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/ArduinoIEEE-Macropad
giannawong
98.4 × 76.2 mm48 parts2LNo license0
AVR/ArduinoHome automation
acshi
72.4 × 58.9 mm48 parts2LNo license0
AVR/ArduinoHvac
candykingdom
76.5 × 99 mm48 parts2LNo license0
AVR/ArduinoMinesweeper
Shawky-MAHa
116.3 × 144.3 mm48 parts2LNo license0
AVR/ArduinoVlt
0x007E
44.9 × 18.3 mm48 parts2LCC-BY-NC-4.00
AVR/Arduino5S-Blower-Controller
10htts
77 × 62 mm48 parts2LCERN-OHL-S-2.00
AVR/ArduinoRemote unit
danielmcmillan
94 × 56.3 mm47 parts2LMIT0
AVR/ArduinoTraffic lights
ilusder
26.4 × 61.6 mm47 parts2LNo license0
AVR/ArduinoAutoEraser
Ruchi12377
140.3 × 89.7 mm47 parts2LNo license0
AVR/ArduinoLeviosa
Kay-Jack
80 × 80 mm47 parts2LNo license0
AVR/ArduinoH-bridge
Mohamed-U3
97 × 50 mm47 parts2LMIT0
AVR/ArduinoMicro mp
c04022004
100 × 40 mm47 parts2LNo license0
AVR/ArduinoCosmonode
exostic
59.7 × 36.2 mm47 parts2LNo license0
AVR/ArduinoMacro pad
eric-wood
79.6 × 61.1 mm47 parts2LNo license0
AVR/ArduinoBus bridge encoders sonar
makerbus
100 × 50 mm47 parts2LNo license0
AVR/ArduinoAvr mod player
bazsimarkus
100 × 60 mm46 parts2LNo license0
AVR/ArduinoArduino-Uno
MohamedHassanExp
59.9 × 66.5 mm46 parts4LMIT0
AVR/ArduinoPWM-GripHeat
atomspring
54.5 × 29.5 mm46 parts2LGPL-3.00
AVR/Arduino4-in-1-LED-Matrix-Board
shubham7547
111.8 × 116.8 mm46 parts2LNo license0
AVR/ArduinoPCB-Keyboard and-Mouse
Chloe-Can-Code
127 × 91.4 mm46 parts2LNo license0
AVR/ArduinoFan controller
ferrybig
60 × 60 mm46 parts2LNo license0
AVR/ArduinoSlice IOCT
feastorg
70 × 100 mm46 parts2LGPL-3.00
AVR/ArduinoTinkercode extension generator
apauaie
104.1 × 155.6 mm46 parts2LGPL-3.00
AVR/ArduinoMonodiffuse
elixpo
35.8 × 34 mm46 parts2LMIT0
AVR/Arduino4-in-1-LED-Matrix-Board main
ansh7458
111.8 × 116.8 mm46 parts2LNo license0
AVR/Arduino6KeyMacroPad
04jj
57.2 × 57.2 mm45 parts2LNo license0
AVR/ArduinoArdubell
dh2pp
60 × 60 mm45 parts2LNo license0
AVR/ArduinoArduinoX
praveen0515
68.6 × 53.3 mm45 parts2LMIT0
AVR/ArduinoArduino-Haptic-Driver-Shield
id-studiolab
68.7 × 53.6 mm45 parts2LNo license0
AVR/ArduinoCO2-PCB-Monitor
morzack
82.5 × 35 mm45 parts4LMIT0
AVR/ArduinoSimple incubator
Hackuarium
100 × 73.7 mm45 parts2LNo license0
AVR/ArduinoATmega1284EthernetController
46nori
100 × 80 mm45 parts4LNo license0
AVR/ArduinoMaster
cactorium
47.4 × 32.6 mm45 parts2LMIT0
AVR/ArduinoKicad vibrotactile BCI shield
Fasol0
99.1 × 53.3 mm45 parts2LNo license0
AVR/ArduinoProxiwave-D
ampnics
50 × 100 mm44 parts2LNo license0
AVR/ArduinoTwentypad
HarryCutts
79 × 122.4 mm44 parts2LNo license0
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