HardLabs

ガチ夫

TOBA-Robocon·NHK_2025_circuit_public_var·ガチ夫/ガチ夫.kicad_pcb

ガチ夫 PCB layout, top view — open source STM32 board by TOBA-Robocon

About the ガチ夫 PCB

ガチ夫 is an open source STM32 PCB design by TOBA-Robocon, published on GitHub. It is a 2-layer board measuring 80 × 50 mm, with 76 components from 36 distinct parts.

Its main chip is the STM32F303K8Tx, from the STM32 family. Other key parts include the Regulator_12.0, Regulator_5.0, Regulator_3.3, MCP2561-E-SN and IR2302. By type, the board carries 23 resistors, 18 capacitors, 9 diodes, 8 ICs, 6 connectors and 4 transistors.

From the project

鳥羽商船Aチームが2025年度のNHK高専ロボコンで使用した基板(公開用に多少編集済み)

付属のXT60に給電することで分岐先のUSB-Cの電源ラインに電源を供給できる。

電源を供給することで後述する「偽C610(C810)」を駆動させることができる。

本番で使った基板にはれな子のシルクが乗っているため、部内では「れな子」と呼ばれていた。

ESP32とF405RGTがついている。Dualshock4の値をESP32で受け取ってCANバスに流し散らかす。

Dualshock4の値を使って各機構の処理をし、4本のUSB-C_CANで各基板にデータを転送する。

CAN1、ロリコン2(XAコネクタ5pin)、リミットスイッチ2(XAコネクタ2pin)、電流センサ2、「GODDCMD」を刺すスロット*2,

CAN1、ロリコン1(XAコネクタ5pin)、リミットスイッチ1(PHコネクタ2pin)、電流センサ1、モータードライバ*1ch

Main components on the ガチ夫

Regulator_12.0Regulator_5.0Regulator_3.3MCP2561-E-SNSTM32F303K8TxIR2302NCS214

ガチ夫 bill of materials (BOM)

76 components, 36 distinct parts.

QtyPartRefs
1
Regulator_12.0
U1
1
Regulator_5.0
U2
1
Regulator_3.3
U3
1
MCP2561-E-SN
U5
1
STM32F303K8Tx
U6
2
IR2302
U7, U8
1
NCS214
U9
1
Motor_DC
M1
4
Q_NMOS_Depletion_GDS
Q1, Q2, Q3, Q4
1
16MHz
Y1
1
XT60
J1
1
LoLi_1
J2
1
Conn_01x02_Pin
J3
1
Conn_01x02_Pin
J4
1
USB_C_Receptacle_USB2.0_16P
J5
1
Conn_ST_STDC14
J6
1
Reset
SW1
1
button2
SW3
1
button1
SW4
1
SW_Wuerth_450301014042
SW5
Show 16 more
QtyPartRefs
1
RGB
LED1
6
D
D1, D2, D3, D4, D5, D6
3
LED
D7, D8, D9
1
FerriteBead
FB1
1
1000μ
C1
8
0.1μ
C2, C3, C4, C8, C9, C10, C11, C14
3
10μ
C5, C6, C7
2
22p
C15, C16
2
0.1μF
C17, C20
2
1μF
C18, C19
1
120
R1
7
10k
R2, R3, R10, R20, R21, R22, R23
6
1k
R4, R5, R6, R7, R8, R9
4
10Ω
R11, R12, R17, R18
4
47k
R13, R14, R15, R16
1
0.5m
R19

ガチ夫 design files

The KiCad project lives in the TOBA-Robocon/NHK_2025_circuit_public_var repository on GitHub; these links point at the commit this page was built from.

ガチ夫: common questions

What microcontroller does the ガチ夫 use?

The ガチ夫 is built around the STM32F303K8Tx, from the STM32 family.

How big is the ガチ夫 PCB?

The ガチ夫 measures 80 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ガチ夫?

76 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the ガチ夫 design files?

From the TOBA-Robocon/NHK_2025_circuit_public_var repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ガチ夫 design in my own project?

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

Can I test firmware for the ガチ夫 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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