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Stm32f103c

1mctrl·stm32f103c-pcb

Stm32f103c PCB layout, top view — open source STM32 board by 1mctrl
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About the Stm32f103c PCB

Stm32f103c is an open source STM32 PCB design by 1mctrl, published on GitHub. It is a 2-layer board measuring 42 × 34 mm, with 28 components from 16 distinct parts.

Its main chip is the STM32F103C_8-B_TX, from the STM32 family. Other key parts include the AMS1117-3.3. By type, the board carries 13 capacitors, 5 resistors, 4 connectors, 2 ICs, 1 crystal and 1 switch.

From the project

A custom PCB project for the STM32F103C microcontroller, designed using KiCad.

A custom PCB project for the STM32F103C microcontroller, designed using KiCad.

- stm.kicadsch — schematic file - stm.kicadpcb — PCB layout - stm.csv, -pos.csv — BOM and component position files - stm32f103c-gerbers.zip — production-ready Gerber files - stm32f103c.step — 3D model of the MCU - .kicadpro, .kicadprl — KiCad project config files

The stm32f103c-gerbers.zip archive contains all files required for PCB manufacturing (e.g., JLCPCB, PCBWay).

Stm32f103c, from the project README
From the project README

Main components on the Stm32f103c

AMS1117-3.3STM32F103C_8-B_TX

Stm32f103c bill of materials (BOM)

28 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
STM32F103C_8-B_TX
STM32F103C_8-B_Tx
U2
1
16MHZ
16MHz
Y1
1
USB_B_Micro
J1
3
CONN_01X04_PIN
Conn_01x04_Pin
J2, J3, J4
1
SW_SPDT
SW1
1
red
D1
1
120R
FB1
1
10U
10u
C1
5
100N
100n
C2, C3, C4, C5, C11
1
10N
10n
C6
2
1u
C7, C8
2
22U
22u
C9, C10
2
10P
10p
C12, C13
4
1K5
R1, R3, R4, R5
1
10K
10k
R2

Stm32f103c design files

The KiCad project lives in the 1mctrl/stm32f103c-pcb repository on GitHub; these links point at the commit this page was built from.

Stm32f103c: common questions

What microcontroller does the Stm32f103c use?

The Stm32f103c is built around the STM32F103C_8-B_TX, from the STM32 family.

How big is the Stm32f103c PCB?

The Stm32f103c measures 42 × 34 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stm32f103c?

28 components, from 16 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 Stm32f103c design files?

From the 1mctrl/stm32f103c-pcb 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 Stm32f103c design in my own project?

The repository has no license, so all rights stay with 1mctrl. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Stm32f103c 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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