HardLabs

LinUSBConverter

uCAN-LIN·LinUSBConverter·pcb/LIN_USB_CONVERTER.kicad_pcb

LinUSBConverter PCB layout, top view — open source STM32 board by uCAN-LIN

About the LinUSBConverter PCB

LinUSBConverter is an open source STM32 PCB design by uCAN-LIN, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 17.8 × 34 mm, with 27 components from 20 distinct parts.

Its main chip is the STM32F042G4U6, from the STM32 family. Other key parts include the TJA1028TK/3V3/20/J, MAX12931BASA+ and MCP1700T-3302E/TT. By type, the board carries 9 capacitors, 6 resistors, 5 connectors, 4 ICs and 2 diodes.

From the project

Open source USB ↔ LIN bus dongle. LIN 2.1 master / slave / monitor, optically isolated, SLCAN compatible — no proprietary drivers.

Printed circuit board for LinUSBConverter. Project is made in KiCad.

Main components on the LinUSBConverter

TJA1028TK/3V3/20/JMAX12931BASA+MCP1700T-3302E/TTSTM32F042G4U6

LinUSBConverter bill of materials (BOM)

27 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TJA1028TK/3V3/20/J
U1
1
MAX12931BASA+
U2
1
MCP1700T-3302E/TT
U3
1
STM32F042G4U6
U4
1
Conn_01x03
J1
1
TerminalBlock
J2
1
GS2
J3
1
USB_A
J4
1
CONN_01X05
P2
1
fiducial
mh1
2
SMBD914E6327HTSA1
D1, D3
1
220p
C1
1
1u
C2
3
100n
C3, C4, C9
2
1u
C5, C6
1
10u
C7
1
10n
C8
1
1k
R1
1
10k
R3
4
0
R4, R6, R7, R8

LinUSBConverter design files

The KiCad project lives in the uCAN-LIN/LinUSBConverter repository on GitHub; these links point at the commit this page was built from.

LinUSBConverter: common questions

What microcontroller does the LinUSBConverter use?

The LinUSBConverter is built around the STM32F042G4U6, from the STM32 family.

How big is the LinUSBConverter PCB?

The LinUSBConverter measures 17.8 × 34 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LinUSBConverter?

27 components, from 20 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 LinUSBConverter design files?

From the uCAN-LIN/LinUSBConverter repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the LinUSBConverter design in my own project?

Yes, under the terms of its GPL-3.0 license, which uCAN-LIN chose for the repository.

Can I test firmware for the LinUSBConverter 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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