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.
Feather valve driver
cbs-ntcore
127 × 63.5 mm73 parts2LNo license0
STM32Kicad ai checker
ilutchenko
65 × 56 mm73 parts2LNo license0
RP2040/RP2350Ntp devboard
vighnesh-sawant
42.4 × 51 mm72 parts4LNo license0
Caravel
pohantw
54.5 × 52.1 mm72 parts2LNo license0
Raspberry PiEvj55
hpeyerl
99.1 × 89.8 mm72 parts2LBSD-2-Clause0
STM32Ghost feather v1
PanBabinicz
106.6 × 106.7 mm71 parts4LNo license0
Blast-Shield
JAS-UCF
90 × 75.9 mm69 parts2LNo license0
ADE9000 Breakout
whatnick
65 × 55 mm68 parts2LTAPR-OHL-1.00
Astra cm5-nano
david0ha
55 × 40 mm67 parts8LCustom license0
RP2040/RP2350Eimer
AndrewJ-25
78 × 68 mm66 parts2LMIT0
64-LED-Matrix
jedp
109.2 × 116.8 mm65 parts2LNo license0
ESP8266Air quality
NilsEngelbach
72 × 72 mm65 parts2LNo license0
RP2040/RP2350Nano LoRa
AayanShaikh007
21 × 51 mm65 parts4LCC-BY-NC-4.00
ESP32Playbridge ps1-wireless adapter
fabPlane
56.3 × 62 mm63 parts4LNo license0
RP2040/RP2350Vanchor helm
AlexAsplund
125 × 95 mm63 parts2LNo license0
STM32PRT ATHIQ BQ24072 DevBoard
bajraan
100 × 100 mm63 parts4LCC0-1.00
GSM GPS HAT
shahariyar-maraz
37.6 × 35 mm62 parts4LNo license0
RP2040/RP2350Bluetooth-Devborad
GodOfStrategy
85.3 × 54.3 mm62 parts4LMIT0
Air780eg cellular modem board
manhoosbilli1
30.2 × 27 mm62 parts2LNo license0
GSM GPS HAT
37.6 × 35 mm62 parts4LNo license0
RP2040/RP2350Glidesat
hjw1112
51.8 × 42 mm62 parts4LNo license0
Raspberry PiCM5-Carrier-Board-Rev2
AsadImranRafique
120 × 40 mm60 parts6LApache-2.00
Microchip SAMPanel
4project-co-il
101.4 × 69.4 mm60 parts2LMIT0
Raspberry PiOsdev hat
alxhub
65 × 56.5 mm60 parts2LMIT0
STM32Boardoza VL53L7CX Multizone ToF Depth Sensing Eval Board
Boardoza
40.3 × 40.3 mm59 parts2LCC-BY-SA-4.00
ESP32Plant as button
AlBarbe
77.1 × 71 mm58 parts4LNo license0
ESP32ESP32-USB-C-Development-Board
hooria17webset
133 × 113 mm57 parts4LNo license0
RP2040/RP2350OpenScent
anxndsgn
54 × 30 mm57 parts4LCC-BY-NC-4.00
Dual Power Supply
HighCarlSagan
150 × 80 mm57 parts4LCustom license0
STM32Stm32f407VGTx dev board-PCB-
Adamos-khalilos
80 × 100 mm56 parts2LMIT0
-fpga hash accelerator
Nivi77
220 × 180 mm56 parts4LMIT0
ESP32DH-LRC-0
lnvke
46 × 40 mm55 parts4LNo license0
ESP32Esp32-s3-board nowireless
Hita-haru
65 × 45 mm55 parts2LNo license0
Raspberry PiAi orchestrator
ianisms
91.4 × 121.9 mm54 parts6LMIT0
STM32STM32-Isolated-RS485-DevBoard
jiazhengfu912-lang
65 × 40 mm53 parts2LNo license0
ESP32Astra board
verIdyia
60 × 40 mm53 parts2LNo license0
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