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/ArduinoSoft starter
Susensio
73 × 50 mm24 parts6LNo license0
AVR/ArduinoATmega328P-Minimal-Development-Board
moaazzz-h
82.9 × 62.9 mm24 parts2LMIT0
AVR/ArduinoMimikyu
0101shift
84.8 × 96.6 mm24 parts2LNo license0
AVR/ArduinoArduino music box
hschwar2
103.5 × 87 mm24 parts2LNo license0
AVR/ArduinoML Sensor
ilkerya
101.6 × 53.4 mm23 parts2LNo license0
AVR/ArduinoDC LOAD V01
jmos1
134.1 × 95.3 mm23 parts2LNo license0
AVR/ArduinoKicad usbc iso avr328
jhugon
73.3 × 45 mm23 parts2LNo license0
AVR/ArduinoJeelink clone
poempelfox
19.5 × 50.2 mm23 parts2LNo license0
AVR/ArduinoSD ProtoBoard
raniericarl
24.8 × 36.8 mm23 parts2LNo license0
AVR/ArduinoOpen wound
akornsys-rdi
45.1 × 26 mm23 parts2LGPL-3.00
AVR/ArduinoSoldering-Sponge-Automatic-Water-Dispenser
EECSB
50 × 50 mm23 parts2LUnlicense0
AVR/ArduinoSPECTRODRIVE
omersoner-dev
153.5 × 161.3 mm23 parts2LNo license0
AVR/ArduinoPartyTorch
cobieke-1
20 × 20 mm23 parts2LNo license0
AVR/ArduinoArduino nano every pcb replica
arhamrizwan2006
60 × 51.5 mm23 parts2LNo license0
AVR/ArduinoLora gateway
OpenAlerting
78.3 × 25.8 mm23 parts2LCC-BY-NC-4.00
AVR/ArduinoVault-Security-System
bill-chamal
104 × 54 mm23 parts2LMIT0
AVR/ArduinoATTinyX14-development board
jenschr
39.4 × 16.2 mm23 parts2LMIT0
AVR/Arduino7seg16bit
hotkeysoft
62.9 × 22.9 mm22 parts2LMIT0
AVR/ArduinoATMega8 Minimum System
mekatronik-achmadi
28.9 × 35.4 mm22 parts2LNo license0
AVR/ArduinoHalakekit first break
asukiaaa
2.8 × 2.8 mm22 parts2LNo license0
AVR/ArduinoKdg pingpong medal
VincentPeters
45 × 45 mm22 parts2LMIT0
AVR/ArduinoClone hero arduino
jaakkolilja
60 × 60 mm22 parts2LNo license0
AVR/ArduinoOLD-combat
mkhrenov
68.1 × 34.8 mm22 parts2LNo license0
AVR/ArduinoDigital protection amulet
55 × 20 mm22 parts2LCC-BY-SA-4.00
AVR/ArduinoTicTacToe
hotwolf
53.3 × 68.6 mm22 parts2LNo license0
AVR/ArduinoRC-Switch
dirk-sth
55.3 × 46 mm22 parts2LGPL-3.00
AVR/ArduinoPPURS-projekt
jadranm
81.5 × 57.3 mm22 parts2LNo license0
AVR/Arduino2021-2022 Viallaneix Sottas Noual
MOSH-Insa-Toulouse
76.2 × 61 mm22 parts2LNo license0
AVR/ArduinoVFD Clock LD8035
airpocket-soundman
90 × 65 mm22 parts2LNo license0
AVR/ArduinoCopv2
swagprincess
30 × 42 mm22 parts2LGPL-3.00
AVR/ArduinoLEDTester
BurningElectronics
85 × 85 mm22 parts2LMIT0
AVR/ArduinoSlice STEP
feastorg
70 × 100 mm22 parts2LGPL-3.00
AVR/ArduinoAtmega1281-Development-Board
DrItanium
69.8 × 84.3 mm22 parts2LCC-BY-SA-4.00
AVR/Arduino2021-22 CapteurGraphite HOTTON LAMY
68.6 × 57 mm22 parts2LNo license0
AVR/ArduinoSAM-ROBOT-CONTROLLER
dvmbnks
95.8 × 90.7 mm22 parts2LNo license0
AVR/ArduinoAustroduino tutorial
mayermakes
68.6 × 53.3 mm21 parts4LGPL-3.00
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