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/ArduinoBrushless-Motor-Biz-Card
ageppert
88.9 × 50.8 mm70 parts2LMIT37
AVR/ArduinoEntropy32-Plus
captainchapster
53 × 63 mm34 parts2LMIT37
AVR/ArduinoKicad-7-Series
pcbcupid
60 × 60 mm9 parts2LMIT37
AVR/ArduinoC64-XUM1541
tebl
64.1 × 39.4 mm6 parts2LNo license37
AVR/ArduinoCampus keyboard
flurples
307 × 85 mm242 parts2LGPL-3.036
AVR/ArduinoArisu
doughnut923
339.1 × 118.7 mm183 parts2LMIT36
AVR/ArduinoStubby
thebiguno
49.5 × 49.5 mm62 parts2LNo license36
AVR/Arduino4chord midi
sgreg
74.8 × 84.7 mm60 parts2LNo license36
AVR/ArduinoRailroad keyboard
nopunin10did
462 × 116.9 mm219 parts2LCC-BY-SA-4.035
AVR/ArduinoAlamode
wyolum
85.1 × 55.9 mm75 partsNo license35
AVR/ArduinoThundervolt hw1
mackieks
46.9 × 54.8 mm46 parts4LNo license35
AVR/ArduinoKeycool84keyboard
overlordpro-sys
337.4 × 120.5 mm169 parts2LMIT34
AVR/ArduinoMiSTer-G3
wickerwaka
130 × 91.5 mm31 parts2LLGPL-3.034
AVR/ArduinoMora blinker
kissadamfkut
33 × 30 mm15 parts2LMIT34
AVR/ArduinoModularLabPSU
tom-biskupic
128 × 80 mm140 parts2LNo license33
AVR/ArduinoVault35 ortho
galvy0
209.7 × 76.4 mm131 parts2LUnlicense33
AVR/ArduinoGpstracker
blemasle
79.3 × 59.2 mm65 parts2LMIT33
AVR/ArduinoIBus BT digital module
the-vty
60 × 40 mm56 parts2LLGPL-3.033
AVR/ArduinoSplit pcb throughole
climbalima
106.7 × 72.4 mm50 parts2LNo license33
AVR/ArduinoWired sculpt
chadaustin
40 × 50 mm35 parts2LTAPR-OHL-1.033
AVR/ArduinoCrealitySpacePiAutomation
Ermakov
39.9 × 46.4 mm19 parts2LNo license33
AVR/ArduinoEnclave
keyquesttech
250 × 95 mm296 parts2LNo license32
AVR/ArduinoTentacle
whitebox-labs
146.1 × 53.3 mm63 parts2LNo license32
AVR/ArduinoNes cnrom
emeargt
99.7 × 63.9 mm10 parts2LCC-BY-SA-4.032
AVR/ArduinoPolykit Kosmo Multitool
polykit
60 × 150 mm90 parts2LCC-BY-NC-4.031
AVR/Arduino6502-Computer
The-Invent0r
188.3 × 114.3 mm34 parts2LNo license31
AVR/ArduinoMain board
cester-ino
95 × 43 mm24 parts2LGPL-3.031
AVR/ArduinoCozScan2020
cozdas
201.9 × 68.6 mm77 parts2LBSD-3-Clause30
AVR/ArduinoMidi2cv
tomarus
81.3 × 96.5 mm63 parts2LNo license30
AVR/ArduinoMisc
slgrobotics
99.1 × 99.1 mm55 parts2LNo license30
AVR/ArduinoJeep canbus
latonita
67.3 × 54 mm48 parts2LMIT30
AVR/ArduinoHardmpu wt
PickledDog
106.1 × 95.4 mm46 parts2LApache-2.030
AVR/ArduinoCard-Sized-Midi-Controller
sensai7
85.7 × 54 mm35 parts2LGPL-3.030
AVR/ArduinoAvr hv2
dilshan
101.6 × 53.3 mm15 parts2LMIT30
AVR/ArduinoGrBLDC
Defdist
103.1 × 59.6 mm204 parts2LNo license29
AVR/Arduino67mk E
str-dst
303.2 × 97.6 mm134 parts2LCC-BY-NC-4.029
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