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/ArduinoOHSBadge
wyolum
101.6 × 78.7 mm116 parts2LNo license1
AVR/ArduinoRadioDev
tmolteno
100 × 75 mm99 parts4LGPL-3.01
AVR/ArduinoArduino nano with battery integration
Chirag-Vadrali
79.5 × 35.7 mm90 parts4LNo license1
AVR/ArduinoTYPING TRAINER V5 SMD
cuprice
261.1 × 81.5 mm89 parts2LMIT1
AVR/ArduinoModular eside rev14
specs32
95 × 65 mm80 parts2LNo license1
AVR/ArduinoPlasma Pilot4
xdmattz
85.1 × 38.1 mm78 parts2LNo license1
AVR/ArduinoKeyboard3-R
e04
130.8 × 111 mm77 parts2LNo license1
AVR/ArduinoSIGNAL
Oerdna
100 × 100 mm69 parts4LAGPL-3.01
AVR/ArduinoChocobanan right
leonrat
168.4 × 92.3 mm66 parts2LNo license1
AVR/ArduinoORCA Control Board
LukeDWaller99
99.1 × 99.1 mm64 parts2LNo license1
AVR/ArduinoSensor interface 1.1.0
WATonomous
68.6 × 53.3 mm60 parts2LNo license1
AVR/ArduinoShield
ksmonkey123
52.7 × 53.3 mm57 parts2LMIT1
AVR/ArduinoCircuit
mikeyfarrow
29 × 86.6 mm57 parts2LNo license1
AVR/ArduinoLabnodeCAN
das-labor
284.4 × 124 mm57 parts2LNo license1
AVR/ArduinoBSPD
FormulaBartonRacing
65.1 × 52.9 mm56 parts2LNo license1
AVR/ArduinoESC atmega8
fademike
23 × 23 mm51 parts2LNo license1
AVR/ArduinoBebl v2 main
80 × 24 mm51 parts2LNo license1
AVR/ArduinoNova pcb v6
Ace2932
112 × 90 mm51 parts4LMIT1
AVR/ArduinoArm interface board panel
Roboy
189.6 × 31.8 mm49 parts2LNo license1
AVR/Arduino13852-Redboard.Edge panel.v10
sparkfun
101.6 × 38.1 mm48 parts2LMIT1
AVR/ArduinoPid smt oven ver1
ntchris
71.1 × 49.3 mm48 parts2LGPL-3.01
AVR/ArduinoArduino usb c
wszeto9
98.4 × 99.5 mm47 parts2LNo license1
AVR/ArduinoChickencoop3.3
vinthewrench
130 × 100 mm47 parts2LMIT1
AVR/ArduinoGlycon 02 16
Snektron
200 × 100 mm46 parts2LNo license1
AVR/ArduinoController
le-flav-b
140 × 81 mm45 parts2LNo license1
AVR/ArduinoBMS MK2 attempt 1-using-Tp4506
Wierdwizard2587
226.6 × 64 mm42 parts2LNo license1
AVR/ArduinoFaultLatcher
uvmaero
42.6 × 56.3 mm39 parts2LNo license1
AVR/ArduinoTachometer Rev A
PotatoX
78.6 × 60.8 mm37 parts2LCC-BY-NC-4.01
AVR/ArduinoVga
agkaminski
129.5 × 74.2 mm36 parts2LNo license1
AVR/ArduinoMainboard
LOEWE-emergenCITY
100 × 100 mm36 parts2LNo license1
AVR/ArduinoAtlas MCU Board
manpreet-singh
57.1 × 50 mm35 parts4LGPL-3.01
AVR/ArduinoLED Panel
Plasmarobo
151.1 × 95.3 mm34 parts2LCC-BY-NC-4.01
AVR/ArduinoBusinesscard panelized
Miceuz
80 × 48 mm32 parts2LNo license1
AVR/ArduinoSensorBoard
TeamMeanMachine
50.8 × 43.2 mm32 parts2LUnlicense1
AVR/ArduinoPrototype
ARTS-Laboratory
60.2 × 52.8 mm32 parts2LCC-BY-SA-4.01
AVR/ArduinoGNSS GPS L86-M33 breakout with easyC panel
SolderedElectronics
162 × 164 mm31 parts2LTAPR-OHL-1.01
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