HardLabs

04-PWR

tuton-RCJ·2025PCB·2-KANTO/04-PWR/04-PWR.kicad_pcb

04-PWR PCB layout, top view — open source STM32 board by tuton-RCJ

About the 04-PWR PCB

04-PWR is an open source STM32 PCB design by tuton-RCJ, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 110 mm, with 46 components from 32 distinct parts.

Its main chip is the STM32F103C8TX, from the STM32 family. By type, the board carries 13 resistors, 11 capacitors, 7 connectors, 5 ICs, 5 modules and 2 switches.

From the project

基板・回路のリポジトリです。

基板はすべてKiCAD7.0で設計し、JLCPCB様に発注しています。 1-TOKYOが東東京ノード大会で使用した基板です。 2-KANTOは関東ブロック大会で使用した基板です。 3-NAGOYAは名古屋全国大会で使用した基板です。

Main components on the 04-PWR

STM32F103C8TX

04-PWR bill of materials (BOM)

46 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F103C8TX
STM32F103C8Tx
U1
2
~
U2, U3
2
~
U4, U5
1
ServoBasketLeft
M1
1
ServoArmLeft
M3
1
ServoArmRight
M4
1
ServoHandLeft
M5
1
ServoHandRight
M6
1
Q_PMOS_GDS
Q1
1
PB_PIN
J1
1
CONN_01X05
Conn_01x05
J2
1
PA_PIN
J3
1
WRITER CONN
J4
1
MAIN Conn
J5
1
OpenMV Conn
J6
1
voltmeter
J7
1
Fuse
F1
1
SW_SPDT
SW1
1
SW_SPST
SW2
1
C2297
LED_GREEN
D1
Show 12 more
QtyPartRefs
6
100N
100n
C1, C2, C3, C4, C5, C6
1
4.7U
4.7u
C7
2
22UF
22uF
C8, C9
2
10UF
10uF
C10, C11
5
10K
10k
R1, R2, R3, R4, R6
1
470
R5
1
1k
R7
1
330
R8
1
10
R9
1
1.5K
1.5k
R10
1
680
R11
2
1.2K
1.2k
R12, R13

04-PWR design files

The KiCad project lives in the tuton-RCJ/2025PCB repository on GitHub; these links point at the commit this page was built from.

04-PWR: common questions

What microcontroller does the 04-PWR use?

The 04-PWR is built around the STM32F103C8TX, from the STM32 family.

How big is the 04-PWR PCB?

The 04-PWR measures 100 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 04-PWR?

46 components, from 32 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 04-PWR design files?

From the tuton-RCJ/2025PCB repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 04-PWR design in my own project?

Yes, under the terms of its MIT license, which tuton-RCJ chose for the repository.

Can I test firmware for the 04-PWR 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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