2,363 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.
AVR/ArduinoShield offset
apmarshall3
83.2 × 78.1 mm125 parts4LNo license0
RP2040/RP2350RP2040-Dual-TypeC-eMMC-Board
gorkemguven
63.7 × 41.1 mm124 parts4LMIT0
Pi PCB Hat
CabrilloRoboticsClub
121.4 × 102.1 mm117 parts4LMIT0
Virtex-6-ML602-ADCDAC
tcfh2003
100 × 99.7 mm117 parts4LNo license0
STM32Drv8353sm dev
francis-walsh
100 × 70 mm112 parts4LNo license0
Raspberry PiDart hat
kemfic
114 × 65 mm111 parts4LNo license0
Kevinbot p2 board
Kevinbot-Robotics
196.5 × 95.4 mm110 parts2LCERN-OHL-S-2.00
AVR/ArduinoPdb
0x007E
77.5 × 50.8 mm110 parts2LCC-BY-NC-4.00
STM32Mxed Signal
cristobalcuevas
60 × 75 mm110 parts4LNo license0
Breakoutpcbs
dodotronix
43.9 × 47.5 mm108 parts2LNo license0
Keyboard
DiScarlet
264.8 × 109.2 mm105 parts2LNo license0
ESP32Epaper breakout
SkinnyGnome
100 × 45 mm98 parts4LNo license0
ESP32Epaper breakout
entozoon
100 × 45 mm98 parts4LNo license0
ESP32Epaper breakout
orgTestCodacy11KRepos110MB
100 × 45 mm98 parts4LNo license0
ESP32Nft hydroponic controller
hasan-abuzaid
135 × 101.3 mm97 parts4LCERN-OHL-S-2.00
Nordic nRFNrf9151-tracker
chgpalmer
50.8 × 22.9 mm96 parts4LNo license0
Maiconvert io4-breakout board
YttrisL
170.8 × 114.6 mm92 parts2LCERN-OHL-S-2.00
Raspberry PiEsp
jayadeep14
86.5 × 64.8 mm91 parts2LNo license0
LT Eval board
kprasadvnsi
100 × 100 mm91 parts2LCC-BY-SA-4.00
Caravel-Nucleo v2-M.2
Rimal12345
73.4 × 92.5 mm90 parts2LNo license0
ESP32FluxDrive
dimitrihilverda
60 × 54.5 mm89 parts4LNo license0
Nordic nRFHaven dev board
pauliano22
72.9 × 160.9 mm89 parts6LNo license0
ZU64DR RFSOC
hamedroghani
200 × 150 mm87 parts12LNo license0
ESP32Pantiltslide integrated
AMOVFC
206.1 × 161.6 mm86 parts4LNo license0
STM32Teresina
marcoallegretti
18 × 52.5 mm86 parts12LNo license0
ESP32Robotpcbv1
NIKOLAI-GOGOL444
52.1 × 52.1 mm85 parts4LApache-2.00
ESP32ESP32 based dev board
harris8099
84.5 × 54.8 mm85 parts4LNo license0
Breadboard-Power-Supply
tstills
53.6 × 28.8 mm82 parts4LNo license0
STM32Software dev board
awsmit07
83 × 53 mm81 parts4LNo license0
AVR/ArduinoMega2560controlshield
hedj
108 × 65.8 mm79 parts2LGPL-3.00
ALU 2b
ChetanMandloi
111.6 × 74.9 mm79 parts2LGPL-3.00
ES8389-Hat
scrambletools
51.4 × 21.1 mm79 parts4LNo license0
Nordic nRFNRF9161-DEV-BOARD
anand2532
120 × 80 mm78 parts4LNo license0
STM32Dev board 1
Delete228
91.5 × 93.5 mm76 parts2LNo license0
Netcore tetra
JanHG98
65 × 56.3 mm75 parts2LNo license0
AVR/Arduino6502 Computer
DomAtTheShack
216.6 × 144 mm74 parts2LNo license0
Browse boards by part
AMS1117-3.3 1069USBLC6-2SC6 866RP2040 632W25Q128JVS 394TL072 319AP2112K-3.3 313TL074 281ESP32-S3-WROOM-1 268CH340C 249L7805 229Pico 22174HC595 218USBLC6-2P6 206LM358 20074LS04 180AP2112K-3.3TRG1 179ESP32-WROOM-32 169LM7805_TO220 167SRV05-4 165Arduino_Nano_v3.x 16474LS245 160W25Q128JVSIQ 15774LS138 15574LS32 152