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/ArduinoTwentypad
HarryCutts
79 × 122.4 mm44 parts2LNo license0
AVR/ArduinoBus beaglebone
makerbus
100 × 50 mm44 parts2LNo license0
AVR/ArduinoMgc m16a
0x007E
33 × 48.9 mm44 parts2LCC-BY-NC-4.00
AVR/ArduinoSputterizer
cameronhotchkies
46 × 110 mm44 parts2LNo license0
AVR/ArduinoSlice RTDM
feastorg
70 × 100 mm44 parts2LGPL-3.00
AVR/ArduinoFlowcontrol
bl433
251.1 × 155 mm44 parts2LMIT0
AVR/ArduinoCR2021 CPU v2
derpflanz
178.4 × 115.6 mm43 parts2LNo license0
AVR/ArduinoLight-Tracker
nmahadevan12
74 × 49.5 mm43 parts4LNo license0
AVR/ArduinoBest84kb
igagis
92 × 54.5 mm43 parts2LMIT0
AVR/ArduinoFx blocks
cookiemonsternz
55 × 25 mm43 parts2LNo license0
AVR/ArduinoThrottleControllerMainRev
asfarley
45.3 × 46 mm43 parts2LNo license0
AVR/ArduinoTwo motor
owhite
78 × 60 mm43 parts4LNo license0
AVR/ArduinoAtmega32
George-Emad31
97.5 × 58 mm43 parts4LNo license0
AVR/ArduinoPi switcher plus
FibStack
65 × 56 mm43 parts2LCustom license0
AVR/ArduinoSelfaware wearable device
aqesters
42 × 15 mm43 parts2LMIT0
AVR/ArduinoEnvironmental-Data-Acquisition-System-Hardware
jscastonguay
88.4 × 68.1 mm43 parts2LMIT0
AVR/ArduinoPowerMonitor
kk6axq
101.4 × 50.6 mm43 parts2LGPL-3.00
AVR/ArduinoBus raspberry pi
100 × 50 mm42 parts2LNo license0
AVR/ArduinoLEC032002-Module va et vient pour navette en analogique ou funiculaire
LECTIX
49 × 48 mm42 parts2LCERN-OHL-S-2.00
AVR/ArduinoItsy-Bitsy
0101shift
28 × 28 mm42 parts2LNo license0
AVR/ArduinoAvrisp mkII
joshajohnson
51.3 × 17 mm42 parts2LCERN-OHL-1.20
AVR/ArduinoMain V5
cmsc-stageworks
133 × 124.4 mm42 parts4LNo license0
AVR/ArduinoAttiny10prog
antonloof
62 × 57 mm42 parts2LNo license0
AVR/ArduinoKapTesterV2
Lancarr8
90 × 70 mm41 parts2LNo license0
AVR/ArduinoMark duino
MarkFromSales
111.8 × 61 mm41 parts4LUnlicense0
AVR/ArduinoYin-Yang
49.8 × 49.8 mm41 parts4LNo license0
AVR/ArduinoArduinoMega6axis
AlanFord
109.2 × 81.8 mm41 parts2LNo license0
AVR/ArduinoKM11 mainboard
fjalvingh
131.8 × 80 mm41 parts2LNo license0
AVR/ArduinoYukuyuku UNO R3
zukki4123
68.6 × 53.3 mm41 parts2LMIT0
AVR/ArduinoSlice HEAT
70 × 100 mm41 parts2LGPL-3.00
AVR/ArduinoAcdc
evolutek
65 × 60 mm41 parts2LNo license0
AVR/ArduinoCatWANGrrrove
ElectronicCats
40 × 50 mm41 parts2LMIT0
AVR/ArduinoRobotHat
aliaafee
65 × 63.5 mm40 parts2LNo license0
AVR/ArduinoMgc xmega64
33 × 48.9 mm40 parts2LCC-BY-NC-4.00
AVR/ArduinoLeonardoBB
asukiaaa
48 × 58 mm40 parts2LNo license0
AVR/ArduinoMGMS PCB-PcbDoc
liu2g
96 × 71.4 mm40 parts2LMIT0
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