HardLabs

RE42

AL-255·RE42·RE/DM42n-calcbase6/DM42n-calcbase6.kicad_sch

This repository ships a schematic but no board layout.

About the RE42 PCB

RE42 is an open source STM32 PCB design by AL-255, published on GitHub. It is a board, with 59 components from 30 distinct parts.

Its main chip is the STM32U575RITxQ, from the STM32 family. Other key parts include the IXD2140, USBLC6-4SC6, SiP32432DR3, MX25R6435F and AIC1747-33xV5Nxx. By type, the board carries 22 capacitors, 14 resistors, 6 ICs, 4 inductors, 3 connectors and 2 crystals.

From the project

Reverse Engineering of the DM42 Platform

Main components on the RE42

IXD2140USBLC6-4SC6STM32U575RITxQSiP32432DR3MX25R6435FAIC1747-33xV5Nxx

RE42 bill of materials (BOM)

59 components, 30 distinct parts.

QtyPartRefs
1
IXD2140
U1
1
USBLC6-4SC6
U2
1
STM32U575RITxQ
U3
1
SiP32432DR3
U4
1
MX25R6435F
U5
1
AIC1747-33xV5Nxx
U7
1
32.768K
Y1
1
16.000MHz
Y3
1
USB_C_Receptacle_USB2.0_16P
J1
2
2.54mm
J4, J5
1
CR2032
BATT_CR2032
1
Buzzer
BZ1
1
Jumper_2_Open
JP2
1
LS027B7DH01
LCD1
1
PGM
SW1
1
RESET
SW2
2
?
D1, D2
2
FerriteBead_Small
FB1, FB2
2
?
L1, L2
22
?
C1, C3, C4, C5, C6, C7, C8, C9 +14
Show 10 more
QtyPartRefs
2
10k
R1, R2
1
510
R3
1
100k
R4
1
420
R7
2
22
R8, R11
1
51k
R10
1
10M
R12
2
0
R16, R17
1
1k
R21
2
5.1k
R22, R23

RE42 design files

The KiCad project lives in the AL-255/RE42 repository on GitHub; these links point at the commit this page was built from.

RE42: common questions

What microcontroller does the RE42 use?

The RE42 is built around the STM32U575RITxQ, from the STM32 family.

How many components are on the RE42?

59 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the RE42 design files?

From the AL-255/RE42 repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the RE42 design in my own project?

The repository has no license, so all rights stay with AL-255. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RE42 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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