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/ArduinoS1nT
usini
127 × 49.5 mm20 parts2LMIT5
AVR/ArduinoQuackfire controller
evyd13
55.5 × 33 mm18 parts2LCC-BY-SA-4.05
AVR/ArduinoTriOmniwheel-Formation-Control
warrenbocphet
87 × 101.6 mm14 parts2LNo license5
AVR/ArduinoCbs badge
cbs-ntcore
38.1 × 38.1 mm12 parts2LNo license5
AVR/ArduinoOccitel mini
silicium-org
93.3 × 69.7 mm11 parts2LMIT5
AVR/ArduinoSyzygy breakout standard
butterstick-fpga
45 × 70 mm10 parts4LNo license5
AVR/ArduinoStecchino
pepelepoisson
97.2 × 31.8 mm9 parts2LMIT5
AVR/ArduinoSplit-65
samlli
325 × 125 mm213 parts2LGPL-3.04
AVR/ArduinoPaddle65-canoe
302.5 × 109.5 mm182 parts2LCC-BY-SA-4.04
AVR/ArduinoPhnx
sini6a
286.3 × 133.4 mm178 parts4LNo license4
AVR/ArduinoSpritzgeback
jeremygam
300.7 × 87.6 mm174 parts2LCC-BY-SA-4.04
AVR/ArduinoSunsetterR2 Hotswap
PiKeeb
345.7 × 98.9 mm174 parts2LCC-BY-SA-4.04
AVR/ArduinoPlain60-b
284.7 × 94.2 mm173 parts2LCC-BY-SA-4.04
AVR/ArduinoAT90S2323/AT90S2343 demo board
atoomnetmarc
99.1 × 99.1 mm167 parts2LApache-2.04
AVR/ArduinoR68
rpedde
304.8 × 95.3 mm157 parts2LGPL-2.04
AVR/ArduinoEinsteinCE
Board-Folk
170 × 170.1 mm153 parts2LNo license4
AVR/ArduinoTCPU8-Alpha
halfburnttoast
150 × 150 mm138 partsGPL-2.04
AVR/ArduinoSEGMENT-60
slonket
285.8 × 133.4 mm119 parts2LMIT4
AVR/ArduinoAvr ledprojection
cnlohr
50 × 50 mm111 parts2LMIT4
AVR/Arduino2nd mainboard
Fiberprinter
99 × 99 mm110 parts2LNo license4
AVR/ArduinoOctogone Sans Regle
juthomas
130.4 × 124 mm106 parts2LNo license4
AVR/ArduinoKOSMO LATTICE
sebastianbeyer
100 × 200 mm105 parts2LNo license4
AVR/ArduinoSL40
worldspawn00
266.7 × 76.2 mm98 parts2LMIT4
AVR/ArduinoHourglass reva
geschmit
34 × 45.9 mm93 parts4LApache-2.04
AVR/ArduinoRTB C02
git4dcc
75.7 × 36.8 mm81 parts4LApache-2.04
AVR/ArduinoTeletext decoder
avrovulcanxh607
119.4 × 116.8 mm74 parts2LNo license4
AVR/ArduinoLed wordclock
Virtex7
80 × 50.8 mm74 partsNo license4
AVR/ArduinoMacroKeyboard
joshajohnson
89 × 100 mm73 parts2LNo license4
AVR/ArduinoTouchless xm
eldstal
57.5 × 61 mm71 parts2LNo license4
AVR/ArduinoAVRForth
oco2000
203.2 × 135.9 mm69 parts2LGPL-3.04
AVR/ArduinoTenkey plusplus
jonbobcar
77.5 × 118.1 mm68 parts2LNo license4
AVR/ArduinoUltimate temperature controller
Technariumas
80 × 100 mm68 parts2LApache-2.04
AVR/ArduinoPiSupply
enwi
65 × 56.5 mm67 parts2LLGPL-3.04
AVR/ArduinoTwostep hardware
macpod
80 × 55 mm67 parts2LNo license4
AVR/ArduinoMySensors 8Dimmers
LudovicLemarinel
100 × 100 mm66 parts2LNo license4
AVR/ArduinoAfterglow gi nano ps
bitfieldlabs
84 × 134.5 mm65 parts2LLGPL-3.04
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