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.
RP2040/RP2350Qx rp2040-carrier
manhoosbilli1
66.4 × 64.4 mm42 parts2LNo license0
ESP32Raiden s01
RaidenTechnology
36 × 60 mm42 parts4LCERN-OHL-P-2.00
Void-SmartBot
amnxlab
130.5 × 133 mm42 parts4LNo license0
ESP32ESP32S3PD15W
robertxdx
60 × 50 mm42 parts4LNo license0
STM32STM32-Bluetooth
marwantm
54.2 × 28.1 mm40 parts4LNo license0
RP2040/RP2350TWSUDiySynthKit
GreeniusGenius
198.4 × 65 mm40 parts2LNo license0
STM32Jcad
xoviat
50 × 50 mm40 parts4LNo license0
ESP32Twomes temp monitor hardware
energietransitie
73 × 77 mm40 parts2LCERN-OHL-P-2.00
RP2040/RP2350Hcb wifi rp2040-devboard
Supertiger576
32 × 69.9 mm40 parts2LMIT0
STM32Mcustm32f405
11philip22
76.2 × 50.8 mm40 parts2LNo license0
SuborFpga
2bitsin
97.8 × 108 mm39 parts2LNo license0
RP2040/RP2350RP2040 Development Board
CafeAsh
26.4 × 49.4 mm39 parts4LNo license0
RP2040/RP2350Custom-Devboard
dragonruler1000
21 × 51 mm39 parts2LCERN-OHL-P-2.00
RP2040/RP2350RP-2040-Devboard
sgohils
21.5 × 51.8 mm39 parts2LNo license0
ESP32Rover cam hat
dark-Phoenix2077
61.1 × 43 mm39 parts4LNo license0
EG800K-LA-devboard
LuisHDR2024
35 × 35 mm39 parts4LNo license0
AVR/ArduinoMie1001 daq board
Chaospossum
68.6 × 53.3 mm38 parts2LNo license0
Psu breakout
techana
100 × 100 mm38 parts2LNo license0
50 google makerspace auth
ep-infosec
65.5 × 57.8 mm38 partsApache-2.00
NRF24
sneakylizard123-4
50 × 30 mm38 parts4LCERN-OHL-P-2.00
RP2040/RP2350CTR-0
lnvke
21 × 51 mm38 parts2LCERN-OHL-W-2.00
Elite t1s hat
hwkim3330
66.2 × 49.2 mm38 parts4LMIT0
AVR/ArduinoArduino dolly
hollop90
26.8 × 53 mm37 parts4LNo license0
Cm5-carrier
jl-grey-man
80 × 60 mm37 parts4LNo license0
Vipr
goog-yaml
30 × 65 mm37 parts2LMIT0
ESP32Cloudboard rev1
69.5 × 63 mm37 parts6LNo license0
Bandpass amplifier shield
SAakbarnezhad
68.6 × 53.3 mm37 parts4LCC-BY-SA-4.00
RP2040/RP2350RP2040-devboard
Dhruv2212-star
44 × 54 mm37 parts4LNo license0
AD9744-Ersatz-Eval-Board-Rev.-A
DarkArtLabs
48 × 48 mm37 parts2LNo license0
Kicad oil level sensor
CrtomirJuren
160 × 100 mm37 parts2LNo license0
Tensorrail
skillsbuffcom
102 × 70 mm37 parts2LNo license0
KiberovDev
ahammed-shaz
32 × 29 mm36 parts2LNo license0
Odc cc2500
matthewgpetrin
34.4 × 26.4 mm36 parts4LNo license0
PICPlaca dezvolatre pic
Adrian-71
62.1 × 72.1 mm36 parts2LMIT0
STM32Steering
AQUA-Warrior
67 × 33 mm36 parts2LNo license0
RP2040/RP2350MyDevboard
Dee-24r
21.5 × 52.2 mm36 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