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/ArduinoCopyOfMain
nolanconrad
75 × 70.5 mm34 parts2LNo license0
AVR/ArduinoParticle tiny1634-pluggable module with lead
ProgrammableMatter
37.5 × 47.6 mm33 parts2LNo license0
AVR/ArduinoPld test
gcoonrod
81.5 × 76.2 mm33 parts2LApache-2.00
AVR/ArduinoArduino nano low side dc driver
gkeiel
84.6 × 50.1 mm33 parts2LMIT0
AVR/ArduinoEnc panel
mar0x
68.6 × 89.5 mm30 parts2LNo license0
AVR/ArduinoProcessing
directionizer
64 × 64 mm28 parts2LGPL-3.00
AVR/ArduinoAccess control door servo
aaronds
52.6 × 22.1 mm26 parts2LNo license0
AVR/ArduinoRC2014-Leonardo-Micro-Interface
dennisperry
104 × 50 mm24 parts2LNo license0
AVR/ArduinoCosmonode ext02
exostic
48.3 × 31.8 mm23 parts2LNo license0
AVR/Arduino03013-001
marian-scientific
58 × 50 mm22 parts2LNo license0
AVR/ArduinoMcu singleside
Kenkneeshio
49.4 × 39.7 mm22 parts2LNo license0
AVR/ArduinoAttiny85 timer
1999AZZAR
50 × 50 mm21 parts2LMIT0
AVR/ArduinoBaumsatz
HaCraFu
88.9 × 98.7 mm21 parts2LCC-BY-NC-4.00
AVR/ArduinoSchematicShieldPLC V0.3
nxvxr14
118.5 × 80.9 mm19 parts2LNo license0
AVR/ArduinoArduino Servo Platine
Buschele06
40.4 × 52.8 mm18 parts2LNo license0
AVR/ArduinoFlasher
cactorium
43.4 × 28.8 mm17 parts2LMIT0
AVR/ArduinoBaBot Base THT 4067 Module 2Layer DRAFT
Hemlock-white
100 × 98.9 mm16 parts2LNo license0
AVR/ArduinoCodeKittyNanoBreakout
dmiracle
17.8 × 43.2 mm16 parts2LNo license0
AVR/ArduinoDC Halogen Flicker
mekatronik-achmadi
86.1 × 48.7 mm16 parts2LNo license0
AVR/ArduinoGirl scouts blinker
eshazen
76.2 × 88.9 mm13 parts2LNo license0
AVR/ArduinoEyescontrol
cdrfiuba
40.6 × 43.2 mm13 parts2LNo license0
AVR/ArduinoAttiny85 USB panel
lehaihv
110.1 × 83.3 mm12 parts2LNo license0
AVR/ArduinoCarteExtensionMidi
jvillemejane
59.1 × 74.3 mm11 parts2LNo license0
AVR/ArduinoMUBI-BOT NANO
lmtreser
49.8 × 50.8 mm10 parts2LNo license0
AVR/ArduinoFalconia-Beacon
PHS-SMCS
23 × 31 mm9 parts2LNo license0
AVR/ArduinoMoter switch
mit-pev
150 × 85 mm9 parts2LNo license0
AVR/ArduinoMicLed
Ashok-0167
88 × 88 mm8 parts2LNo license0
AVR/ArduinoMicLed
gokul-rm
88 × 88 mm8 parts2LNo license0
AVR/ArduinoData Collection Logging
ARTS-Laboratory
35.6 × 69.9 mm8 parts2LCC-BY-SA-4.00
AVR/ArduinoRotor test
lbligh
18 × 15 mm7 parts2LNo license0
AVR/ArduinoDisplay interface
saktheeswaranswan
96.5 × 55.3 mm7 parts2LMIT0
AVR/ArduinoPCB2 OrganNode
ahaimour2005
35 × 47 mm7 parts2LMIT0
AVR/ArduinoCircuit Stepper
EthanSousaProjects
67.1 × 58.4 mm4 parts2LGPL-3.00
AVR/ArduinoModuleV450
stuartpittaway
30 × 61.4 mm39 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoReviung39s
gtips
247.9 × 104.5 mm81 parts2LMIT516
AVR/ArduinoRGB LED 1.4
lachlanA
81.3 × 53.3 mm39 partsGPL-2.0429
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