HardLabs

Sympetrum v3

borgel·sympetrum-v3·Hardware/Badge/Sympetrum-V3 FF3.kicad_pcb

Sympetrum v3 PCB layout, top view — open source STM32 board by borgel

About the Sympetrum v3 PCB

Sympetrum v3 is an open source STM32 PCB design by borgel, published on GitHub under the CC-BY-NC-4.0 license. It is a 6-layer board measuring 98.6 × 92.4 mm, with 106 components from 35 distinct parts.

Its main chip is the STM32F051K8U6, from the STM32 family. Other key parts include the CAT24C512WI-GT3-DNP, TSOP75338WTT, IS31FL3236 and AAT1217-1.2. By type, the board carries 51 diodes, 18 resistors, 14 capacitors, 6 transistors, 5 ICs and 5 connectors.

It belongs with the wearables designs in this gallery.

From the project

The Dragonfly badge as seen at DEFCON26

If you're interested in keeping up to date with new versions, you can add your email here: https://goo.gl/forms/xGFPdRpdT4x1kmzG3 I'll send out (few) updates as I make progress towards whatever the next version is.

For a little more information, last year's was written up by Hackaday here.

This is a partial rewrite of the work done for DEFCON 25 (here).

If you have, there's a sequence around page 300 in which Miranda is first introduced to the possibility of using the drummers to find Nell. In this scene she attends a party in which the revellers wear colorful cloisonné dragonfly pins. As…

Main components on the Sympetrum v3

STM32F051K8U6CAT24C512WI-GT3-DNPTSOP75338WTTIS31FL3236AAT1217-1.2

Sympetrum v3 bill of materials (BOM)

106 components, 35 distinct parts.

QtyPartRefs
1
STM32F051K8U6
U101
1
CAT24C512WI-GT3-DNP
U102
1
TSOP75338WTT
U103
1
IS31FL3236
U201
1
AAT1217-1.2
U701
1
ALS-PT19-315C/L177/TR8
Q101
5
DMP3099L-7
Q102, Q301, Q401, Q501, Q601
1
CONN_UART
J101
1
CONN_SWD
J108
1
2x2-Shitty
J110
1
GS2
J114
1
GS2
J710
1
Keystone_2462
B701
2
Hole-4mm-NPTH
H101, H102
2
C&K-PTS645SM43SMTR92-LFS
SW101, SW102
1
JS102011SAQN
SW701
1
USR_LED-DNP
D101
2
IR25-21C/TR8
D102, D103
48
SX-3528-RGB-ANODE
D301, D302, D303, D304, D305, D306, D307, D308 +40
1
4.7uH
L701
Show 15 more
QtyPartRefs
3
100nF
C101, C102, C103
3
4.7uF
C104, C701, C702
2
1uF
C105, C201
1
10nF
C106
1
0.1uF
C202
4
22uF
C203, C204, C205, C206
2
4.7k
R101, R103
1
3k
R102
1
0R-DNP
R104
1
47R
R105
5
10k
R106, R301, R401, R501, R601
1
5.6k
R201
4
0R
R202, R203, R204, R205
2
1.02M
R703, R704
1
536K
R705

Sympetrum v3 design files

The KiCad project lives in the borgel/sympetrum-v3 repository on GitHub; these links point at the commit this page was built from.

Sympetrum v3: common questions

What microcontroller does the Sympetrum v3 use?

The Sympetrum v3 is built around the STM32F051K8U6, from the STM32 family.

How big is the Sympetrum v3 PCB?

The Sympetrum v3 measures 98.6 × 92.4 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the Sympetrum v3?

106 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sympetrum v3 design files?

From the borgel/sympetrum-v3 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Sympetrum v3 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Sympetrum v3 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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