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/ArduinoFan controller with ch
ferrybig
60 × 60 mm46 parts2LNo license0
AVR/ArduinoPCB Test
peterladur
51.6 × 67.2 mm45 parts2LNo license0
AVR/ArduinoControl
pbrook
88.9 × 58.4 mm45 parts2LNo license0
AVR/ArduinoFlowcontrol BL
bl433
68 × 89.5 mm44 parts4LMIT0
AVR/ArduinoAirtap
ajkumar-1907
50 × 100 mm44 parts2LMIT0
AVR/ArduinoReleaseBoard
AvalonROV
80 × 30 mm43 parts2LNo license0
AVR/ArduinoModuleV440
chipsi
30 × 61.4 mm42 parts2LCC-BY-NC-4.00
AVR/ArduinoModuleV440
Arkariusz
30 × 61.4 mm42 parts2LCC-BY-NC-4.00
AVR/ArduinoCW308T 87C51
nikitalita
55.5 × 84.5 mm42 parts2LNo license0
AVR/ArduinoMainkiban2019ver.4
furukawa1020
139.7 × 139.7 mm40 parts2LNo license0
AVR/ArduinoFly High throughput - main board
open-neuroscience
106 × 97.5 mm39 parts2LGPL-3.00
AVR/ArduinoModuleV450
orgTestCodacy11KRepos110MB
30 × 61.4 mm39 parts2LCC-BY-NC-4.00
AVR/Arduino2024.03.15 AVR SCORE BOARD TX v2
jarwyg
111 × 109.8 mm38 parts2LMIT0
AVR/ArduinoHELEN RDP Environmental Board
pbbp0904
71.1 × 49.5 mm36 parts2LMIT0
AVR/ArduinoCarte Son Arduino-Mega
hwreverse
101.6 × 53.3 mm35 parts2LCC0-1.00
AVR/ArduinoFail schema dmp
ANToNyS21
242 × 160.3 mm35 parts2LNo license0
AVR/ArduinoDev board
a-s-adam
58.8 × 41.3 mm35 parts2LNo license0
AVR/ArduinoIncubator
Hackuarium
100 × 73.7 mm34 parts2LNo license0
AVR/ArduinoMaster Off V0.2
carloslcor
43 × 46 mm34 parts2LNo license0
AVR/ArduinoRover motor hat
dark-Phoenix2077
54 × 24 mm34 parts4LNo license0
AVR/ArduinoMod cell 0 02
62 × 42 mm33 parts2LCC-BY-SA-4.00
AVR/ArduinoMod cell 0 02
CHIBOY12
62 × 42 mm33 parts2LNo license0
AVR/ArduinoMotorDriver
aliaafee
56.3 × 43.5 mm33 parts2LNo license0
AVR/ArduinoATmega32u4 Development Board
CafeAsh
25.5 × 40.7 mm33 parts4LNo license0
AVR/ArduinoPower-Consumption-Meter-Version-B
andres-garcia-alves
88.9 × 95.3 mm32 parts2LGPL-3.00
AVR/ArduinoBocal HIDKey
Freimor
15.2 × 33.4 mm31 parts2LMIT0
AVR/ArduinoMega shield
rashikshrestha
121.9 × 83.8 mm31 parts2LNo license0
AVR/ArduinoIncuTester SMD
alazifi
122.4 × 73.4 mm31 parts2LNo license0
AVR/ArduinoMie1001 daq simple
Chaospossum
68.6 × 53.3 mm31 parts2LNo license0
AVR/ArduinoArduino UNO programmer (Panel)
INTI-CMNB
265 × 171.4 mm31 parts4LNo license0
AVR/ArduinoThermocouple meter
mahmoud-elghamry
150 × 70 mm30 parts2LNo license0
AVR/ArduinoAbcdefg
ktoniman
48.3 × 65.3 mm29 parts2LNo license0
AVR/ArduinoSchema electrique
LeaGuyon
42 × 55 mm29 parts2LNo license0
AVR/ArduinoMacroPad1.0
qutino
90.5 × 46 mm28 parts2LMIT0
AVR/ArduinoPowerpack shield
railroad-editor
99.1 × 53.3 mm28 parts2LNo license0
AVR/ArduinoCosmonode ext06
exostic
30.5 × 34.3 mm28 parts2LNo license0
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