HardLabs

Mainboard

oats-center·avena-rs·schematics/v1/mainboard/Mainboard.kicad_pcb

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

About the Mainboard PCB

Mainboard is an open source STM32 PCB design by oats-center, published on GitHub. It is a 4-layer board measuring 286.5 × 96.1 mm, with 63 components from 29 distinct parts.

Its main chip is the STM32G0B1CBT6, from the STM32 family. Other key parts include the CD74HC4051PWR. By type, the board carries 27 capacitors, 15 connectors, 9 resistors, 3 ICs, 2 jumpers and 2 switches.

From the project

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

Main components on the Mainboard

CD74HC4051PWRSTM32G0B1CBT6

Mainboard bill of materials (BOM)

63 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
CD74HC4051PWR
74HC4051
U1, U2
1
STM32G0B1CBT6
STM32G0B1CBTx
U3
1
CS-1166SDIG-2X20(H8.5)
LabJack T7
J1
1
3-641215-2
JL_T7_PWR
J2
1
3-641215-2
Battery
J3
1
3-641215-3
Link I2C
J4
1
PZ2.54-S03P-A60
Link UART
J5
1
3-641215-3
Mainboard UART
J6
1
PZ2.54-S05P-A60
SWD
J7
8
PCIE-036-02-F-D-TH
LinkConnector
J8, J9, J10, J11, J12, J13, J14, J15
1
0154002.DR
Fuse
F1
2
PZ2.54-S03P-A60
Jumper_3_Bridged12
JP3, JP4
1
R-78CK5.0-0.5
PS1
1
DPBW06F-12
PS2
1
R-78CK3.3-0.5
PS3
1
TS04-66-55-BK-260-SMT
BOOT0
SW1
1
TS04-66-55-BK-260-SMT
RESET
SW2
1
KT-0603B
Status
D1
14
0603B221K500NT
220p
C1, C2, C3, C4, C5, C6, C7, C8 +6
1
RST100UF25V004
100u
C15
Show 9 more
QtyPartRefs
1
FV55X104K202EGG
100n
C16
7
CGA0603X7R104K500JT
100n
C17, C22, C23, C24, C25, C26, C27
2
CL21B106KPQNNNE
10u
C18, C21
2
FS55X226K500EHG
22u
C19, C20
1
RCV20101M00FKEFAT
1M
R1
3
RCA0310KJLF
10k
R2, R5, R7
2
RCA0347KJLF
47k
R3, R4
1
RCA03270RFLF
270
R6
2
YC248-JR-0710KL
10k
RN1, RN2

Mainboard 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.

Mainboard: common questions

What microcontroller does the Mainboard use?

The Mainboard is built around the STM32G0B1CBT6, from the STM32 family.

How big is the Mainboard PCB?

The Mainboard measures 286.5 × 96.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Mainboard?

63 components, from 29 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 Mainboard 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 Mainboard 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 Mainboard 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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