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/ArduinoOrangepione with supply
cnlohr
69.9 × 48.8 mm29 parts2LMIT1
AVR/ArduinoAtmega BM83 RevB
Antonio-Balestrino
114.3 × 88.9 mm29 parts2LApache-2.01
AVR/ArduinoBREAD slice v2
OSHE-Github
100 × 79 mm28 parts2LNo license1
AVR/ArduinoSpeedyMAP
venderbroeck
100 × 100 mm27 parts2LGPL-2.01
AVR/ArduinoLocoNet Shield
acwright
55 × 55 mm26 parts2LMIT1
AVR/ArduinoAtmega328
owhite
55.3 × 55.3 mm25 parts2LGPL-3.01
AVR/ArduinoUno PH2.0 ExternBoardV3.1
nulllaborg
58.2 × 53.2 mm24 parts2LNo license1
AVR/ArduinoPs2 mouse to serial port adapter stand alone
knightfox75
90 × 70 mm23 parts2LMIT1
AVR/ArduinoOLnodeV05 doppelt
ktt-ol
36.8 × 45 mm23 parts2LNo license1
AVR/ArduinoNixie Clock
haXoru5
140 × 60 mm22 parts2LNo license1
AVR/ArduinoMCU ATMEGA328p minimum
m0in92
48.5 × 76.8 mm21 parts2LNo license1
AVR/ArduinoROCKSAT Modules V1
K-Eckert15
76.2 × 76.2 mm20 parts2LNo license1
AVR/ArduinoLine follower mainboard
GR3Y-SCALE
95 × 45 mm18 parts2LNo license1
AVR/ArduinoInfra speed.2
KaburaJ
54.6 × 53.3 mm17 parts2LNo license1
AVR/ArduinoExams2023
Sofianopoulou
125 × 50 mm16 parts2LMIT1
AVR/ArduinoMotor
ut-ras
86.5 × 53.3 mm16 parts2LNo license1
AVR/ArduinoReceiver
damianmoore
30.5 × 68.6 mm14 parts2LNo license1
AVR/ArduinoSpo2
kyriosaa
75 × 50 mm14 parts4LNo license1
AVR/ArduinoLichtschranke-M-tube
REcassy
40 × 60 mm12 parts2LGPL-3.01
AVR/ArduinoHall effect sensor digital easyC
SolderedElectronics
22 × 22 mm12 parts2LTAPR-OHL-1.01
AVR/ArduinoPumpModule
dmitry131131
55 × 105 mm12 parts2LNo license1
AVR/ArduinoHall effect sensor analog easyC
22 × 22 mm12 parts2LTAPR-OHL-1.01
AVR/ArduinoPractice1
m3llo0n
37.4 × 21 mm11 parts2LNo license1
AVR/ArduinoArduinoBreakoutboardControl
SoonerRobotics
66.7 × 86.7 mm9 parts2LNo license1
AVR/ArduinoKids control panel-2
bitsandpixels-io
68.6 × 53.3 mm8 parts2LMIT1
AVR/ArduinoINSARIANNE1 haut - v3
BenCestMoiQuoi
94 × 94 mm7 parts2LNo license1
AVR/ArduinoRobust io.before current
lusher00
160 × 100 mm259 parts4LCustom license0
AVR/ArduinoRetro-003
githubgilhad
100 × 100 mm247 parts4LGPL-3.00
AVR/ArduinoMEP MAXI 85V-1 REV 2 Keypad
JGilcreast
209 × 97.3 mm203 parts4LNo license0
AVR/ArduinoUnderdog
MIsfitMatty
100 × 99.8 mm202 parts2LGPL-2.00
AVR/ArduinoAMS slave
HKUST-Red-Bird-Racing-EVRT
68 × 110 mm189 parts2LNo license0
AVR/ArduinoPID Board SMT
AaronDoubert
100 × 100 mm184 parts2LNo license0
AVR/ArduinoMM-control
sl1pkn07
106 × 45 mm161 parts4LNo license0
AVR/ArduinoRelaisAdderII
apxco
183.3 × 105 mm160 parts2LNo license0
AVR/ArduinoBakeneko-60
ojas-mediratta
284.7 × 94.2 mm154 parts2LNo license0
AVR/ArduinoJAWS65Mega32u4-AU.kicad
jaredlcs
303.8 × 94.2 mm152 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