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.
Z3817a breakout
charlieh0tel
77.3 × 76.3 mm26 parts2LBSD-3-Clause0
Board-D-smp
Brunner-neutrino-lab
75.1 × 120 mm25 parts4LNo license0
Shaper
168 × 80 mm22 parts4LNo license0
Gotek-PS2
DaveRichmond
77.2 × 63 mm18 parts2LCustom license0
Tps63070-breakout
eshelton328
24.7 × 22.9 mm15 parts2LNo license0
Tps63070-breakout
24.7 × 22.9 mm15 parts2LNo license0
Caravel breakout QFN
pohantw
25.4 × 25.4 mm14 parts2LNo license0
AVR/ArduinoArduino due shield
chpaxson
101.6 × 53.3 mm13 parts2LNo license0
Revo servo hat
ratmuds
22 × 27 mm10 parts2LMIT0
5V Regulator
CrtomirJuren
48.3 × 29.2 mm8 parts2LNo license0
Level shifter breakout
AvalonSemiconductors
19.7 × 32.1 mm7 parts2LApache-2.00
Shield
NadjB
68.6 × 53.4 mm6 parts4LNo license0
BME690 Breakout Board
satomm1
18.3 × 16.7 mm4 parts2LMIT0
Bus breakout
saktheeswaranswan
57.2 × 41.9 mm4 parts2LMIT0
STM32Stm32f205-breakout board
christiangroothuis
37 × 33.5 mm3 parts2LGPL-3.00
ESP32Easyduino ESP32
Hanqaqa
28.4 × 47.9 mm29 parts4LCERN-OHL-P-2.0746
L0 USBA
Luos-io
20.3 × 15.3 mm19 parts2LMIT547
ESP32ESP32-PoE Rev M1
OLIMEX
28 × 80 mm130 parts4LApache-2.0407
Panel proto lna board
PantsForBirds
69 × 44 mm12 parts2LGPL-3.0322
ESP32ESP32-EVB
75.2 × 74.7 mm147 parts2LApache-2.0285
RP2040/RP2350Blep audio
CRImier
60.6 × 24.1 mm75 parts2LGPL-3.0253
Cs43l22 breakout
blakesmith
27.9 × 37.3 mm32 parts2LNo license167
FLIPPER MOD BUS
ElectronicCats
62.8 × 23.2 mm15 parts2LNo license130
STM32Dev Pro
embeddedalpha
40 × 90 mm59 parts2LMIT75
SOIC24 To DIP24 Breakout Board
vul-os
30.5 × 17.8 mm6 parts2LApache-2.055
Caravel
efabless
54.5 × 52.1 mm72 parts2LNo license40
Flyback breakout v1.0
RoboJackets
211.5 × 89 mm51 parts2LApache-2.032
Hat modder
bitfieldlabs
64.4 × 81 mm28 parts2LNo license32
FPGA2019-07-07 17:15:58 fpga hat
Wren6991
65 × 56.5 mm87 parts4LApache-2.031
Hp breakout
rabidaudio
20.3 × 14 mm20 parts2LMIT31
NXPLPC1758-MultiIOBoard
RobertPHeller
141 × 146.1 mm106 parts2LCC-BY-4.024
Nuclone devboard small 2 layer USB-C data
Squantor
50 × 50 mm36 parts2LMIT24
NQSAP-PCB Instruction Register and Ring Counter
TomNisbet
102 × 96 mm52 parts2LMIT18
SA818 Breakout
brucemack
56 × 49 mm14 parts2LGPL-3.018
Lpr rgmii phy
azonenberg
35 × 73.5 mm82 parts4LBSD-3-Clause17
MAX7219 Breakout System
MobiFlight
80 × 80 mm29 parts2LNo license16
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