HardLabs

Sympetrum V2

borgel·sympetrum-v2·Hardware/FF1.1/sympetrum-v2 FF1.1.kicad_pcb

Sympetrum V2 PCB layout, top view — open source STM32 board by borgel

About the Sympetrum V2 PCB

Sympetrum V2 is an open source STM32 PCB design by borgel, published on GitHub under the MIT license. It is a board measuring 98.8 × 77.4 mm, with 60 components from 24 distinct parts.

Its main chip is the STM32F030K6T6, from the STM32 family. Other key parts include the TSSP58P38, APA102_5050 and AAT1217ICA-3.3-T1. By type, the board carries 20 jumpers, 13 ICs, 11 capacitors, 4 diodes, 4 resistors and 1 switch.

It belongs with the wearables designs in this gallery.

From the project

A communicative piece of wearable electronics.

If you'd rather do things the hard way you can directly upload the BOM to Digikey or a tool like Octopart which will make it easy to order from a variety of suppliers.

To recompile the firmware for this CPU edit the Makefile and swap the CPU variable by commenting out the line for STM32F030x6 and in the one for STM32F051x8.

The firmware is "version 4" and is tagged as a release on GitHub (and in the Firmware directory).

Main components on the Sympetrum V2

STM32F030K6T6TSSP58P38APA102_5050AAT1217ICA-3.3-T1

Sympetrum V2 bill of materials (BOM)

60 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F030K6T6
STMicroelectronics
U101
1
TSSP58P38
Vishay
U102
10
APA102_5050
U201, U202, U203, U204, U205, U206, U207, U208 +2
1
AAT1217ICA-3.3-T1
AAT1217-3.3
Skyworks Solutions
U301
1
BCAAAPC_+_BCAAPC
B301
2
Hole_5mm
H101, H102
20
Jumper_NO_Small
JP201, JP202, JP203, JP204, JP205, JP206, JP207, JP208 +12
1
CONN_01x04
J_PROG101
1
CONN_01x02
J_PWR301
1
CONN_01x03
J_UART101
1
DFU
SW101
1
USER_LED
D101
2
IR25-21C/TR8
Everlight
D102, D103
1
PTH_LED
D104
1
LQH3NPN4R7NJ0L
4.7uH
Murata
L301
3
08055C104KAT2A
0.1uF
C101, C104, C105
1
CC0805KRX7R9BB103
10nF
Yageo
C102
1
CC0805KKX7R7BB105
1uF
Yageo
C103
3
CL21F475ZPFNNNE
4.7uF
Samsung
C106, C301, C302
3
CL21A226MQQNNNG
22uF
Samsung
C201, C202, C203
Show 4 more
QtyPartRefs
1
RC0805JR-0710KL
10k
Yageo
R101
1
RC0805JR-070RL
0R
Yageo
R102
1
RC0805FR-0736RL
36R
Yageo
R103
1
RC0805FR-071ML
1M
Yageo
R301

Sympetrum V2 design files

The KiCad project lives in the borgel/sympetrum-v2 repository on GitHub; these links point at the commit this page was built from.

Sympetrum V2: common questions

What microcontroller does the Sympetrum V2 use?

The Sympetrum V2 is built around the STM32F030K6T6, from the STM32 family.

How big is the Sympetrum V2 PCB?

The Sympetrum V2 measures 98.8 × 77.4 mm and is 1.6 mm thick.

How many components are on the Sympetrum V2?

60 components, from 24 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 Sympetrum V2 design files?

From the borgel/sympetrum-v2 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Sympetrum V2 design in my own project?

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

Can I test firmware for the Sympetrum 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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