HardLabs

Wearables v2

ray4477·Senior-design-fit-ml·wearable_v1_hw/wearables_v2/wearables_v2.kicad_pcb

Wearables v2 PCB layout, top view — open source STM32 board by ray4477

About the Wearables v2 PCB

Wearables v2 is an open source STM32 PCB design by ray4477, published on GitHub under the MIT license. It is a 2-layer board measuring 40.3 × 40 mm, with 47 components from 38 distinct parts.

Its main chip is the STM32WB05KZV6TR, from the STM32 family. Other key parts include the TPS7A0228PDBVR, STM32WB55RGVX, BMI270, MCP73831-2-MC and 2450AT18A100E. By type, the board carries 11 capacitors, 8 resistors, 6 ICs, 6 test points, 4 diodes and 3 connectors.

It belongs with the wearables designs in this gallery.

From the project

dance wearables

Main components on the Wearables v2

STM32WB05KZV6TRTPS7A0228PDBVRSTM32WB55RGVXBMI270MCP73831-2-MC2450AT18A100E

Wearables v2 bill of materials (BOM)

47 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32WB05KZV6TR
IC1
1
TPS7A0228PDBVR
IC2
1
STM32WB55RGVX
DLF162500LT-5028A1
U1
1
BMI270
2450AT18A100E
U2
1
MCP73831-2-MC
BMI270
U3
1
2450AT18A100E
MCP73831-2-MC
U5
1
Motor_DC
M1
1
PMOS
Q1
1
S8050
Q2
1
ABM10W-32.0000MHZ-8-B1U-T3
Y1
1
Crystal
Y2
1
217175-0001
J1
1
USB4105-GF-A
Conn_01x03
J2
1
CONN_01X03
Conn_01x04
J3
1
Battery_Cell
BT1
1
Reset
SW1
1
SW_NIDEC_CAS-120A1
SW_Nidec_CAS-120A1
SW2
3
TestPoint
TP1, TP2, TP3
3
TestPoint
TP4_i2c_sda1, TP5_i2c_scl1, TP6_haptic1
1
D_Schottky
D1
Show 18 more
QtyPartRefs
2
LED
D2, D3
1
1N4148
D4
1
2.7NH
2.7nH
L1
2
10P
10p
C1, C2
4
0.1UF
0.1uF
C3, C7, C10, C11
1
0.1UF
0.8pF
C4
1
0.8PF
0.3pF
C5
1
0.3PF
0.1uF
C6
1
0.1UF
4.7uF
C8
1
0.1uF
C9
1
5.1K
10k
R1
1
5.1K
R_Variable
R2
1
10K
10k
R3
1
4.7K
5.1k
R4
1
10K
5.1k
R5
1
4.7K
300
R6
1
10K
300
R7
1
4.7
2k
R8

Wearables v2 design files

The KiCad project lives in the ray4477/Senior-design-fit-ml repository on GitHub; these links point at the commit this page was built from.

Wearables v2: common questions

What microcontroller does the Wearables v2 use?

The Wearables v2 is built around the STM32WB05KZV6TR, from the STM32 family.

How big is the Wearables v2 PCB?

The Wearables v2 measures 40.3 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wearables v2?

47 components, from 38 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 Wearables v2 design files?

From the ray4477/Senior-design-fit-ml 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 Wearables v2 design in my own project?

Yes, under the terms of its MIT license, which ray4477 chose for the repository.

Can I test firmware for the Wearables v2 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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