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/ArduinoIV6Clock2 base
SarahAlroe
99.1 × 45.7 mm36 parts2LNo license1
AVR/ArduinoCamplight
codingkatty
76.1 × 25.4 mm36 parts4LMIT1
AVR/ArduinoInterfaceBoard
TeamMeanMachine
6.4 × 6.4 mm36 parts2LUnlicense1
AVR/ArduinoLEC008011---Module sonore pour sons d ambiance
LECTIX
53 × 53 mm36 parts2LCERN-OHL-S-2.01
AVR/ArduinoHSOD-Home-Security-Of-DOOM
NattDocumented
94.6 × 120.6 mm35 parts2LNo license1
AVR/ArduinoVersaWriter
jp3cyc
60 × 120 mm34 parts2LMIT1
AVR/ArduinoNixie Clock
haXoru5
140 × 60 mm34 parts2LNo license1
AVR/ArduinoAPRS Nanomodem
motivemachine
31.8 × 29.5 mm33 parts2LMIT1
AVR/ArduinoMainBoard
Finomnis
100 × 40 mm33 parts2LMIT1
AVR/ArduinoHeater shield
diegodierick
68.6 × 53.3 mm33 parts2LNo license1
AVR/ArduinoDevelopment boards
Coolbots7
21 × 50 mm33 parts2LNo license1
AVR/ArduinoArduino-Minimal-Design
SushantSaroch13
34 × 59.6 mm33 parts2LNo license1
AVR/ArduinoDigital-Stethoscope
Ashley-Ann-Benoy
63 × 39 mm33 parts2LNo license1
AVR/ArduinoSyzygy breakout flash-1V8XL
adamcritchley
105.6 × 76 mm33 parts4LMIT1
AVR/ArduinoPico04
HumphreyKwok
38.3 × 41.8 mm33 parts2LMIT1
AVR/ArduinoArmLEDsPrototype
Brelee2222
80.5 × 54.6 mm33 parts2LNo license1
AVR/Arduino1KVA-SINE-WAVE-POWER-INVERTER
Ogbonna-Joseph
111.1 × 44.5 mm33 parts2LNo license1
AVR/ArduinoJazzhands main
wearpants
64.9 × 33 mm32 parts2LNo license1
AVR/ArduinoRpi ibex hyperpixel
jovan3
99.1 × 113.5 mm32 parts2LGPL-3.01
AVR/ArduinoBusinesscard
Miceuz
80 × 48 mm32 parts2LNo license1
AVR/ArduinoGas sensor
Hackuarium
100 × 100 mm32 parts2LNo license1
AVR/ArduinoNoname 2
ARTS-Laboratory
63.5 × 55.9 mm32 parts2LCC-BY-SA-4.01
AVR/ArduinoAttiny85 time switch
UCSIG
85.7 × 85.7 mm32 parts2LMIT1
AVR/ArduinoSlice DCMT
feastorg
70 × 100 mm32 parts2LGPL-3.01
AVR/ArduinoGrinder timer
Clewsy
75 × 120 mm31 parts2LMIT1
AVR/ArduinoClock rtc
kseebaldt
100 × 100 mm31 parts2LNo license1
AVR/ArduinoSD Tape Player
GadgetReboot
62.5 × 67 mm31 parts2LNo license1
AVR/ArduinoGNSS GPS L86-M33 breakout with easyC
SolderedElectronics
54 × 38 mm31 parts2LTAPR-OHL-1.01
AVR/ArduinoCamera crane
209 × 105 mm30 parts2LNo license1
AVR/ArduinoModified sine inverter gwo pid
mofaa69
92.7 × 91.4 mm30 parts2LNo license1
AVR/ArduinoPrimary
ut-ras
104.1 × 53.3 mm30 parts2LNo license1
AVR/Arduino4164-41256-tester
popovb
76.2 × 43.7 mm30 parts2LNo license1
AVR/ArduinoCentral panel
bitsandpixels-io
78.7 × 74.9 mm30 parts2LMIT1
AVR/ArduinoTempLoggerNG
miree
56.9 × 45 mm29 parts2LGPL-2.01
AVR/ArduinoSlice PRTO CONN S2L
70 × 100 mm29 parts2LGPL-3.01
AVR/ArduinoF-Stop DarkRoomTimer
c1rk1
121 × 70 mm29 parts2LBSD-3-Clause1
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