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/ArduinoJONICA
mhechavarria
276 × 165.3 mm59 parts2LNo license0
AVR/ArduinoLED Cube 5X5X5
jkordek1
100 × 100 mm59 parts2LNo license0
AVR/ArduinoSoldering Fume Extractor
lizard-electronics
140 × 30 mm59 parts2LNo license0
AVR/ArduinoSeriallight
eurovibes
50 × 50 mm59 parts2LNo license0
AVR/ArduinoCbEval.ATtiny412 1614
boderu
35 × 108 mm59 parts2LNo license0
AVR/ArduinoFinal Board v3D
Petros-Kapetanios
79.3 × 87.5 mm59 parts4LNo license0
AVR/ArduinoRpi-GC-Oven-Controller
Pharmaceutical-Analysis
120 × 100 mm58 parts2LNo license0
AVR/ArduinoBeamBuddy
adammhaile
84.5 × 41.3 mm58 parts2LMIT0
AVR/ArduinoCircuit tap
gcoonrod
99.1 × 75.7 mm58 parts4LApache-2.00
AVR/ArduinoAthanLamp
Mahmoud1205
76 × 45.2 mm57 parts2LMIT0
AVR/ArduinoNano delay pedal
barlasardic
55.9 × 88.9 mm57 parts2LMIT0
AVR/ArduinoDriver boostcon
sjaxel
100 × 80 mm57 parts2LNo license0
AVR/ArduinoCont board
lbligh
238 × 67 mm57 parts2LNo license0
AVR/ArduinoAvr ac400
julian7
105.4 × 76.2 mm57 parts2LCC-BY-4.00
AVR/ArduinoCustom-Arduiono-Board
marrynrv
68.6 × 53.3 mm57 parts2LNo license0
AVR/ArduinoBivalveBit RevF
millerlp
89.9 × 17.8 mm57 parts2LGPL-3.00
AVR/ArduinoABIISS Datapod module
pedrolpena
149.3 × 152.5 mm57 parts2LNo license0
AVR/ArduinoEuclidean-VCA
cookiemonsternz
107 × 60.6 mm56 parts2LNo license0
AVR/ArduinoServoShield
freetronics
68.6 × 53.3 mm56 parts2LNo license0
AVR/ArduinoBabyHandsKeyboard
FionaCutler
186.1 × 136.5 mm56 parts2LNo license0
AVR/ArduinoController mb atu
c3h9dx
115 × 69.8 mm56 parts2LNo license0
AVR/ArduinoElectric-Drive-Systems
DileepChilla
130 × 93 mm55 parts2LCC-BY-4.00
AVR/ArduinoAvr hvpp
ozforester
100.2 × 99.1 mm55 parts2LMIT0
AVR/ArduinoMyDewControllerPro
danb35
100 × 80 mm55 parts2LNo license0
AVR/ArduinoEsp32-cellular shield
iotmakervn
68.6 × 53.3 mm55 parts2LNo license0
AVR/ArduinoPika-Board-Files
FrenzyExists
85.7 × 118.3 mm55 parts2LNo license0
AVR/ArduinoLaser tunnel
aidtopia
75 × 75 mm55 parts2LNo license0
AVR/ArduinoPCB PAMI 2025-2026
prichert17
125 × 84 mm55 parts2LNo license0
AVR/ArduinoBlanceCarProject
Andy-Cheng1017
77.9 × 21.1 mm55 parts2LNo license0
AVR/ArduinoMini-Power-Gauge
oct-karim
92.1 × 99.4 mm54 parts2LNo license0
AVR/ArduinoCW keyer
ekinefe
238 × 113.9 mm54 parts2LNo license0
AVR/ArduinoDC-34-Countdown-To-Singularity
eggsactly
145.3 × 221.5 mm54 parts2LNo license0
AVR/ArduinoMakropad
doenertrinker909
137.2 × 82.6 mm53 parts2LNo license0
AVR/ArduinoVideo sight test board
Kehaar38
99.1 × 99.1 mm53 parts2LNo license0
AVR/ArduinoPolly power
icnagy
134.8 × 53.3 mm53 parts2LNo license0
AVR/ArduinoProgramator
Nesta2008
194 × 139 mm53 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