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Link

oats-center·avena-rs·schematics/link/link.kicad_pcb

Link PCB layout, top view — open source STM32 board by oats-center

About the Link PCB

Link is an open source STM32 PCB design by oats-center, published on GitHub. It is a 4-layer board measuring 88.9 × 76.2 mm, with 121 components from 74 distinct parts.

Its main chip is the STM32G031K8Tx, from the STM32 family. Other key parts include the Ag9912-LP, LM27762, TC1262-33, AD8422ARMZ and OPA2182. By type, the board carries 47 capacitors, 40 resistors, 11 diodes, 10 ICs, 5 switches and 3 connectors.

From the project

Avena On The Road: Bringing pavement health data to your fingertips

Main components on the Link

Ag9912-LPLM27762TC1262-33AD8422ARMZOPA2182ADS131M02QPWRQ1STM32G031K8TxW5500AT25SF128A-SHB-T

Link bill of materials (BOM)

121 components, 74 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Ag9912-LP
U1
1
LM27762
U2
1
TC1262-33
U3
2
AD8422ARMZ
U4, U6
1
OPA2182
U5
1
ADS131M02QPWRQ1
U7
1
STM32G031K8Tx
U8
1
W5500
U9
1
AT25SF128A-SHB-T
U10
1
ECS-2520MVLC-081.92-BN-TR
Y1
1
KC2520Z25.0000C1SY00;
Y2
1
C89120
ARJM11C7-114-BA-EW2
J2
1
12V Alt Supply
J5
1
Prog_Header
J6
1
C206917
Fuse
F1
1
R-78CK3.3-0.5
R-78CK5.0-0.5
PS1
2
Feedbacks
SW1, SW3
2
Returns
SW2, SW4
1
TS04-66-55-BK-260-SMT
RESET
SW5
2
ABS10
BAV199
D1, D2
Show 54 more
QtyPartRefs
1
SMAJ58A
ESD7381MUT5G
D3
2
C2288
BAV199
D4, D5
2
C2288
ABS10
D6, D7
1
US1M
SMAJ58A
D8
1
US1M
D9
1
KT-0603B
LED1
D10
1
598-8E90-107F
+12V
D11
1
FerriteBead_Small
FB1
1
1NF
22nF
C1
1
22NF
6.8nF
C2
1
10NF
6.8nF
C3
1
10UF
10nF
C4
1
10UF
1nF
C5
1
C165558
2.2uF
C6
1
C70462
4.7uF
C7
1
25V 100uF
C8
1
25V 10uF
C9
3
10uF
C10, C13, C34
1
4.7uF
C11
2
4.7uF
C12, C32
1
2.2UF
10uF
C14
1
10UF
10uF
C15
1
4.7UF
10uF
C16
1
4.7UF
0.1uF
C17
1
4.7UF
100pF
C18
18
0.1uF
C19, C22, C23, C26, C27, C29, C31, C33 +10
1
10UF
220pF
C20
1
10UF
0.1uF
C21
1
100pF
C24
1
220pF
C25
2
1uF
C28, C30
1
CGA0603X7R104K500JT
0.1uF
C42
2
10nF
C45, C46
2
49R9
R1, R2
1
10
R3
2
100K
49R9
R4, R5
1
56K
100k
R6
1
56K
56k
R7
1
100k
R8
1
270
56k
R9
1
270
6.65k
R10
1
270
100
R11
2
33.2k
R12, R22
5
6.65k
R14, R15, R20, R24, R25
2
~
R16, R26
3
100
R17, R21, R27
4
10M
R18, R19, R28, R29
1
270
R30
4
10k
R31, R33, R36, R37
1
RCA0310KJLF
10k
R32
3
33
R34, R35, R38
2
330
R39, R40
1
12.4k
R41
1
220
R42

Link design files

The KiCad project lives in the oats-center/avena-rs repository on GitHub; these links point at the commit this page was built from.

Link: common questions

What microcontroller does the Link use?

The Link is built around the STM32G031K8Tx, from the STM32 family.

How big is the Link PCB?

The Link measures 88.9 × 76.2 mm, has 4 copper layers and is 1.565 mm thick.

How many components are on the Link?

121 components, from 74 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 Link design files?

From the oats-center/avena-rs 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 Link design in my own project?

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

Can I test firmware for the Link 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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