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.
Breakout pmod
pbozeman
88.6 × 97.9 mm13 parts4LMIT5
IRQ-TestHarness
Manuvr
20.9 × 44.7 mm22 parts4LNo license4
Breakout sharp mem lcd tiled
Squantor
59.5 × 49 mm17 parts2LMIT4
AVR/ArduinoNANO HAT
danielwilczak101
51.6 × 59.1 mm16 parts2LNo license4
AVR/ArduinoMeme shield 2019
ParadigmHyperloop
68.6 × 53.3 mm8 parts2LCustom license4
DAC7678 16TSSOP
dfieschko
15.8 × 20.8 mm5 parts2LGPL-3.04
Ts17-tropic01-mini
tropicsquare
15.2 × 12 mm5 parts2LCERN-OHL-P-2.04
AVR/ArduinoUno hat dev (1)
Charmander542
155 × 58.1 mm98 parts2LNo license3
RP2040/RP2350Cross point exp brd mini lc
damercer
162.6 × 88.9 mm57 parts2LCC-BY-SA-4.03
UB8840 breakout
89Mods
114.3 × 31.1 mm11 parts2LMIT3
88 Pin Vag Breakout
rusefillc
142 × 58 mm91 parts2LGPL-3.02
88 Pin Vag Breakout
rusefi
142 × 58 mm91 parts2LNo license2
Microchip SAMWLMS-v0 2 1-motherboard panel
miniscope
48 × 37.5 mm80 parts8LCERN-OHL-S-2.02
STM32X drone controller
Monacrylic
55 × 55 mm65 parts4LNo license2
STM32TCM STM32F302C8T6 - Breakout Board
LHRIC
113.8 × 74.9 mm58 parts2LNo license2
STM32STM32F091 Dev Board
lagunter145
20.3 × 85.1 mm46 parts4LNo license2
Nucleo shield
mekatronik-achmadi
70.9 × 66.5 mm31 parts2LNo license2
ESP32Esp32s3wroom devboard
MTalon63
29 × 46.7 mm27 parts2LCustom license2
Breadboard power supply v1
mhered
27.8 × 56.4 mm17 parts2LNo license2
LT3042 breakout with error done
ljufa
10.2 × 14.6 mm10 parts2LMIT2
DEV-UUSB-PSU
qboards
21.2 × 18.9 mm8 parts2LCC-BY-SA-4.02
MCP4725 breakout board for Arduino
6r1d
16.8 × 14.8 mm7 parts2LMIT2
Sitina 1 JTAG Breakout
novvoo
21.5 × 14 mm5 parts2LMIT2
RAK3172 BREAKBOARD
galopago
29.4 × 36.8 mm4 parts2LMIT2
RCP PWM breakout
reivax-boucoi
99.5 × 75.2 mm130 parts4LNo license1
Daughterboard before 4layer trace wipe
BoomBoxRobotics
155 × 80.6 mm105 parts2LCC0-1.01
ESP32ESP32-WROOM-32E + CC1101 Multiband
bdini13
90 × 36 mm105 parts4LCustom license1
Clear Chip Development Board
chipfoundry
76.2 × 73.8 mm84 parts2LNo license1
Giga shield v04 routed v2
ajokela
155 × 90 mm60 parts2LBSD-3-Clause1
NXPNuclone LPC844M201BD64
48.3 × 76.2 mm56 parts2LMIT1
Radxa Shield Rev. 1.1
Pro-engineer616
56 × 65.1 mm55 parts2LNo license1
OperationalAmplifierExamples
mwwhited
35 × 63.5 mm48 parts2LMIT1
Teacup interposer
thingino
133.4 × 31.3 mm29 parts4LGPL-3.01
8051 Standalone Dev Board
anshukumar146
54.6 × 52.3 mm24 parts2LNo license1
Computer breakout
hprd
90.8 × 64.5 mm22 parts2LNo license1
AVR/ArduinoDCC Decoder Shield
acwright
55 × 55 mm19 parts2LMIT1
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