2,363 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.
ESP32Brickcontroller
ebastler
63 × 63 mm100 parts2LCERN-OHL-P-2.01
CS4272-Dev-Board
tomeh2
83.1 × 57.6 mm96 parts2LMIT1
AVR/ArduinoEUPLA CONE CORE
PineConeMechatronics
76.2 × 54 mm95 parts2LCERN-OHL-P-2.01
STM32RBPS
Chirag-Vadrali
100 × 80 mm94 parts4LNo license1
PICUsb controller-32
jcksnvllxr80
194.3 × 109.2 mm93 parts2LNo license1
STM32CustomDisplay-Hardware-F7
svcguy
76.2 × 68.6 mm92 parts4LGPL-3.01
Caravel-Nucleo v2-M.2
chipfoundry
73.4 × 92.5 mm90 parts2LNo license1
Hat
DagaVedant
216.8 × 226.3 mm89 parts4LNo license1
AVR/ArduinoFP2800A-Tester
Qeteshpony
66 × 68.6 mm89 parts2LBSD-2-Clause1
Pmod analyzer
fm4dd
46 × 53 mm88 parts2LCERN-OHL-1.21
Nordic nRFRiotee Module
NessieCircuits
15.2 × 27.2 mm87 parts4LCERN-OHL-W-2.01
ESP32ESP32 IoT Dev Board
EngMeesh
82.9 × 53.8 mm85 parts4LMIT1
ESP32Msxnano dock
Papipapito
120 × 70 mm85 parts2LNo license1
ESP32ESP32-IoT-Development-Board
riteshsalikeripatil
88.7 × 55.6 mm85 parts4LMIT1
AVR/ArduinoEvaBoard
7vgn
160 × 100 mm84 parts2LNo license1
Microchip SAMTsunamiPi
robertsonics
65 × 56 mm84 parts2LNo license1
RP2040/RP2350SumaShield
hugelton
83 × 99 mm83 parts2LMIT1
PCB-breadboard protoboard hardware design
SolderedElectronics
84 × 54 mm83 parts2LTAPR-OHL-1.01
ESP32Esp devboard prateek
Prateek-elec
79.8 × 55.3 mm82 parts4LMIT1
Nuclone small MCP355X
Squantor
50 × 50 mm81 parts2LMIT1
ESP32Esp32-c3-02-KiCAD-Design
kaushal1020
79.3 × 53.6 mm80 parts4LNo license1
ESP32H3S-Dev-V1
hobbyiot
85 × 56 mm79 parts2LMIT1
TorxHAT
RobotStudyCompanion
65 × 56.6 mm78 parts2LCustom license1
ESP32HoloCade Driver Shield
scifiuiguy
118 × 84.5 mm78 parts2LMIT1
8 Relay Board
sparkfunX
87.6 × 81.3 mm76 parts4LMIT1
ESP32BreatheTrack
n1vaan
45.1 × 68.9 mm75 parts4LNo license1
RP2040/RP2350Whitefox
nxrmqlly
41 × 61.6 mm73 parts4LCERN-OHL-S-2.01
Pi hat LoRa
Doenec
65 × 56 mm72 parts2LMIT1
RISC-VWire connect checker
74th
53.5 × 69.5 mm72 parts2LMIT1
Powerups
PowerFeather
65 × 30.5 mm70 parts4LCC-BY-SA-4.01
RP2040/RP2350ICEPico
SorenGilkeyJohnson
21 × 51 mm69 parts4LCERN-OHL-S-2.01
SX1255-Tetra-TMO-mini-HAT
labdvm
65 × 31 mm69 parts2LNo license1
AVR/ArduinoZCS18
ZeniteSolar
102.9 × 45.7 mm69 parts2LLGPL-3.01
STM32TITAN Board 2022
hpvdt
65 × 56 mm69 parts2LNo license1
BLUENRG1 Generic Bluetooth Board
GeneRAD
34.5 × 36.8 mm67 parts2LNo license1
MAX6951-64-LED-matrix
jedp
63 × 70.1 mm65 parts2LNo license1
Browse boards by part
AMS1117-3.3 1069USBLC6-2SC6 866RP2040 632W25Q128JVS 394TL072 319AP2112K-3.3 313TL074 281ESP32-S3-WROOM-1 268CH340C 249L7805 229Pico 22174HC595 218USBLC6-2P6 206LM358 20074LS04 180AP2112K-3.3TRG1 179ESP32-WROOM-32 169LM7805_TO220 167SRV05-4 165Arduino_Nano_v3.x 16474LS245 160W25Q128JVSIQ 15774LS138 15574LS32 152