2,233 open source boards in Dev boards & breakouts
Development boards, breakouts, shields, HATs and carrier boards. 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.
PCIe x8 Breakout
mwrnd
47.7 × 51.3 mm42 parts4LBSD-2-Clause6
Feather-NEO-M9N-GPS
averywallis
50.8 × 22.9 mm37 parts2LGPL-3.06
ESP32Gulu ESP32-C3 ePaper
Plaenkler
54.8 × 28.1 mm34 parts2LBSD-3-Clause6
GNSS-GPS-L86-M33-breakout hardware design
SolderedElectronics
38 × 54 mm33 parts2LTAPR-OHL-1.06
STM32Stm32l010-breakout
elevendroids
24 × 50 mm29 parts2LCC-BY-SA-4.06
ESP32ESP32S2 DevBoard
blagojenikolic91
31.8 × 65.4 mm29 parts2LNo license6
EV-MAX-V-E64
Gekkio
70 × 70 mm29 parts2LCC-BY-4.06
Coleco adam ade pro shield
djtersteegc
99.1 × 61 mm26 parts2LMIT6
Raspberry PiPcb smarter pi
klein0r
56 × 65 mm20 parts2LMIT6
MIDI Output Breakout Board
TuDo-Makerspace
20.3 × 50.9 mm11 parts2LNo license6
Mic-Preamp
naufalboys
48.3 × 81.3 mm10 parts2LGPL-3.06
Mcp25625-breakout qfn28
asukiaaa
27.9 × 14 mm10 parts2LNo license6
Aqua
nickbild
58.4 × 75.7 mm10 parts2LNo license6
HydraFlash
Baldanos
60 × 37 mm10 parts2LNo license6
PCIe-Aux-Signal-Breakout
Supercookiegaming
65.3 × 68.9 mm8 parts2LNo license6
DA14531MOD-Breakout
kattaliraees
30.1 × 30 mm3 parts2LMIT6
XL7105-SY-B-Breakout
mcauser
20 × 19.5 mm2 parts2LMIT6
AVR/ArduinoNova 1200 front panel
ForgottenMachines
397.5 × 119.4 mm203 parts2LNo license5
FPGAVanilla ice40-8k
pbozeman
100 × 62 mm123 parts6LMIT5
ESP32Epaper breakout
jifanchn
100 × 45 mm98 parts4LNo license5
Microchip SAMBlinky Bowtie
joshajohnson
142.7 × 72 mm95 parts2LGPL-3.05
ESP32Esp32-faerfly-V2.0
low-poly-studio
85.1 × 53.3 mm83 parts4LNo license5
STM32Stm8s005-iot devboard
dilshan
87.9 × 55.4 mm82 parts2LGPL-2.05
Motor shield
semify-eda
65.9 × 52.9 mm80 parts4LNo license5
Pedalshield
inktrap
53.3 × 101.6 mm73 parts2LNo license5
AT86RF215 Breakout
oresat
61.3 × 44.1 mm65 parts4LNo license5
STM32Harpia FC
gabs911
86 × 56.7 mm62 parts2LNo license5
ESP32Ftdi development boards
leonardoward
104 × 81 mm55 parts2LApache-2.05
FPGAIce40hx8k bg121 Breakout
jkiv
22.9 × 48.3 mm55 parts4LCC-BY-NC-4.05
Kicad 7 cli doc gen
JordanAceto
33 × 50.8 mm50 parts4LMIT5
FPGAIce40-dip40
esynr3z
17.8 × 50.8 mm46 parts4LNo license5
ESP32Marauder-T-display-TTGO
AliHj98
78.5 × 20.1 mm45 parts2LMIT5
Dwm1001-devboard
panovvv
52.6 × 48.8 mm37 parts2LMIT5
ByteFrost
gilkeidar
215 × 140 mm36 parts2LNo license5
ESP32Teensy4 esp32 sd usb host breakout
blackketter
22.9 × 55.9 mm33 parts2LNo license5
Gps development boards
107 × 88 mm29 parts2LApache-2.05
Browse boards by part
AMS1117-3.3 1034USBLC6-2SC6 836RP2040 609W25Q128JVS 388TL072 309AP2112K-3.3 308TL074 274ESP32-S3-WROOM-1 266CH340C 242L7805 224Pico 21874HC595 213USBLC6-2P6 200LM358 19074LS04 175AP2112K-3.3TRG1 173ESP32-WROOM-32 167SRV05-4 165Arduino_Nano_v3.x 15974LS245 156LM7805_TO220 15574LS138 152W25Q128JVSIQ 15174LS32 148