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STM32F103C8T6-Custom

69series·STM32F103C8T6-Custom-PCB

STM32F103C8T6-Custom PCB layout, top view — open source STM32 board by 69series

About the STM32F103C8T6-Custom PCB

STM32F103C8T6-Custom is an open source STM32 PCB design by 69series, published on GitHub under the MIT license. It is a 2-layer board measuring 41.5 × 33 mm, with 28 components from 17 distinct parts.

Its main chip is the STM32F103C8T6, 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

Custom 2-layer PCB design for STM32F103C8T6 — schematic, layout, and firmware documentation

A custom-designed 2-layer development board built around the STM32F103C8T6 (Arm Cortex-M3), featuring USB, UART, I2C, and SWD interfaces. Designed from schematic to manufacturing files in KiCad, inspired by Phil's Lab's PCB design tutorials.

- Overview - Features - Schematic - PCB Layout - Pin Configuration - Programming the Board - Bill of Materials - Manufacturing Files - Design Decisions - Future Improvements - License

STM32F103C8T6-Custom, from the project README
From the project README

Main components on the STM32F103C8T6-Custom

STM32F103C8T6AMS1117-3.3

STM32F103C8T6-Custom bill of materials (BOM)

28 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F103C8T6
U1
1
AMS1117-3.3
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
5
100N
100n
C1, C2, C3, C4, C9
1
10U
10u
C5
1
10N
10n
C6
2
1u
C7, C8
2
10P
10p
C10, C11
2
22U
22u
C12, C13
1
10K
10k
R1
1
1K5
1k5
R2
3
1K5
1k5
R3, R4, R5

STM32F103C8T6-Custom design files

The KiCad project lives in the 69series/STM32F103C8T6-Custom-PCB repository on GitHub; these links point at the commit this page was built from.

STM32F103C8T6-Custom: common questions

What microcontroller does the STM32F103C8T6-Custom use?

The STM32F103C8T6-Custom is built around the STM32F103C8T6, from the STM32 family.

How big is the STM32F103C8T6-Custom PCB?

The STM32F103C8T6-Custom measures 41.5 × 33 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the STM32F103C8T6-Custom?

28 components, from 17 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 STM32F103C8T6-Custom design files?

From the 69series/STM32F103C8T6-Custom-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 STM32F103C8T6-Custom design in my own project?

Yes, under the terms of its MIT license, which 69series chose for the repository.

Can I test firmware for the STM32F103C8T6-Custom 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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