2,089 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.
AVR/ArduinoSH-RPi hardware
hatlabs
65 × 56.5 mm153 parts4LCC-BY-4.056
ESP32Onyx-Stepper-Motherboard
CuriousMotor
105.2 × 71.1 mm90 parts2LMIT56
SIM868 Based GSM+GPRS+GNSS+BT Module
vul-os
38.1 × 38.1 mm62 parts2LApache-2.055
RadioBerry
pa3gsb
85.3 × 56 mm114 partsNo license54
Rf sig gen
joshajohnson
50 × 22.9 mm89 parts4LNo license52
Nordic nRFQalble
somepin
224.8 × 89.9 mm79 parts2LGPL-3.051
Nordic nRFAscom wireless flat panel
jlecomte
66.5 × 51.3 mm13 parts2LMIT51- schematic only · 160 parts
Lpddr4-test board
antmicro
160 partsApache-2.051 
BreadControlV3
Architeuthis-Flux
82.6 × 53.3 mm69 parts2LGPL-3.050
Dabao
baochip
21 × 41 mm39 parts2LCERN-OHL-W-2.049
RP2040/RP2350GateMateA1-EVB Rev B
OLIMEX
120 × 80 mm288 parts4LGPL-3.046
RP2040/RP2350Kiwikit rpi pico
kiwih
100 × 100 mm46 parts2LMIT46
AVR/ArduinoNANO-Minipops
NANOmodules
68.6 × 53.3 mm18 parts2LNo license46
AVR/ArduinoPhaseLatch
AndersBNielsen
68.8 × 53.6 mm120 parts4LNo license45
Logitech Shifter Shield for Pro Micro
dmadison
31.2 × 48.1 mm7 parts2LGPL-3.044- schematic only · 104 partsFPGA
Kintex-410t devboard
104 partsApache-2.043 
Feather rak3172
teapotlaboratories
51 × 23.1 mm44 parts2LMIT42
FPGAICE40HX8K-EVB Rev B
65 × 67 mm97 parts4LApache-2.041
RP2040/RP2350RKD-OLD
PTALTS-LK
100 × 94 mm86 parts2LGPL-3.041
Caravel-Nucleo v2-M.2
efabless
73.4 × 92.5 mm90 parts2LNo license40
STM32H616 devboard
Kononenko-K
58 × 66 mm161 parts4LCERN-OHL-P-2.039
OpenEuroBoard
sensai7
300 × 100 mm135 parts2LGPL-3.039
ESP32Sonatino
luminationlabs
65 × 30 mm117 parts4LCERN-OHL-P-2.039
Bobbycar
Jana-Marie
61.7 × 26.9 mm28 parts2LGPL-3.039
ESP32LoRa-Gateway-E220
ezcGman
65.4 × 63 mm11 parts2LNo license39
Universal-ITX-Backplane
spark2k06
181 × 184.9 mm65 parts4LCERN-OHL-1.238
Paw3395
badjeff
15.5 × 28 mm18 parts2LCERN-OHL-P-2.038
Tmc2209 devboard
Neumi
69 × 53.8 mm35 parts2LNo license37
Boatcontrol
antevens
535 × 308 mm623 parts4LSHL-2.136
MuBook
LtBrain
170.2 × 142 mm260 parts4LMIT36
RP2040/RP2350Mitayi-Pico-D1
CIRCUITSTATE
51 × 21 mm51 parts2LMIT36
KiCad-Templates
AchimPieters
65 × 30 mm1 parts2LMIT36
Klipper nano expander
orobardet
65.3 × 18.3 mm34 parts2LMIT35
Raspberry PiPiZeroHat
vasya-zh
65 × 30 mm1 parts2LNo license35
Artix7-PCIe
westonb
100 × 115.2 mm196 parts4LNo license34
Fract
skarrmann
180 × 75 mm72 parts2LMIT34
Browse boards by part
AMS1117-3.3 899USBLC6-2SC6 763RP2040 566W25Q128JVS 345AP2112K-3.3 273TL072 269TL074 250ESP32-S3-WROOM-1 229CH340C 221L7805 208Pico 19274HC595 185USBLC6-2P6 174LM358 16874LS04 160SRV05-4 158AP2112K-3.3TRG1 154ESP32-WROOM-32 15374LS245 14474LS138 138W25Q128JVSIQ 135Arduino_Nano_v3.x 13474LS00 133TP4056 130