235 open source STM32 boards
STMicroelectronics' Arm Cortex-M family, from the STM32F0 to the H7, plus STM8. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
STM32OpenFlops-W1D
silvervest
95 × 116 mm49 parts2LCustom license26
STM32Mist
modern-hobbyist
372.1 × 141.2 mm445 parts2LMIT25
STM32VNA
joshajohnson
100 × 66 mm207 parts2LGPL-3.025
STM32RPI5-CFE-Hat
will127534
65 × 56 mm44 parts4LMIT25
STM32Pcb
dcpedit
347.7 × 119.1 mm218 parts2LCC-BY-4.023
STM32FreeEEG32-alpha1.5
neuroidss
70 × 70 mm192 parts4LAGPL-3.023
STM32STM32F103RB USB to UART SPI I2C
Stulinaz
80 × 80 mm67 parts2LNo license23
STM32Otterlinear keyboard
Jana-Marie
214 × 84 mm136 parts2LNo license22
STM32Moco-RD501
ziteh
50 × 50 mm114 parts4LCERN-OHL-P-2.022
STM32Stm32-camera
Scottapotamas
36 × 36 mm58 parts4LNo license22
STM32X88-HW
cBachoo
344 × 124.1 mm120 parts2LCC-BY-SA-4.021
STM32F405 pill
davidmolony
54.1 × 19.4 mm46 parts4LBSD-3-Clause21
STM32Ferret
fullyautomated
50 × 50 mm116 parts4LNo license20
STM32Ctrl-M
nuess0r
171 × 50.5 mm18 parts2LCERN-OHL-S-2.020- schematic only · 223 partsSTM32
OM-64DO
OpenModbus
223 partsGPL-3.020 
STM32Oresat adcs card
oresat
99.8 × 94.6 mm579 parts4LGPL-2.019
STM32Perdican
Gabouin
37.1 × 39.5 mm35 parts2LMIT19
STM32Stm8s001rs485
TG9541
33.3 × 6.4 mm20 parts2LMIT19
STM32Relaymux
PetteriAimonen
120.4 × 100.4 mm55 parts2LBSD-2-Clause18
STM32BigBoy
transistorfet
160 × 100 mm120 parts4LMIT17
STM32AlcatelLeft
nearestexit
278.7 × 117.2 mm109 parts2LMIT16
STM32MotoHUDsch
wiciu15
128 × 55 mm97 parts2LNo license16
STM32Simpleflightcontroller
notaroomba
40 × 46 mm79 parts2LNo license16
STM32Travaulta WKL
calvin-mcd
208.3 × 75.8 mm46 parts4LCC-BY-NC-4.016
STM32Rii-518bt usb qmk
tangles-0
102.5 × 53 mm125 parts4LNo license15
STM32Tiny-Dimply-Qazy
ASH-ART
200 × 76.2 mm90 parts2LGPL-3.015
STM32Main Board
Terrapin-Rocket-Team
71 × 66 mm87 parts4LNo license15
STM32STLinkForm
grumat
73.7 × 38.1 mm65 parts2LGPL-2.015
STM32Stm32h750-dev board
Essenceia
51.3 × 73 mm48 parts2LNo license15
STM32RT-STACK
fupsrl
150 × 150 mm472 parts6LCC-BY-NC-4.014
STM32CanardBoard
waterloo-rocketry
100 × 70 mm244 parts6LGPL-3.014
STM32FlexiBMS hardware
SimosMCmuffin
65 × 35 mm204 parts4LCC-BY-NC-4.014
STM32Bms hardware
jsphuebner
64.5 × 85.1 mm68 parts4LGPL-3.014
STM32Fsk energymeter
luftaquila
90 × 74 mm79 parts2LCustom license13
STM321016-Breadboard-Power-Supply
wilsondr9999
52.3 × 50.3 mm61 parts2LAGPL-3.013
STM32DCServo
Alex-C-EE
40 × 40 mm57 parts4LNo license13
Browse boards by part
AMS1117-3.3 84RP2040 78USBLC6-2SC6 67TL074 42SRV05-4 40TL072 40ESP32-S3-WROOM-1 36AP2112K-3.3 34W25Q128JVS 33W25Q128JVSIQ 33USBLC6-2P6 30CH340C 25LAN8710A-EZC(QFN32) 24XC6206P332MR 2474LS245 2374HC595 20XC6206PXXXMR 2074HC4051 1974LS244 19XC6206PxxxMR-Regulator_Linear 1974LS04 18AMS1117-5.0 18CH340T(SSOP20W) 1874LS00 17