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/ArduinoVideopaccart backup
bwack
62.2 × 84.5 mm21 parts2LNo license6
AVR/ArduinoAlphadisplays
74hc595
109.2 × 33.7 mm18 parts2LNo license6
AVR/ArduinoArduino Canbus Card
JohnSutley
94.7 × 53.7 mm6 parts2LNo license6
AVR/ArduinoSandy Base
jpskenn
285 × 95.1 mm153 parts2LMIT5
AVR/ArduinoMycleium pcb before thereminchange
microresearch
74.5 × 83.7 mm126 parts2LGPL-3.05
AVR/ArduinoOVHD Mainboard
stefanofinetti
137 × 89 mm123 parts2LGPL-3.05
AVR/ArduinoTravis num2024
dieseltravis
85.2 × 132.8 mm81 parts2LCustom license5
AVR/ArduinoOpenExoStim
MonzurulAlam
69 × 53.7 mm49 parts2LNo license5
AVR/ArduinoBMS Project
tjorvenhillmann
100 × 100 mm46 parts2LNo license5
AVR/ArduinoEasyPCB 10 nrf24l01pbackupremove
sundberg84
50 × 49.9 mm30 parts2LNo license5
AVR/ArduinoController
mdrobot7
153.8 × 101 mm19 parts2LGPL-3.05
AVR/ArduinoProgramador
andresR8
25.2 × 42 mm19 parts2LNo license5
AVR/ArduinoArduino Mega
LUMERIIX
101.6 × 53.3 mm13 parts2LNo license5
AVR/ArduinoSunsetterR2 Solder
PiKeeb
345.7 × 98.9 mm174 parts2LCC-BY-SA-4.04
AVR/ArduinoCHOCOBOard
jeremygam
303.8 × 94.3 mm102 parts2LCC-BY-SA-4.04
AVR/ArduinoAvr ledprojection-0402
cnlohr
25.4 × 34.5 mm91 parts2LMIT4
AVR/ArduinoMySensors 8FilPilotes
LudovicLemarinel
79 × 98 mm60 parts2LNo license4
AVR/ArduinoIgniter
AndrewHauck
124.9 × 69.6 mm54 parts2LNo license4
AVR/ArduinoPainel pcb2
ArqueologiaDigital
91.4 × 119.4 mm53 parts2LNo license4
AVR/ArduinoAfterglow gi nano
bitfieldlabs
69 × 118.5 mm52 parts2LLGPL-3.04
AVR/ArduinoMicrocontroller
AUV-IITK
65.4 × 46.4 mm47 parts2LNo license4
AVR/ArduinoV3
iley
100 × 100 mm45 parts2LMIT4
AVR/ArduinoPcb tile game tile panelized
bytesizedengineering
3.6 × 3.3 mm42 parts2LGPL-3.04
AVR/ArduinoAT90S8535 demo board
atoomnetmarc
99.1 × 99.1 mm41 parts2LApache-2.04
AVR/ArduinoArduinoNanoDev
joshajohnson
100 × 48 mm39 parts2LNo license4
AVR/ArduinoPostman
boanjo
92 × 110 mm31 parts2LNo license4
AVR/ArduinoNerf timer
Salted-Peanuts
75.9 × 93.5 mm30 parts4LMIT4
AVR/ArduinoLoraWAN Header Backwards
lostangles
111.9 × 34.6 mm29 parts2LNo license4
AVR/ArduinoProject Hanip
AhmadHaniF1145
102.1 × 53.9 mm25 parts2LNo license4
AVR/ArduinoBurstcart
ytmytm
56 × 91 mm21 parts2LNo license4
AVR/ArduinoGlyph isp
MalphasWats
41 × 16 mm17 parts2LNo license4
AVR/ArduinoEsc v6
savob
22.1 × 12 mm16 parts4LCERN-OHL-W-2.04
AVR/ArduinoTs14-arduino shield
tropicsquare
58 × 53 mm13 parts2LCERN-OHL-P-2.04
AVR/ArduinoDigital board
minisystem
200 × 150 mm237 parts2LNo license3
AVR/ArduinoSkeleton68 underglow
skeletonkbd
336.6 × 121.7 mm170 parts2LMIT3
AVR/ArduinoMidpower controller
pypilot
103.4 × 71.6 mm142 parts4LNo license3
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