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.
Mini breakout v0.1
northernpaws
20 × 63.5 mm13 parts4LCERN-OHL-S-2.01
Psu board
jevans3142
99.1 × 53.3 mm13 parts2LNo license1
Timer Unit
oberrow
58 × 47 mm12 parts2LMIT1
STM32Mp153-rgb carrier
4ms
87.2 × 87.4 mm11 parts2LNo license1
HV2707 breakout board
Jolt8
32.8 × 25.3 mm3 parts2LNo license1
ESP32DSP Regulator hat
Phil-CIA
100 × 100 mm130 parts2LNo license0
Interface board
TrendBit
65 × 56 mm121 parts2LGPL-3.00
88 Pin Vag Breakout
lanjay1
142 × 58 mm91 parts2LGPL-3.00
Fab-Drawing clear dev v1
Rimal12345
76.2 × 73.8 mm84 parts2LNo license0
Hat
saktheeswaranswan
65 × 56 mm81 parts2LNo license0
ESP32Hat board
73.2 × 99.9 mm79 parts2LNo license0
HAT ver 7
ConnectBox
57.4 × 71.6 mm72 parts2LNo license0
Xm dvi in
mikegoelzer
39.9 × 37.2 mm37 parts4LCustom license0
ESP32Esp32s3-devkit
eshelton328
59.3 × 38 mm36 parts4LNo license0
ESP32Esp32s3-devkit
59.3 × 38 mm36 parts4LNo license0
Caravel daughter
pohantw
25.4 × 25.4 mm36 parts2LNo license0
Panel
DaveRichmond
94.1 × 72.4 mm36 parts2LCustom license0
Raspberry PiRaspi hat
SEDS-PSU
65.1 × 58.7 mm34 parts4LNo license0
ALU
Robert-Riordan-UCD
100.4 × 56.8 mm33 parts2LCERN-OHL-P-2.00
PICPIC18F4550
cristobalcuevas
100 × 70 mm33 parts2LNo license0
WCH CH32/CH55xGateway node
koko69420
60 × 55 mm31 parts2LNo license0
Toolhead Board Breakout
chpaxson
75 × 75 mm29 parts2LNo license0
Tp5410 breakout
ep-infosec
30 × 30 mm27 parts2LCC-BY-4.00
Board-C-ufl
Brunner-neutrino-lab
69.7 × 99 mm25 parts4LNo license0
Csp cr112
90 × 72 mm22 parts4LNo license0
ESP Breakout V2
617quan
127 × 70.2 mm20 parts2LNo license0
Breadboard power supply
harris8099
30.5 × 52.8 mm17 parts2LNo license0
DAC breakout
AvalonSemiconductors
52.6 × 18.7 mm17 parts2LApache-2.00
Pi zero shield
ocean-discovery-league
30.8 × 65 mm16 parts2LNo license0
Raspberry PiRaspberryPiFullStackHAT
CrtomirJuren
28.2 × 17.9 mm9 parts2LNo license0
SD Breakout
AhanDatta
18.6 × 23.8 mm9 parts4LNo license0
Shield Adruino MEGA2560 Rev3 DoubleRow
NadjB
101.6 × 53.3 mm8 parts2LNo license0
PCA9548A Breakout
lnpanini
66 × 76.2 mm7 parts2LNo license0
TC106 Pi READY RESET Breadboard
jtsuka
90 × 70 mm7 parts2LNo license0
Breakout
nrdsp
37.6 × 22.2 mm5 parts2LNo license0
STM32 Value Line Discovery - Shiled board
buildwithtrace
43.2 × 84.5 mm3 parts2LCustom license0
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