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.
Patchwork devboard
KOUNOLAB
100 × 60 mm65 parts2LCERN-OHL-P-2.01
MAX6951-64-LED-matrix
jedp
63 × 70.1 mm65 parts2LNo license1
Intel 8088 Computer
oberrow
100 × 100 mm64 parts4LMIT1
FPGANorthernStudios iCE40-UltraPlus-FPGA-Dev-Board
uzzambutt
27 × 55.5 mm62 parts4LMIT1
M4 CAN Feather Carrier v6
2468shrm
70.5 × 79.5 mm61 parts4LNo license1
S2l board
jevans3142
91.4 × 99.1 mm61 parts2LNo license1
Giga shield v03 final
ajokela
154.5 × 89.5 mm60 parts6LBSD-3-Clause1
STM32Kicad rfm95-breakout board
Bamelink
69.2 × 67 mm60 parts2LNo license1
RP2040/RP2350Pico stretch2
jvanderberg
82.1 × 21 mm59 parts4LNo license1
STM32Stm32-RedBoard
EJ-JATIMohammed
53.6 × 77.4 mm59 parts8LNo license1
Capacitive-Pattern-Based-Input-Lock
Tai-Min
89.7 × 63.4 mm58 parts2LMIT1
ESP32ClearBell V0.2
akoerner-dev
110 × 60 mm57 parts4LMIT1
ESP32Aeonlabs-Home-Automation-Smart-EMF-Shield-Curtain for-Windows and-Balconies
aeonSolutions
59.6 × 23.5 mm57 parts2LCC0-1.01
APMHat-4-powered
stephendade
65 × 30.5 mm57 parts2LGPL-3.01
16bit pwm dac board
oldrev
80 × 50 mm54 parts2LNo license1
AVR/ArduinoModular development board
ElektroNeo
79 × 79 mm54 parts2LNo license1
FPGAMachXO2-KiCad-Board
jay-waghmare
65 × 48 mm52 parts4LMIT1
RP2040/RP2350RP2040
Hung-Chi970104
21 × 51 mm51 parts2LNo license1
MosaicG5-HAT
septentrio-gnss
65.8 × 56.1 mm51 parts4LNo license1
RP2040/RP2350Pico-2v
lucasbaizer
51.5 × 21 mm51 parts4LNo license1
RP2040/RP2350Apex
Shadow220108
17.8 × 21 mm51 parts4LNo license1
Dreamster board
dreamster
62 × 60 mm50 parts2LNo license1
STM32Stm32-can do dev board
kurtjd
54 × 78 mm49 parts2LMIT1
ST25R3911B-NFC-Breakout
kattaliraees
50 × 73 mm49 parts2LNo license1
Alex-Harris-Capstone
achihuahua22
65.5 × 56.4 mm49 parts2LMIT1
Raspberry PiTravel router
0x62b
80 × 80 mm49 parts4LNo license1
STM32STM32F4 -Shield
AhmadHaniF1145
100.5 × 58 mm48 parts2LNo license1
6IN14NixieShield
NEONTEC75
143.9 × 53.6 mm48 parts2LCC-BY-NC-4.01
ESP32Custom-ESP32-Dev-Board
Ghous-Ali
65.2 × 20.8 mm47 parts4LMIT1
AVR/ArduinoRugrover
adamgreen
117.7 × 100.9 mm46 parts4LNo license1
Tympan Rev D
Tympan
38 × 40 mm46 parts4LCC0-1.01
Nordic nRFNRF52840-microstamp
cheyao
37 × 25 mm45 parts4LNo license1
ESP32ESP32Marauder
aflat0o0n
78.5 × 20.1 mm45 parts2LMIT1
ESP32Esp32-Code
osmnabyram
78.5 × 20.1 mm45 parts2LNo license1
ESP32Marauder csi StickC Plus2
devedale
78.5 × 20.1 mm45 parts2LMIT1
RP2040/RP2350Nyx
21 × 51 mm45 parts2LNo license1
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