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/ArduinoPower board v1
misko
100 × 65 mm133 parts4LNo license12
AVR/ArduinoEA5IOT GPSDO
EA5IOT
130.8 × 53.6 mm93 parts2LGPL-3.012
AVR/Arduino6ch sound processor
dilshan
59 × 60 mm69 parts2LMIT12
AVR/ArduinoSotka
pohjolaworks
133.1 × 117.4 mm68 parts2LMIT12
AVR/ArduinoMysteripad
piit79
76.2 × 146.6 mm67 parts2LGPL-3.012
AVR/ArduinoWaft
AudioMorphology
58 × 109 mm57 parts2LNo license12
AVR/ArduinoScampi
mackieks
20 × 20 mm55 parts2LSHL-2.112
AVR/ArduinoKicad Smart Watch
AFLProjects
36.4 × 29.4 mm48 parts2LNo license12
AVR/ArduinoFanController
newAM
80 × 50 mm48 parts2LMIT12
AVR/ArduinoArduino
aspro648
68.6 × 53.3 mm43 parts2LNo license12
AVR/ArduinoBadge2016
cryptovillage
76.2 × 76.2 mm43 parts2LNo license12
AVR/ArduinoAVR-ZIF-Programmer
jbtronics
96.5 × 76.2 mm34 parts2LNo license12
AVR/ArduinoOpenstint transponder
zsellera
18.5 × 15 mm34 parts4LNo license12
AVR/ArduinoP300 Arduino IF
svenjust
159.4 × 48.3 mm34 parts2LGPL-3.012
AVR/ArduinoStewart-Platform-Head-Massager
daveydaid
101.6 × 53.3 mm27 parts2LGPL-3.012
AVR/ArduinoPCB ATtiny85
tidus747
80.3 × 58.6 mm25 parts2LGPL-3.012
AVR/ArduinoTt nano HAT b2
vektorious
34 × 59 mm21 parts2LCC-BY-SA-4.012
AVR/Arduino2-digit-Turbo-Display
wiretap-retro
39.1 × 30 mm15 parts2LNo license12
AVR/ArduinoDiyIrTower
maehw
32 × 48 mm10 parts2LGPL-3.012
AVR/ArduinoDram tester
necroware
56.5 × 43.2 mm8 parts2LCC-BY-SA-4.012
AVR/ArduinoBeat707
FrankBuss
276.9 × 142.2 mm263 parts2LNo license11
AVR/ArduinoThe Bonkulator
shannon-greenlight
70.8 × 110 mm255 parts4LGPL-3.011
AVR/ArduinoStorre
mohoyt
304.8 × 146.8 mm195 parts2LCC-BY-NC-4.011
AVR/ArduinoMfk60
niw
171.5 × 95.3 mm162 parts2LMIT11
AVR/ArduinoOkey65
kiks64
255.7 × 104.3 mm154 parts2LNo license11
AVR/ArduinoEtherDue
freetronics
101.6 × 53.3 mm153 partsNo license11
AVR/ArduinoGP22 RF Photon Correllation
charlesbaynham
100 × 100 mm116 parts4LNo license11
AVR/ArduinoMinim
matthewdias
276.2 × 79.8 mm113 parts2LMIT11
AVR/ArduinoDizzy40
str-dst
229 × 80 mm101 parts2LNo license11
AVR/ArduinoLPA-hardware
taborlab
143 × 74 mm81 parts2LNo license11
AVR/ArduinoYouwu36
ChrisChrisLoLo
190.5 × 76.2 mm74 parts2LNo license11
AVR/ArduinoAquarium
baranovskiykonstantin
96.3 × 98 mm71 parts2LNo license11
AVR/ArduinoAvr transistor tester
vitaliy-bobrov
77.2 × 67.9 mm63 parts2LNo license11
AVR/ArduinoDriverino-Shield
weirdgyn
68.6 × 53.3 mm56 parts2LGPL-3.011
AVR/ArduinoVC4000MultiROM
mkeller0815
160 × 100 mm55 parts2LMIT11
AVR/ArduinoMyGenWashy
mayermakes
147.8 × 106.3 mm54 parts2LGPL-3.011
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