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/ArduinoOven pcb V1
remus4444
105 × 65 mm3 parts2LNo license0
AVR/ArduinoV4
stuartpittaway
30 × 50 mm38 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoREVIUNG34-SPLIT-LEFT
gtips
100 × 100 mm39 parts2LMIT516
AVR/Arduino0.4
speeduino
100 × 100 mm127 parts2LNo license281
AVR/ArduinoHAGIWO Sync LFO Main
mzuelch
29.2 × 101.6 mm50 parts2LMIT165
AVR/Arduino1002 EPROM EMU NG
Kris-Sekula
99.1 × 88.9 mm36 parts2LApache-2.0161
AVR/ArduinoMS v4 ETL LED Driver
Aharoni-Lab
6 × 10.5 mm20 parts6LGPL-3.0157
AVR/ArduinoSampler
ijnekenamay
29 × 99.5 mm31 parts2LNo license142
AVR/ArduinoBiodata
QuinnFreedman
28 × 100 mm53 parts2LNo license114
AVR/ArduinoNO2C.EVO
turboedge
99.4 × 53.7 mm73 parts2LGPL-2.0107
AVR/ArduinoArduino Leonardo
sabogalc
68.6 × 53.3 mm50 parts2LWTFPL93
AVR/ArduinoUBBB 32u4
thebiguno
20.3 × 41.9 mm34 parts2LNo license75
AVR/ArduinoMalenki nano plus
MarkR42
19 × 24.1 mm28 parts2LGPL-3.072
AVR/ArduinoUsb joystick
rjwalters
80 × 60 mm38 parts4LMIT63
AVR/ArduinoGrooveboard choc atmel au
ianklug
118.1 × 22.9 mm24 parts2LCC-BY-SA-4.058
AVR/ArduinoInterrupter
profdc9
79.3 × 97 mm80 parts2LNo license56
AVR/ArduinoNfc sense
unsurv
18.6 × 43.2 mm16 parts4LNo license49
AVR/ArduinoTouchuc
jonnor
13 × 13 mm16 parts2LNo license43
AVR/ArduinoUTILITY (NAVIGATION) MODULE
CodapopKSP
28 × 28 mm55 parts2LGPL-3.037
AVR/ArduinoBack prototype
libresmartphone
40 × 100 mm65 parts2LNo license33
AVR/ArduinoControllerToJamma
NEO-JAMMA
47.9 × 46.4 mm3 parts2LGPL-3.029
AVR/ArduinoArduino nanoPB
tomaskovacik
18.3 × 48.5 mm42 parts2LCustom license27
AVR/Arduino68k nano watchdog
demik
90.2 × 26 mm13 parts2LCERN-OHL-P-2.027
AVR/ArduinoMxtoggle
sjgray
29 × 21.8 mm12 parts2LNo license27
AVR/ArduinoUART programmer
T3nk4I
18 × 20 mm12 parts2LGPL-2.027
AVR/ArduinoSNES2TOWNS
captainys
67 × 50.8 mm16 parts2LNo license26
AVR/ArduinoHB-Mower-Fence
stan23
69.9 × 46.2 mm30 parts2LCC-BY-NC-4.021
AVR/ArduinoBurgerDisk-SMD
colinleroy
65.1 × 97 mm18 parts2LMIT20
AVR/Arduino96 well adapter board for Arduino mega
pierrebaillargeon
121.5 × 83 mm15 parts2LGPL-3.017
AVR/ArduinoMock inverter
olin-electric-motorsports
150.8 × 88 mm65 parts2LNo license14
AVR/ArduinoPre cpl coordinate fix v1
mehrantsi
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoPhotoSensors
ParadigmHyperloop
95 × 95 mm94 parts2LCustom license11
AVR/ArduinoCPC464-2MINIPS2
Board-Folk
24.7 × 67.6 mm17 parts2LNo license10
AVR/ArduinoSlippi
RoboJackets
78.7 × 34.9 mm42 parts2LMIT9
AVR/ArduinoPmd keyface
z00m128
54.7 × 43.7 mm24 parts2LCC-BY-NC-4.09
AVR/ArduinoAlarmsystem
wlatif-cmyk
94.6 × 64 mm7 parts2LNo license8
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