22 open source boards using the STM32F103CBTx
Real designs built with the STM32F103CBTx, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
STM32Allcolours
microresearch
101.3 × 106.2 mm246 partsNo license15
STM32Motor42
zhbi98
42 × 42 mm82 parts4LMIT8
STM32Spel bldc esc
koson
84.5 × 60 mm91 parts4LNo license4
STM32Motor35
35 × 35 mm71 parts4LMIT2
STM32CLOCK
Han-ZenX
90 × 90 mm157 parts4LCustom license1
STM32MMS3
ArthorH
100 × 50 mm156 parts4LNo license1
STM32MultiBench
M-Mrk
90 × 85 mm78 parts2LNo license1
STM32Menelaos rev-4
acastles91
99.5 × 91 mm124 parts4LNo license0
STM32Mixed-Signal STM32
cipher8-0
60.1 × 78 mm110 parts4LNo license0
STM32ST-LINK-V2 1
zukki4123
50 × 20 mm36 parts2LMIT0
STM32Allcolours fixed21102020
101.3 × 106.2 mm246 partsNo license15
STM32OTTO-main
cester-ino
239 × 80 mm100 parts2LGPL-3.02
ESP32Main
Thrcot
100 × 66 mm108 parts2LNo license0
STM32Allcolours back01
101.4 × 128.5 mm243 partsNo license15
STM32${TITLE}
STM32World
76.2 × 50.8 mm51 parts2LCustom license6
STM32NOGPROG
berkeleyauv
33 × 13 mm33 parts2LGPL-3.03
STM32Allcolours prelastchanges
101.3 × 106.2 mm237 partsNo license15
STM32LoRaModem
wangyeee
24 × 36 mm48 parts2LBSD-3-Clause9
STM32Allcolours theone
101.4 × 128.5 mm237 parts2LNo license15
STM32Stm32 esc
dragonlock2
36 × 59 mm106 parts2LApache-2.013
STM32STM32F103
cristobalcuevas
42.7 × 34.5 mm28 parts2LNo license0
STM32MCUSTM32F405
76.2 × 50.8 mm29 parts2LCustom license6
The STM32F103CBTx in open source designs
The gallery holds 22 open source boards using the STM32F103CBTx from 17 GitHub repositories; a typical one measures about 87.3 × 63 mm and carries around 103 components.
61% are two-layer designs, the rest use four layers or more, and 32% carry an open source license.
The most starred is Allcolours by microresearch.
Parts used alongside the STM32F103CBTx
What boards using the STM32F103CBTx are built for
STM32F103CBTx: common questions
Where can I find a STM32F103CBTx reference design?
Each of the 22 boards on this page is a real design using the STM32F103CBTx. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the STM32F103CBTx?
The AMS1117-3.3, USBLC6-2SC6, ME3116AM6G, MT6816 and TB67H450FNG,EL appear in the most repositories here.
Which microcontrollers do boards using the STM32F103CBTx use?
Most are built on STM32 (21) and ESP32 (1).
How big is a typical board using the STM32F103CBTx?
The median is 87.3 × 63 mm, and 61% are two-layer designs.
What is the most popular open source board using the STM32F103CBTx?
By GitHub stars, Allcolours by microresearch, with 15 stars.
Can I simulate one of these boards using the STM32F103CBTx before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.