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STM32 Klipper Expander

VoronDesign·Voron-Hardware·Klipper_Expander/KiCad/STM32_Klipper_Expander.kicad_pcb

STM32 Klipper Expander PCB layout, top view — open source STM32 board by VoronDesign

About the STM32 Klipper Expander PCB

STM32 Klipper Expander is an open source STM32 PCB design by VoronDesign, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 24 mm, with 55 components from 27 distinct parts.

Its main chip is the TMC2130-LA-T, from the STM32 family. By type, the board carries 22 resistors, 11 connectors, 7 diodes, 6 capacitors, 4 transistors and 3 ICs.

From the project

Cool Hardware designed by the Voron Design group

Documentation and Setup information here

Parts that need to be sourced if assembled by JLC: - Micro USB port Molex 105017-0001 or equivalent Amazon - Keystone Fuse Holder Keystone 3544-2 - Mini Blade Fuse 2A 32V, 5A 32V, 10A 32V, or Amazon Assortment - 2 Pin Tactile Switch 6 x 3.5mm Button or Amazon - Screw Terminals 5.08mm Screw Terminals - Thermistor plugs JST B2B-XH-A - Header Pins Connector Header Through Hole 16 position 2.54mm or similar

STM32 Klipper Expander, from the project README
From the project README

Main components on the STM32 Klipper Expander

TMC2130-LA-T

STM32 Klipper Expander bill of materials (BOM)

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

QtyPartRefs
1
TMC2130-LA-T
STM32F042F6Px
U1
1
TMC2130-LA-T
AP2127K-3.3
U2
1
TMC2130-LA-T
74LVC1G17
U3
4
IRLML6344TRPBF
Q1, Q2, Q3, Q4
1
302-S101
USB_B_Micro
J1
1
302-S101
Conn_01x04
J2
2
0022232041
Conn_01x03
J4, J11
1
0022232041
Vin
J5
1
0022232041
Screw_Terminal_01x08
J6
3
0022232041
Conn_01x02
J7, J8, J9
1
0022232041
Conn_01x01
J10
1
M20-9980346
Conn_01x03
J12
1
3557-2
Fuse
F1
1
SW_SPST
SW2
7
150080SS75000
LED
D1, D2, D3, D4, D5, D6, D7
2
CC0603KRX7R9BB104
0.1uF
C1, C3
4
CC0603KRX7R9BB104
4.7uF
C2, C4, C5, C6
2
RNCP0603FTD10K0
10K
R1, R2
1
RNCP0603FTD10R0
1K
R3
3
RNCP0603FTD10R0
4.7K
R4, R19, R20
Show 7 more
QtyPartRefs
4
RL1220S-R11-F
4.7K
R5, R15, R16, R22
3
RL1220S-R11-F
10K
R6, R13, R14
2
RL1220S-R11-F
100
R7, R8
2
RNCP0603FTD10K0
100
R9, R10
2
RNCP0603FTD10R0
10K
R11, R12
2
RNCP0603FTD10K0
4.7K
R17, R18
1
RL1220S-R11-F
1K
R21

STM32 Klipper Expander design files

The KiCad project lives in the VoronDesign/Voron-Hardware repository on GitHub; these links point at the commit this page was built from.

STM32 Klipper Expander: common questions

What microcontroller does the STM32 Klipper Expander use?

The STM32 Klipper Expander is built around the TMC2130-LA-T, from the STM32 family.

How big is the STM32 Klipper Expander PCB?

The STM32 Klipper Expander measures 100 × 24 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the STM32 Klipper Expander?

55 components, from 27 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 STM32 Klipper Expander design files?

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

Can I use the STM32 Klipper Expander design in my own project?

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

Can I test firmware for the STM32 Klipper Expander 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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