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Optical flow

SSL-A-Team·electrical·robot/optical-flow/v1.0/optical-flow.kicad_pcb

Optical flow PCB layout, top view — open source STM32 board by SSL-A-Team
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About the Optical flow PCB

Optical flow is an open source STM32 PCB design by SSL-A-Team, published on GitHub under the MIT license. It is a 4-layer board measuring 60 × 53.7 mm, with 49 components from 41 distinct parts.

Its main chip is the STM32H723ZGTX, from the STM32 family. By type, the board carries 22 resistors, 12 capacitors, 5 connectors, 4 diodes, 2 crystals and 2 switches.

From the project

circuit board design files, gerbers, and circuit analysis

All current board releases use KiCad 7.X.

See releases for competition production files. Our releases include known bug documentation, and the confirmed gerber, BoM, and CPL files sent to fab so you know you're looking and ordering what we did. Releases are accompanied by a tagged commit, for all editable project files used to generate the fab products.

For complex boards like control and kicker, we include spice models and python files that compute any relevant values from datasheets, and including documented references and links to needed formulations.

Main components on the Optical flow

STM32H723ZGTX

Optical flow bill of materials (BOM)

49 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32H723ZGTX
STM32G071RBTx
U1
1
BSS84
BSS138K
Q1
1
Q13FC13500005
TAXM8M4RDBCCT2T
Y1
1
TAXM8M4RDBCCT2T
Q13FC13500005
Y2
1
CONN_ARM_JTAG_SWD_10
Conn_ARM_JTAG_SWD_10
J2
1
SM12B-ZESS
SM07B-SRSS-TB
J3
1
BM11B-SRSS-TB
SM07B-SRSS-TB
J4
1
BM10B-SRSS-TB
SM05B-SRSS-TB
J5
1
SM12B-ZESS
SM09B-SRSS-TB
J6
1
A6SN-1104
BTN0
SW1
1
SW_DIP_X02
RST
SW3
1
SMBJ26CA
XL-1608UBC-04
D1
1
XL-1608UWC-04
XL-1608UBC-04
D2
1
LTST-C195KGJRKT
XL-1608UGC-04
D3
1
LTST-C195KGJRKT
XL-1608SURC-06
D4
1
C77020
11pF 6.3V
C1
1
C1518208
11pF 6.3V
C2
1
15PF
100n 6.3V
C3
1
15PF
15pF 6.3V
C4
1
C77020
15pF 6.3V
C5
Show 21 more
QtyPartRefs
1
C1518208
100u
C6
1
C77020
100u
C7
1
C1518208
100n 6.3V
C8
1
C1518208
4.7u 6.3V
C9
1
C77020
1u 6.3V
C10
2
11PF
100n 6.3V
C11, C12
1
330
10k
R1
2
10k
R2, R14
1
10K
10k
R3
4
100K
10k
R4, R8, R16, R21
2
2.2k
R5, R6
1
100K
330
R7
1
11.5K
100k
R9
1
1.5K
100k
R10
1
650
330
R11
2
330
R12, R13
1
5.1K
10k
R15
1
100K
100k
R17
1
330
100k
R18
2
330
R19, R22
1
100K
100
R20

Optical flow design files

The KiCad project lives in the SSL-A-Team/electrical repository on GitHub; these links point at the commit this page was built from.

Optical flow: common questions

What microcontroller does the Optical flow use?

The Optical flow is built around the STM32H723ZGTX, from the STM32 family.

How big is the Optical flow PCB?

The Optical flow measures 60 × 53.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Optical flow?

49 components, from 41 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 Optical flow design files?

From the SSL-A-Team/electrical 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 Optical flow design in my own project?

Yes, under the terms of its MIT license, which SSL-A-Team chose for the repository.

Can I test firmware for the Optical flow 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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