2,263 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.
Optical daq vga v0 4 1
miniscope
80 × 70 mm84 parts4LCERN-OHL-S-2.02
FPGAICEBreaker Bitsy
murkyshelf
35.6 × 17.8 mm82 parts4LApache-2.02
RP2040/RP2350Rtl8762ckf dev board
simplexion
97.8 × 17.8 mm75 parts2LCERN-OHL-P-2.02
ESP32Ws uc06
wildsystems
105 × 90 mm74 parts2LCERN-OHL-P-2.02
PICEvilia boat servo
robperkel
85 × 56 mm73 parts2LGPL-3.02
STM32STM32-Training-Board with-LEDs and-MAX30102
lkoehli
64.8 × 85.3 mm72 parts2LNo license2
Raspberry PiHomelabio
nrwiersma
230 × 42 mm71 parts4LNo license2
Ai08-devboard
Sirawit7205
80 × 70 mm65 parts2LCERN-OHL-S-2.02
STM32Stm32-can ecu
dhruxraj
80 × 60 mm65 parts4LCERN-OHL-P-2.02
ESP8266Placa Shield Bluepill-STM32
Rdisrael
99 × 90.1 mm64 parts2LNo license2
STM32Kyber
lowdrant
60.7 × 27.2 mm63 parts4LAGPL-3.02
PCB Drivers + Sensores
JagdtigerAusfb
150 × 155 mm59 parts2LNo license2
STM32STM32-Environmental-Sensor and-Datalogging-Board
Fred98246
40 × 58 mm58 parts4LMIT2
ESP32Ti-99-keyboard
JonVogel
73.5 × 90.3 mm55 parts2LMIT2
Pluralsight Drumkit RevB Driver
jzkmath
100 × 100 mm54 parts2LGPL-3.02
STM32STM32F405RGT6-and-HDC1080-Development-Board
FatihTuncc
100 × 100 mm53 parts4LNo license2
STM32STM32WBA55CGU-Breakout
fsanzeni
80 × 66 mm51 parts2LMIT2
STM32Nmea pi hat
ronangaillard
65 × 56 mm51 parts2LMIT2
ESP32Shard
Ender878
48.8 × 46.3 mm50 parts4LMIT2
STM32CommonSlotPSU TouchScreenController HW
cracked-machine
124 × 100 mm49 parts2LNo license2
GD32KiCad-GD32FxxxRx no-PHY
vanvught
77.2 × 59.7 mm48 parts2LMIT2
ESP32Atlas-S3-DevBoard
OmkarKnkr
27.4 × 65.2 mm47 parts4LNo license2
RP2040/RP2350Rp2040 mwtrackball
monroewilliams
46 × 34 mm45 parts2LNo license2
RP2040/RP2350Devboardrp2350
espcaa
59.2 × 26.4 mm43 parts4LNo license2
STM32Feather STM32WB55
makeristic
52.5 × 22.9 mm43 parts4LNo license2
4IN14NixieShield
NEONTEC75
98.8 × 53.6 mm43 parts2LCC-BY-NC-4.02
AVR/ArduinoOnyks atxmega256-devboard
knonyks
55 × 102 mm43 parts4LMIT2
NXPUniversal-Teensy-4.0-Eurorack-Shield
Fora888
17.8 × 101.6 mm41 parts2LNo license2
RP2040/RP2350Devobordo
Travis8795
21 × 51 mm40 parts2LMIT2
STM32STM32C5-eval board
tenko
53.5 × 20 mm39 parts4LMIT2
5V PCM5102 interface for Raspberry PI (PLL Operation)
6r1d
65.6 × 34.1 mm38 parts2LMIT2
STM32STM32F103VET6 STUno
r-pv
42.5 × 62.5 mm38 parts2LGPL-3.02
ESP32ULX4M-CM4-HAT
intergalaktik
65 × 56 mm37 parts4LGPL-3.02
High accuracy logging volt/amp meter
Fescron
68.6 × 36.6 mm36 parts2LNo license2
RP2040/RP2350PiCat
sbunger
21 × 51 mm35 parts2LGPL-3.02
STM32Custom eval stm32L43KCU6
hedfd434
27.4 × 53 mm35 parts4LNo license2
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