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/ArduinoMAIN
nolanconrad
94 × 120 mm72 parts2LNo license0
AVR/ArduinoElektroniikkapaja
ripaskajaska
77 × 77 mm72 parts2LNo license0
AVR/ArduinoLt counter
janos-raul
145.2 × 87.1 mm72 parts2LGPL-2.00
AVR/ArduinoRodgers-890-midi
jhpinder
96.3 × 93.5 mm72 parts2LNo license0
AVR/ArduinoMidi footswitch v2
nathanlong85
109 × 74.6 mm72 parts2LMIT0
AVR/ArduinoFull Circuit
EthanSousaProjects
110 × 110 mm72 parts2LGPL-3.00
AVR/ArduinoMulticartridge smd-32u4-front dipswitch
ifilot
80 × 100 mm72 parts2LNo license0
AVR/ArduinoSnowBOARD
egeozgul
125.7 × 64.9 mm72 parts2LNo license0
AVR/ArduinoRF-Tin-Can
ECE411-Fall2021-Group4
70 × 70 mm72 parts2LGPL-3.00
AVR/ArduinoAircon control
lbrushmanl
58 × 46 mm71 parts2LNo license0
AVR/ArduinoPCB4 Noods
ahaimour2005
107 × 78 mm71 parts2LMIT0
AVR/ArduinoOtis34
indianpojken
211.5 × 72.4 mm70 parts2LNo license0
AVR/ArduinoPtSolar
custom-ds
38.5 × 73.5 mm70 parts4LGPL-3.00
AVR/ArduinoWaveWise Submersible
GenerateNU
136.8 × 50.8 mm70 parts4LNo license0
AVR/ArduinoKlxecu
JourneyMan61
129.5 × 73.7 mm70 parts2LNo license0
AVR/ArduinoZXSwinSID
schenkmi
78.4 × 49.9 mm69 parts2LGPL-3.00
AVR/ArduinoH9ps
c3h9dx
70 × 60 mm69 parts2LNo license0
AVR/ArduinoHorloge accelerometer
malik019
42 × 42 mm69 parts2LNo license0
AVR/ArduinoAnnahsingh clock
Annah03
140 × 90 mm69 parts2LNo license0
AVR/ArduinoSilent audio motion
akornsys-rdi
70 × 50 mm68 parts2LGPL-3.00
AVR/ArduinoGlutte batteries
Glutte
100 × 85 mm68 parts2LNo license0
AVR/ArduinoBQ24257-MPPT-TEST-KIT
eigenlucy
57.4 × 51.5 mm68 parts4LNo license0
AVR/ArduinoDerTempomat
cybaer
40.6 × 109.2 mm67 parts2LNo license0
AVR/ArduinoPower-Testing-Board
MatthewBasha
230 × 170 mm67 parts4LNo license0
AVR/ArduinoServoBoard
jeffrey500
82.8 × 53.3 mm66 parts2LNo license0
AVR/ArduinoNixie clock
pimborman
189 × 55 mm66 parts4LNo license0
AVR/ArduinoSmart-Battery
G-Deni
28 × 10 mm66 parts2LNo license0
AVR/ArduinoCommande des OYAs - Maître RS485 - "Maître des OYAs"
bpmine
132.4 × 70.8 mm66 parts2LNo license0
AVR/ArduinoFs10-atmega32u4-monitor
libertathiest
58 × 68.5 mm66 parts2LNo license0
AVR/ArduinoMódulo Aprendizaje Microcontroladores AVR
ieee-cas-unmsm
104.5 × 103.5 mm65 parts2LNo license0
AVR/ArduinoORA Control Board Rev 1
gtrupiano
100 × 60 mm65 parts2LNo license0
AVR/ArduinoNH-AirQuality
NottingHack
90.5 × 53 mm65 parts4LNo license0
AVR/ArduinoORA Control Board Rev 1
oaklandrobotics
100 × 60 mm65 parts2LNo license0
AVR/ArduinoPCB updi unbricker
k-takata
54 × 47.5 mm65 parts2LNo license0
AVR/ArduinoArduinoEquipped
kaustubh850
69.8 × 53.3 mm65 parts2LNo license0
AVR/ArduinoBoard
DATX02-19-04
93.3 × 42.7 mm64 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