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.
ESP32FT-32-esp32-s3-dev board-
shubhisgonnastealyourcode
61 × 35 mm27 parts2LNo license1
ESP32Flipper-Zero-WIFI-Hat
Fa1dz
73 × 63.5 mm27 parts2LNo license1
Nordic nRFMdbt50q breakout
soburi
30 × 67 mm27 parts2LNo license1
LED Bar - 24P
michaelkamprath
12 × 67.5 mm27 parts2LCC0-1.01
PICPcb dev dsPIC30F6010A
shishir-dey
60 × 80 mm27 parts4LMIT1
ESP8266PCB-Shield-Security-System
KhaledGhanem0
100.6 × 78.2 mm27 parts2LMIT1
Protocentral fdc2214 hardware
Protocentral
32 × 34.7 mm27 parts2LCERN-OHL-P-2.01
ESP32ESP32-WROOM-Development-Board
moksh-pcb-design
52 × 29 mm26 parts2LNo license1
STM32APX DEVBOARD
Gabouin
23.4 × 40.3 mm26 parts2LMIT1
AVR/ArduinoBenzene--Toluene--Acetone--Formaldehyde sensor-MQ138-breakout with easyC-hardware design
SolderedElectronics
22 × 54 mm26 parts2LTAPR-OHL-1.01
AVR/ArduinoNatural gas--LPG-sensor-MQ5-breakout with easyC-hardware design
22 × 54 mm26 parts2LTAPR-OHL-1.01
STM32STM-32-PCB-Design
Fred98246
41 × 31 mm26 parts2LMIT1
AVR/ArduinoCO-sensor-MQ7-breakout with easyC-hardware design
22 × 54 mm26 parts2LTAPR-OHL-1.01
AVR/ArduinoOzone sensor-MQ131-breakout with easyC-hardware design
22 × 54 mm26 parts2LTAPR-OHL-1.01
DRV8830 FeatherWing
CedarGroveStudios
50.8 × 22.9 mm25 parts2LMIT1
AVR/ArduinoArduino nano compatible shield
Aryan-git-byte
59 × 57.3 mm25 parts2LNo license1
AVR/ArduinoLoad cell ampfilier-HX711-board with easy-C-hardware design
38 × 22 mm25 parts2LTAPR-OHL-1.01
Coleco adam ade pro embed shield
djtersteegc
55.2 × 38 mm25 parts2LMIT1
ESP32-LED-driver hardware
m-c-tech
50 × 50 mm25 parts2LNo license1
ESP32Trans
Karasik777
30 × 60 mm25 parts2LMIT1
Color---gesture sensor-APDS-9960-breakout hardware design
22 × 38 mm24 parts2LTAPR-OHL-1.01
NPM1300-breakout
rroels
40 × 29 mm23 parts2LNo license1
AVR/ArduinoDevBoard
Apishrana
36 × 70.5 mm22 parts2LNo license1
Iron skulls mask
oscgonfer
37.3 × 58.8 mm22 parts2LNo license1
WLR089U0-SAMR34-Dev-Board-LoRaWAN
jithinsisaac
35.9 × 40.9 mm22 parts2LNo license1
HackroPadX
SunritHazra
94 × 65 mm21 parts2LNo license1
FUSB302
cdg66
27.7 × 26.9 mm21 parts2LMIT1
Carrier board
doug7410
140 × 100 mm21 parts2LMIT1
Thin-Pod rev0.1
Pealie
80 × 80 mm21 parts2LCC-BY-4.01
Antenna evaluation board
cyber-murmel
133 × 70 mm21 parts4LMIT1
Riotee SensorShield
NessieCircuits
55.9 × 22.9 mm21 parts2LCERN-OHL-W-2.01
STM32Stm32-adxl345-carrier board
KrishChalana
96 × 46.5 mm20 parts2LNo license1
AVR/ArduinoArduino uno pet puller
sh123
75.4 × 53.9 mm20 parts2LGPL-2.01
Pathfinder Fidget RGB Macropad
LeoMos10
46.1 × 63.1 mm20 parts2LNo license1
AVR/ArduinoSyzygy breakout flash-1V8
adamcritchley
44.6 × 90 mm20 parts4LMIT1
ESP32Upet wifi
fachat
56.4 × 25.4 mm19 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