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/ArduinoMacro pad
jonathanwpaul
108 × 122 mm58 parts2LNo license1
AVR/ArduinoLoopingLouino
RedlabsDE
50 × 30 mm58 parts2LNo license1
AVR/ArduinoOfen v2
Ulf-vom-Mond
109.2 × 63.5 mm58 parts2LNo license1
AVR/ArduinoOBC644-10D
kentN
45 × 45 mm57 parts2LMIT1
AVR/ArduinoHeli avionics
1-max-1
65.5 × 39 mm56 parts4LNo license1
AVR/ArduinoCalve heater
R-Mutura
43.8 × 25 mm56 parts2LNo license1
AVR/ArduinoLoFence Hardware
Alex9779
72 × 133 mm56 parts2LMIT1
AVR/ArduinoBobuino
llegoff
68.5 × 53.2 mm56 parts2LCERN-OHL-1.21
AVR/ArduinoPyroPen
DerpyDoggo11
43 × 10 mm55 parts2LNo license1
AVR/ArduinoSwitch Panel
Plasmarobo
118.1 × 80 mm55 parts2LCC-BY-NC-4.01
AVR/ArduinoRotator-Controller
jft-t
100 × 100 mm55 parts2LGPL-3.01
AVR/ArduinoModular development board
ElektroNeo
79 × 79 mm54 parts2LNo license1
AVR/ArduinoMOS6581
dandandrea
100 × 100 mm52 parts2LNo license1
AVR/ArduinoWolkenThermometer
KarlZeilhofer
36 × 51 mm52 parts2LCustom license1
AVR/ArduinoT12 SolderingStation
Cube-Line
80 × 23 mm52 parts2LNo license1
AVR/ArduinoLEDMetaMatrix
PanoramixDeDruide
160 × 160 mm52 parts2LUnlicense1
AVR/ArduinoPlacaMotores
Robot-Sumo
104.5 × 81.9 mm52 parts2LNo license1
AVR/ArduinoCarputer
Carputer-project
142.5 × 99.1 mm52 parts2LCERN-OHL-P-2.01
AVR/ArduinoMIDI-KEYBOARD
Rathur421
68.6 × 53.3 mm52 parts2LNo license1
AVR/ArduinoNugMacro-Keypad
Sir-keet
76.2 × 95.2 mm51 parts2LMIT1
AVR/ArduinoClmt
olegk0
31.8 × 27.4 mm51 parts2LApache-2.01
AVR/ArduinoBattery discharger
jkordek1
100 × 160 mm51 parts2LNo license1
AVR/ArduinoNLog 9DoF
45 × 45 mm51 parts2LMIT1
AVR/ArduinoMCU.ATMEGA328P-AU-Base
kgsully
60 × 63 mm51 parts2LNo license1
AVR/ArduinoMill music
jonronen
87.1 × 51.3 mm51 parts2LNo license1
AVR/ArduinoBusiness card
roepkefeller
85.6 × 54 mm50 parts2LNo license1
AVR/ArduinoArm interface board mirrored
Roboy
189.6 × 14.6 mm49 parts2LNo license1
AVR/ArduinoLiPo heater
PatrickBaus
32 × 32 mm49 parts2LNo license1
AVR/ArduinoDAC-for minimoog
gkaxowns9
132 × 100 mm49 parts2LNo license1
AVR/ArduinoEmbedded-Systems-Sorting-Machine
linjunway
113.4 × 110.6 mm49 parts2LNo license1
AVR/ArduinoPid smt oven retry
ntchris
71.1 × 49.3 mm48 parts2LGPL-3.01
AVR/ArduinoCapstoneControllerBoardFINAL
UAlberta-EcoCar
116.8 × 84.8 mm48 parts2LGPL-3.01
AVR/ArduinoTachometer
PotatoX
78.6 × 60.8 mm48 parts2LCC-BY-NC-4.01
AVR/ArduinoBinaryClock
TDHolmes
76.2 × 50.8 mm48 parts2LNo license1
AVR/ArduinoRedBoard Edge
sparkfun
101.6 × 38.1 mm48 parts2LMIT1
AVR/ArduinoCustom keyboard
MacroLens
96 × 39.8 mm47 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