HardLabs

Lvbms

ncku-formula-racing·circuit·lvbms/lvbms.kicad_pcb

Lvbms PCB layout, top view — open source STM32 board by ncku-formula-racing

About the Lvbms PCB

Lvbms is an open source STM32 PCB design by ncku-formula-racing, published on GitHub. It is a 2-layer board measuring 100 × 42 mm, with 112 components from 42 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the BQ76942PFBR and SN65HVD256D. By type, the board carries 38 resistors, 31 capacitors, 14 diodes, 10 connectors, 8 fuses and 5 transistors.

From the project

A monorepo of circuit boards

Main components on the Lvbms

BQ76942PFBRSN65HVD256DSTM32F103C8Tx

Lvbms bill of materials (BOM)

112 components, 42 distinct parts.

QtyPartRefs
1
BQ76942PFBR
U1
1
SN65HVD256D
U2
1
STM32F103C8Tx
U3
2
2N7002
Q1, Q4
2
DMN6040SK3
Q2, Q3
1
DXT5551P5
Q5
1
8M
Y1
1
32.768k
Y2
1
Conn_T1
J1
1
Conn_T2
J2
1
Conn_PWR
J3
1
Conn_CAN
J4
1
Conn_WAKE
J5
1
Conn_OLED
J6
1
PROG
J7
1
USB_C_Receptacle_USB2.0_16P
J8
2
Conn_02x08_Counter_Clockwise
J9, J10
8
0.5A Fuse
F1, F2, F3, F4, F5, F6, F7, F8
1
Jumper_2_Open
JP1
1
BZT52C6V2-13-F
D1
Show 22 more
QtyPartRefs
7
SMBJ55.0CA
D2, D3, D4, D5, D6, D7, D8
1
PWR_LED
D9
4
BAT46W-7-F
D10, D11, D12, D13
1
RUN_GREEN
D14
8
220n
C1, C2, C3, C4, C5, C6, C7, C8
11
100n
C9, C10, C12, C15, C16, C17, C20, C21 +3
3
1u
C11, C19, C27
2
470n
C13, C14
1
100p
C18
2
22n
C25, C26
4
20p
C28, C29, C30, C31
4
5k1
R1, R13, R37, R38
1
20k
R2
10
10k
R3, R14, R15, R16, R19, R20, R26, R31 +2
8
100R
R4, R5, R6, R7, R8, R9, R10, R11
3
10M
R12, R18, R27
2
100R
R17, R28
1
7k5
R21
2
100
R22, R24
4
1k
R25, R29, R30, R36
2
60R
R34, R35
1
PMR18EZPJV1L0
R39

Lvbms design files

The KiCad project lives in the ncku-formula-racing/circuit repository on GitHub; these links point at the commit this page was built from.

Lvbms: common questions

What microcontroller does the Lvbms use?

The Lvbms is built around the STM32F103C8Tx, from the STM32 family.

How big is the Lvbms PCB?

The Lvbms measures 100 × 42 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lvbms?

112 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the Lvbms design files?

From the ncku-formula-racing/circuit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Lvbms design in my own project?

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

Can I test firmware for the Lvbms 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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