, from the project README
From the project README

Main components on the Family lace

RAK3172-9-SM-NISTM32U031C6U6TP4056-42-ESOP8TPS7A0233DBVRXC6206P282MRTPS22917LDBVSN74LVC1G08QDBVRQ1

Family lace bill of materials (BOM)

51 components, 26 distinct parts.

QtyPartRefs
1
RAK3172-9-SM-NI
U1
1
STM32U031C6U6
U2
1
TP4056-42-ESOP8
U3
1
TPS7A0233DBVR
U4
1
XC6206P282MR
U5
1
TPS22917LDBV
U6
1
SN74LVC1G08QDBVRQ1
U7
1
GME12864-110
J1
1
USB_C_Receptacle_PowerOnly_6P
J2
1
Battery
BT1
1
102-CPI-1375-80T-ND
BZ1
2
108-PTS645SH70SMTR92LFS-ND
SW1, SW3
1
SW_Wuerth_450301014042
SW2
2
LED
D1, D2
3
10nF
C1, C19, C20
5
100nF
C2, C3, C4, C7, C12
8
1uF
C5, C9, C10, C11, C14, C15, C16, C17
2
10uF
C6, C8
1
2.2uF
C13
1
0.1uF
C18
Show 6 more
QtyPartRefs
4
10k
R1, R9, R12, R13
4
1k
R2, R3, R10, R11
1
R
R4
3
4k7
R5, R6, R7
1
560k
R8
2
5k1
R14, R15

Family lace design files

The KiCad project lives in the SomniumUrani/secure-family repository on GitHub; these links point at the commit this page was built from.

Family lace: common questions

What microcontroller does the Family lace use?

The Family lace is built around the STM32U031C6U6, from the STM32 family.

How big is the Family lace PCB?

The Family lace measures 46.5 × 55.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Family lace?

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

Where can I download the Family lace design files?

From the SomniumUrani/secure-family repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Family lace design in my own project?

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

Can I test firmware for the Family lace 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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