3,813 open source AVR/Arduino boards
ATmega and ATtiny microcontrollers, Arduino-compatible boards and Arduino shields. 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/ArduinoSpaceduino
UWCubeSat
69 × 69 mm81 parts2LMIT1
AVR/ArduinoVoidLens-DIY-VR-Headset-V2
scattercat-123
44.4 × 60.3 mm79 parts2LNo license1
AVR/ArduinoAudio Slice
LOEWE-emergenCITY
100 × 100 mm79 parts2LNo license1
AVR/ArduinoPlasma Pilot3
xdmattz
85.1 × 38.1 mm78 parts2LNo license1
AVR/ArduinoKeyboard3-L
e04
130.8 × 111 mm78 parts2LNo license1
AVR/ArduinoZ80Card
galjonsfigur
85.6 × 54 mm77 parts2LGPL-3.01
AVR/ArduinoCoconut
morikoudayo
212.6 × 79.2 mm77 parts2LNo license1
AVR/ArduinoDaq
SergioGasquez
165.1 × 110 mm76 parts2LMIT1
AVR/ArduinoArduino-Mini-Drone
gaurav23b
58.8 × 59.1 mm76 parts2LNo license1
AVR/ArduinoLabrador backup
EspoTek
36.8 × 34.7 mm75 parts2LNo license1
AVR/ArduinoEdge key seventeen
wirehead
112.7 × 99.7 mm74 parts2LNo license1
AVR/ArduinoRadio
ojousima
35 × 41 mm74 parts4LCustom license1
AVR/ArduinoCpl adc board
matham
101.6 × 50.8 mm74 parts4LNo license1
AVR/ArduinoSDG3
christopherwj
100 × 100 mm73 parts2LNo license1
AVR/ArduinoLedMatrixGame
hotkeysoft
50 × 100 mm72 parts2LMIT1
AVR/ArduinoMIDIFAM
mikeyfarrow
29 × 86.6 mm72 parts2LNo license1
AVR/ArduinoBebl v2
wyolum
80 × 24 mm72 parts2LNo license1
AVR/ArduinoMiniboard
siderakb
50 × 18 mm72 parts4LMIT1
AVR/ArduinoRtty transmitter
bazsimarkus
120 × 60 mm71 parts2LNo license1
AVR/Arduino5 to 28v
Sussex-Neuroscience
462.3 × 270.5 mm71 parts2LGPL-3.01
AVR/ArduinoPqdb
rmaalmeida
146.1 × 141 mm70 parts2LNo license1
AVR/ArduinoZCS18
ZeniteSolar
102.9 × 45.7 mm69 parts2LLGPL-3.01
AVR/ArduinoBattery capacity meter
ikatkov
100 × 99.9 mm68 parts2LNo license1
AVR/ArduinoHomegreen-Node
pmalessa
97 × 23.7 mm67 parts2LNo license1
AVR/ArduinoBldc driver
acshi
46.5 × 26.5 mm67 parts4LNo license1
AVR/ArduinoTFUNIPAYLOAD01
ThunderFly-aerospace
70.6 × 50.3 mm67 parts2LGPL-3.01
AVR/ArduinoDecoder
ksmonkey123
97.5 × 67.1 mm66 parts2LMIT1
AVR/ArduinoVehicle controL module 0.1.0
WATonomous
2.5 × 2.5 mm65 parts2LNo license1
AVR/ArduinoKiCad-LarsonScanner
kaderud
174.4 × 60.3 mm63 parts2LCustom license1
AVR/ArduinoRP2040-PinTest
red-scorp
57.2 × 53.3 mm62 parts2LNo license1
AVR/ArduinoPTDriver
wallaceowen
100 × 50 mm61 parts2LMIT1
AVR/ArduinoGatekeeper
Ingimarsson
100 × 100 mm61 parts2LMIT1
AVR/ArduinoRTB D98
git4dcc
12.7 × 8.8 mm60 parts4LApache-2.01
AVR/ArduinoEgpad
ohkiba
111.1 × 133.4 mm59 parts2LMIT1
AVR/ArduinoPayload gimbal
icl-rocketry
94 × 94 mm59 parts2LMIT1
AVR/ArduinoLoopingLouino
RedlabsDE
50 × 30 mm58 parts2LNo license1
Browse boards by part
AMS1117-3.3 1847USBLC6-2SC6 1502RP2040 1017W25Q128JVS 654AP2112K-3.3 635ESP32-S3-WROOM-1 488TL072 446L7805 43674HC595 404TL074 404CH340C 392LM358 367Pico 356USBLC6-2P6 351AP2112K-3.3TRG1 345Arduino_Nano_v3.x 317LM7805_TO220 315ProMicro 29774LS04 285ESP32-WROOM-32 285PC817 260SRV05-4 25874LS245 257TP4056 250