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/ArduinoPwrModule
CIDCO-dev
25.9 × 62.3 mm21 parts4LMIT11
AVR/ArduinoECP5U85-BSE-USB Test Board
open-ephys
150 × 150 mm91 parts4LCustom license10
AVR/ArduinoMupi
m47812
50 × 130 mm80 parts2LGPL-3.010
AVR/ArduinoModel-M-USB-v4
mschwingen
150 × 37 mm58 parts2LNo license10
AVR/ArduinoPower control
portlandrobotics
20.3 × 28.6 mm23 parts2LSHL-2.110
AVR/ArduinoCamera stabilization hardware
rmingon
36 × 32 mm18 parts2LNo license10
AVR/ArduinoOpensyringepump indus
PySpice-org
149.2 × 108 mm152 parts4LNo license9
AVR/ArduinoSynth Labs 060 Soldered
0xCB-dev
285 × 95 mm128 parts2LCustom license9
AVR/ArduinoDs90c124-deserializer
gregdavill
45 × 35 mm53 parts4LNo license9
AVR/ArduinoQ10MF BOARD
brijohn
281 × 79 mm44 parts2LNo license9
AVR/ArduinoNixie clock
shengwen-tw
102.7 × 51.6 mm44 parts2LMIT9
AVR/ArduinoOCXO Clock N
Gavin-Watkins
165.1 × 114.3 mm43 parts2LNo license9
AVR/ArduinoRHS 3 Simple
pa-pa
21 × 99.5 mm35 parts2LNo license9
AVR/ArduinoRC Light System
tebl
36.2 × 41.3 mm25 parts2LCERN-OHL-1.29
AVR/ArduinoOpenHardwareExG Shield Test Board
OpenElectronicsLab
147.3 × 81.3 mm124 parts4LCERN-OHL-1.28
AVR/ArduinoGeoFence Panel
sparkfunX
30.5 × 66 mm60 partsNo license8
AVR/ArduinoDirect drive-LEDs
RepRapLtd
101.6 × 53.3 mm43 parts2LGPL-3.08
AVR/ArduinoSplit mini left
tamago324
94.8 × 81.9 mm37 parts2LNo license8
AVR/ArduinoFordacp LCD
tomaskovacik
81.9 × 42.4 mm35 parts2LNo license8
AVR/ArduinoBoard attiny48 88
SamantazFox
20.1 × 20 mm15 parts2LBSD-3-Clause8
AVR/ArduinoBeetje 32U4 Blok
aspro648
68.6 × 53.3 mm6 parts2LNo license8
AVR/ArduinoOutAna
radioelf
67.6 × 63.8 mm86 parts2LNo license7
AVR/ArduinoDuino Coin
elVucko
50 × 50 mm83 parts4LMIT7
AVR/ArduinoSDRBackup2
KonradMcClure
100 × 100 mm76 parts2LNo license7
AVR/ArduinoStepper board
felixzero
58.4 × 41.7 mm74 parts2LGPL-3.07
AVR/ArduinoControlBoard rev05a
plertvilai
44.5 × 57.8 mm64 parts2LMIT7
AVR/ArduinoLE-BOX-0028
fallberg
76 × 96 mm60 parts2LCERN-OHL-1.27
AVR/ArduinoProtoino01 adv
hwreverse
75 × 66 mm52 parts2LBSD-3-Clause7
AVR/ArduinoMódulo RS485 a CAN para EP-SOLAR
AugustoS97
80 × 55.6 mm42 parts2LGPL-3.07
AVR/ArduinoPower cct
AronAyub
108.6 × 145 mm75 parts2LNo license6
AVR/ArduinoController
yamamotsu
50 × 23 mm35 parts2LNo license6
AVR/ArduinoPhoenix
wFairmanOlin
65 × 22.6 mm35 parts2LNo license6
AVR/ArduinoKeyvilboard2.0
RedBulletTooling
37 × 17.6 mm33 parts2LApache-2.06
AVR/ArduinoSmart penetrometer.kicad pro
ARTS-Laboratory
29 × 93.3 mm32 parts4LCC-BY-SA-4.06
AVR/ArduinoLoRa board
Open-Things-Network
32 × 96.8 mm27 parts2LMIT6
AVR/ArduinoHandystick
kjoller
19.1 × 45 mm24 parts2LCERN-OHL-1.26
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