2,246 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.
OwnPod
lori28167
65 × 56.5 mm39 parts2LGPL-2.04
STM32Ts13 dev kit
tropicsquare
20 × 46 mm39 parts2LCERN-OHL-P-2.04
AVR/ArduinoLoraWAN-Stick
lostangles
124.2 × 22.9 mm33 parts2LNo license4
My-Own-UPS-HAT-for-Raspberry-Pi-Zero
harshverma27
65 × 30 mm31 parts2LNo license4
IO-expander-MCP23017-breakout hardware design
SolderedElectronics
22 × 38 mm29 parts2LTAPR-OHL-1.04
Fuel gauge-BQ27441-breakout hardware design
38 × 22 mm27 parts2LTAPR-OHL-1.04
Morphesp240-addon devboard
ccadic
41.9 × 88.9 mm24 parts2LNo license4
MCF8316A
dfieschko
28.7 × 34.3 mm22 parts2LGPL-3.04
Lab scale gantry crane
Cosys-Lab
68.6 × 53.3 mm22 parts2LMIT4
ESP32Kits
Poluino
90.2 × 53.3 mm15 parts2LTAPR-OHL-1.04
Riotee CapacitorShield
NessieCircuits
55.9 × 22.9 mm11 parts2LCERN-OHL-W-2.04
Egg LDO 1000
Plaenkler
14 × 15 mm10 parts2LBSD-3-Clause4
PCB AD5245 Digital Potentiometer
CedarGroveStudios
17.8 × 15.2 mm10 parts2LMIT4
STM32STM8S001J3 tiny board
HexRx
20 × 14 mm10 parts2LMIT4
HMD-Fusion-DIY-Cases
DevonHope
145 × 27 mm7 parts2LMIT4
RP2040/RP2350Micropython and pcb class-2022
DC540-Nova
111.8 × 73.7 mm7 parts2LApache-2.04
Waveblaster to midi module adapter
nikitalita
33 × 94.5 mm6 parts2LApache-2.04
Raspberry PiFEDWatcher
matiasandina
64 × 56.1 mm6 parts2LMIT4
Lora development boards
leonardoward
69 × 50 mm6 parts2LApache-2.04
Hdmi pmod
sparkengineering
40 × 20 mm6 parts4LCERN-OHL-P-2.04
MA702-Breakout-Board
motionlayer
23 × 23 mm6 parts2LMIT4
FPGAIceduino
RubenVoell
80 × 100 mm241 parts4LCERN-OHL-1.23
Demo board
Charmander542
62 × 80.3 mm161 parts2LNo license3
STMP1-A13-EVB
OLIMEX
90 × 70 mm138 parts4LGPL-3.03
RP2040/RP2350Cross point exp brd mini red2-smd
damercer
127 × 100.3 mm122 parts2LCC-BY-SA-4.03
Ksoloti Core
ksoloti
120 × 100 mm96 parts4LNo license3
ESP32ESP32 Trainer
EmersonEE
100 × 100 mm91 parts2LNo license3
AVR/ArduinoLr hudiy rpi hat
sedlons
87.4 × 56 mm90 parts2LNo license3
RPi-CNC-HAT
fedor2018
65 × 56.5 mm84 parts2LNo license3
PCB-breadboard hardware design
84 × 54 mm83 parts2LTAPR-OHL-1.03
STM32Audio-Devboard
Outdatedcandy92
56 × 37 mm80 parts4LCERN-OHL-W-2.03
Raspberry PiChart plotter hat
gpgreen
65 × 56 mm68 parts4LNo license3
STM32AuroraF4
aleko-khomasuridze
85.1 × 50.2 mm65 parts4LNo license3
STM322027-SAE-Electric-VCU
VikingMotorsports
85.2 × 107.8 mm63 parts2LNo license3
Ch569evb
SdtElectronics
72 × 48.7 mm60 parts4LNo license3
STM32 Nucleo144 Memory Shield
meerstern
70 × 97 mm59 parts2LNo license3
Browse boards by part
AMS1117-3.3 1052USBLC6-2SC6 844RP2040 613W25Q128JVS 390TL072 317AP2112K-3.3 312TL074 280ESP32-S3-WROOM-1 267CH340C 246L7805 228Pico 21974HC595 217USBLC6-2P6 203LM358 19674LS04 177AP2112K-3.3TRG1 174ESP32-WROOM-32 168SRV05-4 165Arduino_Nano_v3.x 162LM7805_TO220 15974LS245 15874LS138 153W25Q128JVSIQ 15374LS32 149