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/ArduinoTelescopeController
pauladam316
139 × 74 mm77 parts2LNo license0
AVR/ArduinoUI
adsehgal
120 × 120 mm75 parts2LNo license0
AVR/ArduinoM68k hbc
ehbc-project
304.8 × 243.8 mm72 parts6LNo license0
AVR/ArduinoBooster-Shield
martinfantini
112.7 × 198.2 mm71 parts2LNo license0
AVR/ArduinoDigiPot Evaluation Board
mar0x
114.3 × 163.2 mm71 parts2LNo license0
AVR/ArduinoAircon control rounded
lbrushmanl
58 × 46 mm71 parts2LNo license0
AVR/ArduinoDigitalClock ATMega328
bostang
68.9 × 50.7 mm70 parts4LNo license0
AVR/ArduinoChorus
rabidaudio
54.6 × 95.3 mm70 parts2LNo license0
AVR/ArduinoUFH Process Computer - CPU
csdexter
90.9 × 84.6 mm69 parts2LGPL-3.00
AVR/ArduinoLab 8 Breadboard
MVaugn
167.6 × 114.3 mm67 parts2LNo license0
AVR/ArduinoMain board
MST-Robotics
81.6 × 88.6 mm67 parts2LNo license0
AVR/ArduinoMAIN V1.2
akihiro-kataoka
100 × 115 mm67 parts2LNo license0
AVR/ArduinoMainPCB REV 3
nolanconrad
70.2 × 67.8 mm66 parts2LNo license0
AVR/ArduinoLogic
try-except
65.6 × 64.6 mm66 parts2LNo license0
AVR/ArduinoORA Control Board Rev 1.1
gtrupiano
100 × 60 mm65 parts2LNo license0
AVR/ArduinoORA CONTROLBOARD REV1
oaklandrobotics
100 × 60 mm65 parts2LNo license0
AVR/Arduino6502 DebugBoard
DomAtTheShack
199.6 × 114.2 mm64 parts2LNo license0
AVR/ArduinoORCA Control Board
LukeDWaller99
99.1 × 99.1 mm64 parts2LNo license0
AVR/ArduinoAudio
directionizer
64 × 64 mm62 parts2LGPL-3.00
AVR/ArduinoAkira board
MeltedIceCubes
110 × 94 mm61 parts2LNo license0
AVR/ArduinoMEGA2560 Rev3e
NadjB
101.6 × 53.3 mm60 parts2LNo license0
AVR/ArduinoMagician main board
magician-project
72 × 79 mm59 parts2LNo license0
AVR/ArduinoXDuinoRail-RailComShield
chatelao
48.1 × 53 mm59 parts2LAGPL-3.00
AVR/ArduinoElektroniikkapaja vastaanotin
ripaskajaska
77 × 77 mm58 parts2LNo license0
AVR/ArduinoRAM
Robert-Riordan-UCD
133 × 58.5 mm57 parts2LCERN-OHL-P-2.00
AVR/ArduinoBivalveBit
millerlp
89.9 × 17.8 mm53 parts2LGPL-3.00
AVR/ArduinoPIU LED DRIVER SMALL
pogof
80 × 64 mm52 parts2LNo license0
AVR/ArduinoECMeter
BB-KING777
69.6 × 65.5 mm52 parts2LNo license0
AVR/ArduinoKicad test redo
maxsterl666
161.8 × 180 mm50 parts4LNo license0
AVR/ArduinoRc car
qb-creates
35 × 40 mm50 parts2LMIT0
AVR/ArduinoCyro plunger transmissive photogate
Llamero
122 × 70 mm50 parts2LApache-2.00
AVR/ArduinoLab5-Diogo Silva
D10G0S1LVA
68.6 × 53.3 mm49 partsNo license0
AVR/ArduinoRevo servo
ratmuds
41 × 44 mm49 parts4LMIT0
AVR/ArduinoSplay
rek
154.7 × 90.8 mm47 parts2LNo license0
AVR/Arduino03010-002
marian-scientific
208.2 × 95.3 mm47 parts2LNo license0
AVR/ArduinoWaveWise Buoy
GenerateNU
67.8 × 76.2 mm47 parts4LNo 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