2,573 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.
AN AUDIO BREAKOUT
laforestlabs
87.9 × 32 mm13 parts2LNo license0
Fab-Drawing caravel-M.2-card-QFN
Rimal12345
22 × 22 mm11 parts4LNo license0
Groundstation 2400 Hat
pete4radio
65 × 56.5 mm10 parts4LNo license0
AVR/ArduinoArduino nano breakout board
baleshwarece-jpg
45 × 80 mm8 parts2LNo license0
Hangbot breakout
ep-infosec
42 × 42 mm8 parts2LCC-BY-4.00
Breakout OSRAM TMF8806-1AM V1
saadmaziz
19 × 21.6 mm7 parts2LMIT0
Breakout riser
durangoretro
52.1 × 53.3 mm4 parts2LNo license0
Breakout 32 DIP 0 6 inch
emperor-hadrian
36.1 × 43.7 mm3 parts2LNo license0
Eecv breakout
rusefi
140.8 × 53.7 mm9 parts4LGPL-3.01.2k
Rj45 breakout
rene-dev
15.2 × 53.8 mm3 parts2LGPL-3.0979
Wire power input
Luos-io
20.3 × 24.5 mm4 parts2LMIT547
ESP32ESP32-PoE Rev C
OLIMEX
28 × 75 mm110 parts2LApache-2.0407
Panel saw eval board
PantsForBirds
57 × 44 mm3 parts2LGPL-3.0322
ESP32ESP-EVB
75 × 57.2 mm105 parts4LApache-2.0285
Usbc power breakout af
CRImier
46 × 46 mm37 parts2LGPL-3.0253
Adrf5020 breakout
loxodes
29 × 36 mm18 parts4LNo license206
STM32STM32L433CBT Dev Board
embeddedalpha
30.2 × 50.3 mm29 parts2LMIT75
STM32Stm32 devboard routed
rjwalters
60 × 40 mm17 parts2LMIT63
ESP32ESP-WROOM-02 Breakout
vul-os
27.9 × 25.4 mm4 parts2LApache-2.055
Tle9104-breakout
34.5 × 42.2 mm20 parts4LNo license48
Carvel Breakout board as M.2 Card
efabless
22 × 22 mm9 parts4LNo license40
MegaII Breakout
baldengineer
91.4 × 91.4 mm21 parts2LMIT33
FPGAFpga hat
Wren6991
65 × 56.5 mm87 parts4LApache-2.031
ESP32Feather Duo
ISSUIUC
40 × 40 mm39 parts4LNo license31
LCCCANCape
RobertPHeller
54.6 × 98.3 mm27 parts2LCC-BY-4.024
AVR/ArduinoShield kb1
tangybbq
65.5 × 53 mm18 parts2LNo license21
SEM card breakout
abzman
253.9 × 360.7 mm4 parts2LUnlicense19
AVR/ArduinoNQSAP Output Display
TomNisbet
102 × 96 mm18 parts2LMIT18
PICPic32mx jtag
azonenberg
73 × 54 mm36 parts4LBSD-3-Clause17
RP2040/RP2350T20 pmod
MiSTle-Dev
53.6 × 71.4 mm15 parts2LNo license17
Rifle shield v1
DAlexis
43 parts2LGPL-3.016
ESP32ESP32-Writer-CH340X
74th
14.2 × 10.7 mm7 parts2LMIT8
VESC Card Breakout
UofSSpaceTeam
67.1 × 33.5 mm9 parts2LNo license5
Breakout SOT457 SOT23-6 panel
Squantor
55.4 × 51.3 mm6 parts2LMIT4
VIC 6560 Breakout RevB
BrettHallen
52.1 × 26.7 mm3 parts2LNo license4
Oscillator Carrier Board
JordanAceto
99.1 × 99.1 mm34 parts2LCC-BY-4.02
Browse boards by part
AMS1117-3.3 1287USBLC6-2SC6 1056RP2040 725W25Q128JVS 444AP2112K-3.3 408TL072 347ESP32-S3-WROOM-1 324TL074 308CH340C 290L7805 29074HC595 267USBLC6-2P6 260Pico 258LM358 237AP2112K-3.3TRG1 22474LS04 207ESP32-WROOM-32 203Arduino_Nano_v3.x 202LM7805_TO220 20174LS245 18474LS138 176SRV05-4 17674LS08 17574LS32 175