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/ArduinoP30
arij
223.5 × 54 mm85 parts2LCC-BY-SA-4.03
AVR/ArduinoCorrected ENGR357 Project v1.1
pricna
100 × 100 mm80 parts2LMPL-2.03
AVR/ArduinoPtFlex
custom-ds
50.1 × 88.2 mm76 parts2LGPL-3.03
AVR/ArduinoBrushless ESC
FordPrfkt
63 × 36 mm75 parts2LGPL-2.03
AVR/ArduinoMicArray
dylanzodrow
183.4 × 183.4 mm74 parts2LNo license3
AVR/ArduinoFlight-Controller
MarkSherstan
50 × 50 mm74 parts2LMIT3
AVR/ArduinoLcd monitor
lcdporto
75.4 × 39.5 mm74 parts2LNo license3
AVR/ArduinoPalac
isavcic
139.6 × 113.5 mm71 parts2LMIT3
AVR/ArduinoPodregilo mainboard
johannes-mueller
139.7 × 83.8 mm70 parts2LGPL-2.03
AVR/ArduinoInterface board
uvmaero
157.5 × 109.2 mm70 parts2LCC-BY-SA-4.03
AVR/ArduinoDiySolderingStation
kr4fty
50.8 × 99.1 mm69 parts2LGPL-2.03
AVR/ArduinoFuser
emard
71.8 × 99.7 mm67 partsNo license3
AVR/ArduinoKeyboard
qwelyt
147.3 × 108 mm66 parts2LGPL-3.03
AVR/ArduinoAtmega32u4 hub pcb 1 2
Accessible-AAC
71.9 × 58.4 mm65 parts2LNo license3
AVR/ArduinoRPM-counter
midasgossye
68.9 × 23 mm62 parts2LNo license3
AVR/ArduinoInuino
aiex718
68.6 × 53.3 mm58 parts2LLGPL-2.13
AVR/ArduinoPorsche quad gauge
Evancli
98 × 98 mm57 partsCC-BY-SA-4.03
AVR/ArduinoScooterBMS
frankie-eight-days
48.3 × 66 mm54 parts2LNo license3
AVR/ArduinoVut arcar
wykys
60 × 36 mm53 parts2LMIT3
AVR/ArduinoNoko 2
NikolaiRadke
110 × 80 mm50 parts2LApache-2.03
AVR/ArduinoTR v0.1
razvysme
23.6 × 107 mm50 parts2LCC0-1.03
AVR/ArduinoMini-BT-Pcb-328P
d-diot
55 × 35 mm48 parts2LNo license3
AVR/ArduinoPetpuller
Kaminariss
99.7 × 99.7 mm48 parts2LNo license3
AVR/ArduinoNoahESC
zosko
32 × 43.7 mm48 parts2LNo license3
AVR/ArduinoKitchen timer
timer-chefs
60 × 110.8 mm48 parts2LNo license3
AVR/ArduinoMutanMonkey Mixtape3000
8BitMixtape
99 × 64.8 mm46 parts2LGPL-3.03
AVR/ArduinoPcb smd
rapidalarm
53.3 × 47 mm46 parts2LNo license3
AVR/ArduinoLouwii pad
LouWii
88 × 106 mm46 parts2LNo license3
AVR/ArduinoShield-A
rsedak
68.8 × 53.6 mm42 parts2LCustom license3
AVR/ArduinoOpamp vu meter
CASE-Association
92.5 × 99.7 mm42 parts2LGPL-3.03
AVR/ArduinoECG-Simulator
JohanSmets
67.3 × 48.3 mm41 parts2LGPL-3.03
AVR/ArduinoHDMI2USB-TOFE-LowSpeedIO
timvideos
108 × 111.3 mm41 parts2LCC-BY-SA-4.03
AVR/ArduinoMAPusart - USB to USART Bridge using CP2012
MakersAsylumIndia
70 × 30 mm40 parts2LNo license3
AVR/ArduinoMotor-Controller
camhan22
86 × 60 mm40 parts2LGPL-3.03
AVR/ArduinoUSB VSense
Meticulous-Technologies
18.3 × 47.5 mm39 parts4LCERN-OHL-S-2.03
AVR/ArduinoEuroClockMD TwoBoards
fablabnk
30 × 128.5 mm37 parts2LNo license3
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