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/Arduino60percent with numpad
caileighf
590 × 315.2 mm196 parts2LMIT0
AVR/ArduinoKeyboard
IntelektualProjects
359.6 × 136.4 mm194 parts2LMIT0
AVR/ArduinoRTM Template
kit-ipe
94 × 322.3 mm193 parts4LCERN-OHL-P-2.00
AVR/ArduinoAMS SLAVE TEST
HKUST-Red-Bird-Racing-EVRT
68 × 110 mm191 parts2LNo license0
AVR/ArduinoMacropad from scratch
paulmtn
304.8 × 119.9 mm190 parts2LNo license0
AVR/ArduinoDetach75-keyboard
seakrueger
319.9 × 131 mm188 parts2LApache-2.00
AVR/ArduinoQueue-Local-Display-ATmega328PB
ByNS-KARACA
340 × 100 mm188 parts2LNo license0
AVR/ArduinoKiCad m0116 revision
binhqp
372.1 × 113.8 mm186 parts4LNo license0
AVR/ArduinoOrtho Allison
kajahtaa
319.7 × 129.2 mm186 parts2LNo license0
AVR/ArduinoLilac-V1
coolerzanu
299.9 × 123.9 mm182 parts2LNo license0
AVR/ArduinoKB79
jonathan512
308 × 153 mm181 parts2LGPL-3.00
AVR/ArduinoPlain60-alps edition
keebmeup
284.7 × 94.2 mm181 parts2LCC-BY-SA-4.00
AVR/ArduinoSg75
carrizo93
314.3 × 123.8 mm181 parts2LMIT0
AVR/ArduinoPlain60-alps flex edition
evyd13
284.7 × 94.2 mm180 parts2LCC-BY-SA-4.00
AVR/ArduinoRPi-Minikeyboard
AbleArcher88
88.9 × 86.4 mm179 parts2LNo license0
AVR/ArduinoCcboard
troisiemetype
135 × 124 mm177 parts2LNo license0
AVR/ArduinoSNUC
omonomo
339 × 101 mm176 parts2LMIT0
AVR/ArduinoUniversalTKL
ojas-mediratta
344 × 124 mm175 parts2LNo license0
AVR/ArduinoKBD
magwas
283.7 × 110 mm173 parts2LNo license0
AVR/ArduinoDuckBoard75
MrDuck354
363.1 × 134.5 mm170 parts2LNo license0
AVR/ArduinoGate sequencer
gridbugs
166.3 × 174.9 mm169 parts2LMIT0
AVR/ArduinoChase badge
krk
52 × 52 mm169 parts2LNo license0
AVR/ArduinoCampervan management V2.1
akladnig
169.5 × 96 mm168 parts4LNo license0
AVR/ArduinoRaise left
Dygmalab
133.4 × 96 mm166 parts2LCERN-OHL-1.20
AVR/ArduinoKeyboard2
agkaminski
313.1 × 103.5 mm162 parts2LBSD-3-Clause0
AVR/ArduinoHAT CM4 183
ConnectBox
105.6 × 86.1 mm161 parts6LNo license0
AVR/ArduinoKeybored65
EriicLii
316.7 × 133.4 mm161 parts2LNo license0
AVR/ArduinoMAGIC Game - Catch the Gamma!
mppmu
208.3 × 129.5 mm159 parts4LGPL-3.00
AVR/ArduinoIEEE-Sign
kpzip
330 × 130 mm159 parts2LGPL-3.00
AVR/ArduinoLunar Writer
IlyaBOT
150 × 105 mm158 parts2LNo license0
AVR/ArduinoShinogi60-pro
PShivers
285 × 94.6 mm158 parts2LMIT0
AVR/Arduino65 percent keyboard
wemsh05
335.5 × 146 mm157 parts2LNo license0
AVR/ArduinoKiCAD Keyboard65Percent
AndrewMinWu
304.8 × 102.9 mm157 parts2LNo license0
AVR/ArduinoNotePad
Meteopresscz
151 × 212 mm155 parts2LNo license0
AVR/ArduinoKicad-Keyboard
archerlepke
304.8 × 100 mm155 parts2LNo license0
AVR/ArduinoBakeneko-60
MeltedIceCubes
284.7 × 94.2 mm154 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