HardLabs

Stomper

JoKhannn·Stomper·StepperMotorDriverPCB/StepperMotorDriver.kicad_pcb

Stomper PCB layout, top view — open source STM32 board by JoKhannn

About the Stomper PCB

Stomper is an open source STM32 PCB design by JoKhannn, published on GitHub. It is a 4-layer board measuring 40.3 × 39.2 mm, with 64 components from 41 distinct parts.

Its main chip is the STM32G473CBTx, from the STM32 family. Other key parts include the TMC2209-LA, SN65HVD232, AP63203WU and MT6701CT. By type, the board carries 27 capacitors, 12 resistors, 9 connectors, 5 ICs, 4 diodes and 2 jumpers.

It belongs with the robotics & motion designs in this gallery.

From the project

IN DEVELOPEMENT Stepper driver designed to be mounted on bottom of motors. Daisy chainable CAN BUS and power delivery. Closed loop encoder.

Stomper, from the project README
From the project README

Main components on the Stomper

TMC2209-LASN65HVD232STM32G473CBTxAP63203WUMT6701CT

Stomper bill of materials (BOM)

64 components, 41 distinct parts.

QtyPartRefs
1
TMC2209-LA
IC2
1
SN65HVD232
U2
1
STM32G473CBTx
U3
1
AP63203WU
U5
1
MT6701CT
U6
1
16MHz
Y2
2
Conn_01x02_Pin
J1, J7
4
Conn_01x01_Pin
J2, J3, J8, J9
1
Conn_01x04_Socket
J4
1
Conn_01x02_Pin
J5
1
USB_C_Receptacle_USB2.0_16P
J10
2
Jumper_2_Bridged
JP1, JP2
2
SW_SPST
SW1, SW2
1
SMF6V0A
D1
1
D_TVS_30V
D2
1
Green
D3
1
Red
D4
1
120R
FB3
1
4.7uF
L2
1
.1uF
C1
Show 21 more
QtyPartRefs
5
100nF
C2, C5, C7, C9, C26
2
10pF
C3, C4
1
22nF 50V
C6
1
100uF
C8
1
100n 16V
C10
1
2.2uF 6.3V
C11
5
100n
C12, C13, C14, C16, C21
1
10u
C15
1
10n
C17
3
1u
C18, C19, C22
2
0.1u
C20, C23
1
10uF
C25
2
22uF
C27, C28
2
10k
R1, R12
2
5.1k
R2, R3
1
R1k
R4
2
100mOHM
R5, R6
2
5.1kOhm
R7, R8
1
1.5k
R9
1
1k5
R10
1
120R
R11

Stomper design files

The KiCad project lives in the JoKhannn/Stomper repository on GitHub; these links point at the commit this page was built from.

Stomper: common questions

What microcontroller does the Stomper use?

The Stomper is built around the STM32G473CBTx, from the STM32 family.

How big is the Stomper PCB?

The Stomper measures 40.3 × 39.2 mm, has 4 copper layers and is 2.63 mm thick.

How many components are on the Stomper?

64 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Stomper design files?

From the JoKhannn/Stomper repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Stomper design in my own project?

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

Can I test firmware for the Stomper 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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