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/ArduinoNAVIGATION (TIME) MODULE
CodapopKSP
25 × 32 mm41 parts2LGPL-3.037
AVR/ArduinoDominoDisk-THT
colinleroy
45.7 × 38.9 mm14 parts2LMIT20
AVR/ArduinoQuantizer
telec16
25 × 200 mm38 parts2LNo license16
AVR/ArduinoPyro000
microresearch
50 × 106 mm53 parts2LNo license15
AVR/ArduinoDG Nova Front Panel Tester
ForgottenMachines
114 × 99 mm9 parts2LNo license5
AVR/ArduinoSchematic
Haxerflaxer
109.2 × 106.7 mm23 parts2LGPL-3.04
AVR/ArduinoMySensors SensitiveTouch
LudovicLemarinel
43 × 45 mm14 parts2LNo license4
AVR/ArduinoPypilot remote rf
pypilot
25.8 × 60.4 mm34 parts2LNo license3
AVR/ArduinoPantoGraph
bask185
13 × 40 mm30 parts4LNo license3
AVR/ArduinoTSAL-driver
uvmaero
21.6 × 56.5 mm11 parts2LCC-BY-SA-4.03
AVR/ArduinoTx04-pdfix
McbeEringi
91.1 × 88.9 mm17 parts2LMIT2
AVR/ArduinoGeneric node
lucanastasio
48.9 × 17.8 mm47 parts4LNo license1
AVR/ArduinoBike speed sensor
reivax-boucoi
42.5 × 53.5 mm36 parts2LNo license1
AVR/Arduino40Vservo
SJSURoboticsTeam
20 × 20 mm21 parts4LNo license1
AVR/ArduinoPlaca main ESPtestsocket
NicolasSchkurko
86.1 × 88.2 mm17 parts2LNo license1
AVR/ArduinoSp02 monitor
hammadurrehman2006
78 × 52 mm10 parts4LNo license1
AVR/ArduinoRobust io.before drc cleanup
lusher00
159.1 × 101.4 mm254 parts4LCustom license0
AVR/ArduinoPneumatic ctrl.1.1
adarwoo
46 × 86 mm40 parts2LNo license0
AVR/ArduinoDisplay adapter
adeboni
100 × 100 mm34 parts2LGPL-3.00
AVR/ArduinoRoaster
eblade
87.4 × 66.8 mm26 parts2LNo license0
AVR/ArduinoDccModule
danielvilas
85 × 50 mm26 parts2LMIT0
AVR/ArduinoPCB shield
AbdELRahmanGamiel
74.8 × 60.1 mm23 parts2LNo license0
AVR/ArduinoCurrent sense
MadsRudolph
104 × 104 mm17 parts2LNo license0
AVR/ArduinoMcu gesture control board
NB6RULES
35.5 × 30.5 mm12 parts2LNo license0
AVR/ArduinoDetecteurCarreFouille
ARIG-Robotique
36.3 × 58 mm11 parts2LNo license0
AVR/ArduinoEncoders i2c
jvegaf
80 × 52.5 mm8 parts2LNo license0
AVR/ArduinoArduino Nano Radio Receiver
Krzysiek-Mistrz
38 × 63.3 mm7 parts2LNo license0
AVR/ArduinoControl Panel Mega Shield bak
Enthusela
104.1 × 55.9 mm6 parts2LNo license0
AVR/ArduinoRC6502 Serial IO
tebl
99.1 × 66 mm21 parts2LGPL-3.0192
AVR/ArduinoSYZYGY SGMII
gregdavill
50 × 80 mm31 parts4LNo license178
AVR/ArduinoRNG Back
QuinnFreedman
50 × 100 mm34 parts2LNo license114
AVR/ArduinoMcc
bread-modular
30.5 × 68.6 mm22 parts2LMIT65
AVR/ArduinoATtiny85 Charlieplex LED Grid
rjwalters
50 × 55 mm19 parts2LMIT63
AVR/ArduinoGreaseweazle F1 Gotek Rev 2
solarmon
111.6 × 94.4 mm34 parts2LNo license21
AVR/ArduinoImu
olin-electric-motorsports
45 × 45 mm48 parts2LNo license14
AVR/ArduinoCONTROLLER Standby Instrument
Exprezz0
99.1 × 71.1 mm14 parts2LCC-BY-NC-4.014
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