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PCB stepper

PCBrs·CDR-Electronique·PCB_stepper/PCB_stepper.kicad_pcb

PCB stepper layout, top view — open source STM32 board by PCBrs

About the PCB stepper

PCB stepper is an open source STM32 PCB design by PCBrs, published on GitHub. It is a 2-layer board measuring 64.5 × 43.7 mm, with 47 components from 29 distinct parts.

Its main chip is the STM32F302C6Tx, from the STM32 family. Other key parts include the SN65HVD232, NCP1117-3.3_SOT223 and Pololu_Breakout_DRV8825. By type, the board carries 16 capacitors, 12 resistors, 5 connectors, 5 diodes, 3 ICs and 3 switches.

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

From the project

Carte électronique pour la Coupe de France de robotique

La carte principale est basée sur une Teensy 4.1, la communication est faite par Wi-Fi via un ESP32 et la communication interne du robot via un bus CAN. Les cartes sont modulaires et spécifiques, on peut ajouter plusieurs fois le meme types de cartes il faut juste changer l'ID CAN de la carte en soft. Le microcontroleur des cartes périphériques est un STM32F302C8T6.

Main components on the PCB stepper

STM32F302C6TxSN65HVD232NCP1117-3.3_SOT223Pololu_Breakout_DRV8825

PCB stepper bill of materials (BOM)

47 components, 29 distinct parts.

QtyPartRefs
1
STM32F302C6Tx
U1
1
SN65HVD232
U2
1
NCP1117-3.3_SOT223
U3
1
Pololu_Breakout_DRV8825
A1
1
8MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
2
CON_CAN
J2, J3
1
12V
J4
1
Conn_01x04_Male
J5
1
JUMPER
120
1
RST
SW1
1
BOOT
SW2
1
SW_DIP_x03
SW3
1
LED_DEBUG
D1
1
TVS
D2
2
LED_33V
D3, D4
1
LED_5V
D5
6
100n
C1, C2, C5, C6, C9, C12
2
18p
C3, C4
4
10u
C7, C11, C16, C17
Show 9 more
QtyPartRefs
2
47p
C8, C10
1
10u
C14
1
47u
C15
2
270
R1, R8
5
10k
R2, R7, R10, R11, R12
2
5.1k
R3, R4
1
1.5k
R5
1
120
R6
1
560
R9

PCB stepper design files

The KiCad project lives in the PCBrs/CDR-Electronique repository on GitHub; these links point at the commit this page was built from.

PCB stepper: common questions

What microcontroller does the PCB stepper use?

The PCB stepper is built around the STM32F302C6Tx, from the STM32 family.

How big is the PCB stepper?

The PCB stepper measures 64.5 × 43.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PCB stepper?

47 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the PCB stepper design files?

From the PCBrs/CDR-Electronique repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the PCB stepper design in my own project?

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

Can I test firmware for the PCB stepper 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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