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/ArduinoDigit Colon
kuellenberg
140.5 × 213 mm108 parts2LNo license0
AVR/ArduinoCustom PSU
GodOfStrategy
99.6 × 73.1 mm105 parts2LNo license0
AVR/ArduinoHangeulClock DIY v2
gogomaker
156.5 × 152.5 mm104 parts2LNo license0
AVR/ArduinoCame IWQ
f1iwq2
175 × 95 mm103 parts2LNo license0
AVR/ArduinoKicad selka mk2
Jan-Aarela
64.8 × 101.7 mm102 parts2LNo license0
AVR/ArduinoSteve v3
Marcus10110
88.9 × 94.6 mm102 partsNo license0
AVR/ArduinoAVR
reivax-boucoi
75 × 100 mm102 parts4LGPL-3.00
AVR/ArduinoAsme rover elec prog
Eltohfa
108.5 × 66.6 mm102 parts4LUnlicense0
AVR/ArduinoDesign-Assembly and-Commissioning of a-GreenPHY-Based-EVSE-Signalling and-Communication-Emulator
Shriniketpk2124
250 × 121 mm101 parts2LNo license0
AVR/ArduinoTenet
spilliams
276.3 × 118.4 mm101 parts2LUnlicense0
AVR/ArduinoLED DisplayV2
Aitthikit
120 × 120 mm101 parts4LNo license0
AVR/ArduinoOrder4 notent
nEDM-TUM
137 × 65 mm100 parts2LNo license0
AVR/ArduinoPeopleMover
FionaCutler
244.5 × 77.8 mm100 parts2LNo license0
AVR/ArduinoMaison JP DJ
Antoine-GG
96.9 × 99.9 mm100 parts4LNo license0
AVR/ArduinoChi Chi
eesakiii
169 × 170 mm100 parts2LNo license0
AVR/ArduinoDmx panel controller
akornsys-rdi
80 × 80 mm99 parts2LCC-BY-SA-4.00
AVR/ArduinoBackplane
greyltc
121.9 × 88.9 mm99 parts2LCERN-OHL-1.20
AVR/ArduinoEcng4504-maze solver team 5
elshazlio
142.3 × 80.5 mm99 parts4LMIT0
AVR/Arduino6502atty
bendooks
112.5 × 124.5 mm98 parts2LCERN-OHL-S-2.00
AVR/ArduinoBowelProbe
ashertok1
87.1 × 40.4 mm98 parts4LNo license0
AVR/ArduinoCSD Cylindrical Scanner Device
maxtat3
70.5 × 95.3 mm98 parts2LNo license0
AVR/ArduinoTml
0x007E
72.4 × 48.3 mm97 parts2LCC-BY-NC-4.00
AVR/ArduinoControl board
edatki
124 × 113 mm95 parts2LNo license0
AVR/ArduinoNixie Clock
PennyLekas
115 × 80 mm94 parts2LCERN-OHL-S-2.00
AVR/ArduinoClockOmat
cybaer
30.5 × 114.3 mm92 parts2LNo license0
AVR/ArduinoSamro Bedienbox
al3c00
124 × 47 mm92 parts2LNo license0
AVR/ArduinoGap
76 × 47 mm92 parts2LCC-BY-NC-4.00
AVR/ArduinoNightGlow RevA.1
PrinceOfDuloc
160 × 160 mm91 parts2LNo license0
AVR/ArduinoKvm pad
carbncl
3.7 × 3.7 mm91 parts2LCERN-OHL-S-2.00
AVR/ArduinoTermoHumi
LinJesUxUs
60.1 × 20.1 mm91 parts2LNo license0
AVR/ArduinoMobile Monitor Redesign
deogratius2phantom
49 × 39.1 mm90 parts4LNo license0
AVR/ArduinoKeypad underglow
Fabian0520
78.5 × 116.3 mm90 parts2LCustom license0
AVR/ArduinoKeypad underglow
78.5 × 116.3 mm90 parts2LCustom license0
AVR/ArduinoArduino DCC++
danielvilas
100 × 88 mm89 parts2LMIT0
AVR/ArduinoSlice LVAI
feastorg
70 × 100 mm89 parts2LGPL-3.00
AVR/ArduinoRipple tank
practable
100 × 100 mm89 parts4LAGPL-3.00
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