Shoto

Fabian0520·Shoto

Shoto PCB layout, top view — open source STM32 board by Fabian0520

About the Shoto PCB

Shoto is an open source STM32 PCB design by Fabian0520, published on GitHub. It is a 2-layer board measuring 265.2 × 79 mm, with 108 components from 23 distinct parts.

Its main chip is the STM32F072C8Tx, from the STM32 family. Other key parts include the XC6206PxxxMR and SRV05-4. By type, the board carries 48 relays, 14 diodes, 13 capacitors, 6 resistors, 3 ICs and 1 transistor.

Main components on the Shoto

STM32F072C8Tx XC6206PxxxMR SRV05-4

Shoto bill of materials (BOM)

108 components, 23 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	STM32F072C8Tx	LQFP-48_7x7mm_P0.5mm	U1
1	XC6206PxxxMR	SOT-23	U2
1	SRV05-4	SOT-23-6	U3
1	2N7002	SOT-23	Q1
1	USB_C_Receptacle_USB2.0	USB_C_Receptacle_HRO_TYPE-C-31-M-12	J1
18	BAV70	SOT23-3_HSOL	DD1, DD2, DD3, DD4, DD5, DD6, DD7, DD8 +10
1	ASMD1206-150	Fuse_1206_3216Metric	F1
48	KEYSW	Kailh_MX_Socket	K1, K2, K3, K4, K5, K6, K7, K8 +40
1	TS-1187A-B-A-B	SW_SPST_TL3342	SW1
2	Stabilizer	2U-StabFlip	Stab_1, Stab_2
1	SMF9.0CA	D_SOD-123	D1
1	D_Schottky	D_SOD-123	D2
12	D	D_SOD-123	D3, D4, D5, D6, D7, D8, D9, D10 +4
3	100n	C_0603_1608Metric	C1, C2, C3
1	10n	C_0603_1608Metric	C4
3	4.7u	C_0603_1608Metric	C5, C6, C8
4	1u	C_0603_1608Metric	C7, C10, C11, C13
1	4.7n	C_0603_1608Metric	C9
1	10u	C_0603_1608Metric	C12
2	5.1k	R_0603_1608Metric	R1, R2

Show 3 more

Qty	Part	Footprint	Refs
1	1M	R_1206_3216Metric	R3
2	10k	R_0603_1608Metric	R4, R5
1	100k	R_0603_1608Metric	R6

Shoto design files

The KiCad project lives in the Fabian0520/Shoto repository on GitHub; these links point at the commit this page was built from.

LayoutShoto.kicad_pcb
BOMBOM.xlsx

Shoto: common questions

What microcontroller does the Shoto use?

The Shoto is built around the STM32F072C8Tx, from the STM32 family.

How big is the Shoto PCB?

The Shoto measures 265.2 × 79 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Shoto?

108 components, from 23 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 Shoto design files?

From the Fabian0520/Shoto repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Shoto design in my own project?

The repository has no license, so all rights stay with Fabian0520. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Shoto 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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