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/ArduinoCHEN TEITI Gas Sensor
MOSH-Insa-Toulouse
71.1 × 48.3 mm21 parts2LNo license0
AVR/ArduinoMinimal Programmer v01
rzuehlsd
67.5 × 68 mm21 parts2LNo license0
AVR/ArduinoBike normal
eliassjogreen
43.2 × 48.3 mm21 parts2LMIT0
AVR/ArduinoReceiver
devansh2004sharma-tech
66.5 × 39 mm21 parts2LNo license0
AVR/ArduinoElevator-Controller
Delibot-Lab
70 × 70 mm21 parts2LApache-2.00
AVR/ArduinoAlami Powar Gas Sensor Shield
68.6 × 53.3 mm21 parts2LNo license0
AVR/ArduinoVoltage Meter
LuizFernandoOliveira
28.1 × 50.8 mm21 parts2LNo license0
AVR/ArduinoATtiny45-Motor driver and-Led-Matrix-3-3
Mohamed-Tarek-Marzouk
72.7 × 28.8 mm21 parts2LNo license0
AVR/ArduinoDesign task temp controlled heating circuit
AlAminAshik
96.6 × 51.3 mm21 parts2LNo license0
AVR/ArduinoSTTS
EthanKerman
85.5 × 54 mm21 parts2LNo license0
AVR/ArduinoToy satellite model
el-bart
43.7 × 21.1 mm21 parts2LBSD-3-Clause0
AVR/ArduinoMostekDumper
chregu82
100 × 57 mm21 parts2LNo license0
AVR/ArduinoSlice BUCK
feastorg
70 × 100 mm21 parts2LGPL-3.00
AVR/ArduinoRobotArm
EthanLawlor
50.9 × 36.5 mm21 parts2LGPL-3.00
AVR/ArduinoTP MOSH CapGaz
68.6 × 53.3 mm21 parts2LNo license0
AVR/ArduinoWeather baloon
h3xadecima1
70 × 56 mm21 parts2LNo license0
AVR/ArduinoHKN-BetaPsi-DIY-Watch-Kit
jamusix99
49.6 × 66 mm21 parts2LNo license0
AVR/ArduinoLED-PCB-Controller
audy910
44.5 × 100 mm21 parts2LNo license0
AVR/ArduinoGyroscreen
royalmo
25.9 × 21.1 mm20 parts2LGPL-3.00
AVR/ArduinoPiZero-GRBL-Hat
dwinters42
65 × 30 mm20 parts2LMIT0
AVR/Arduino7seg8bit
hotkeysoft
43.9 × 19.8 mm20 parts2LMIT0
AVR/ArduinoHW-LEEK-001
diva-eng
73.2 × 96.2 mm20 parts2LMIT0
AVR/ArduinoA2R-100k
mgiesen
68 × 23 mm20 parts2LNo license0
AVR/ArduinoModuleController
dennis9819
68.3 × 90 mm20 parts2LAGPL-3.00
AVR/ArduinoGame pad-
MohamedHassanExp
108.6 × 46 mm20 parts2LMIT0
AVR/ArduinoSlice SERV
70 × 100 mm20 parts2LGPL-3.00
AVR/ArduinoPrrpls406
jimktrains
8 × 8 mm20 parts2LAGPL-3.00
AVR/ArduinoChristmas board
MangoIV
93.7 × 129.4 mm20 parts2LNo license0
AVR/ArduinoPOV-Display
harshini-subbiah
50 × 229 mm20 parts2LNo license0
AVR/ArduinoNemo
patricab
69.7 × 24.5 mm20 parts2LNo license0
AVR/ArduinoGate-Access-Control
George-P-1
85.4 × 38 mm20 parts2LNo license0
AVR/ArduinoHeart
CesarOtoniel
53.8 × 20.9 mm19 parts2LApache-2.00
AVR/ArduinoTiny PWM
marceloh220
85.1 × 40.6 mm19 parts2LMIT0
AVR/ArduinoMSS-Crossover-Tiny
dabridgham
68.8 × 48.6 mm19 parts2LNo license0
AVR/ArduinoATtinyStep
penayush-tronics
42 × 23.5 mm19 parts2LNo license0
AVR/ArduinoCombined
neatstranger
94 × 119.4 mm19 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