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/Arduino9SegCounter
martinbros
72.2 × 78.5 mm53 parts2LGPL-3.08
AVR/ArduinoFPV Receiver Diversity Pro Part1/2
Virtex7
50 × 29.5 mm53 parts2LNo license8
AVR/ArduinoEasyLight
ModischFabrications
50.2 × 41.3 mm41 parts2LCERN-OHL-S-2.08
AVR/ArduinoLibreductioner
andreasb242
50.2 × 73 mm39 parts2LGPL-2.08
AVR/ArduinoPSM60 Fader Controller
GadgetReboot
90.5 × 27.7 mm37 parts2LNo license8
AVR/ArduinoFordacp
tomaskovacik
39.7 × 28.7 mm36 parts2LNo license8
AVR/ArduinoBeetje 32U4 Blok
aspro648
68.6 × 53.3 mm33 parts2LNo license8
AVR/ArduinoNavidat
str-dst
56.2 × 99.5 mm32 parts2LCC-BY-NC-4.08
AVR/ArduinoLarge-Heart-PCB-LED-Pendant
SaltyPaws
202.4 × 142.2 mm32 parts2LMIT8
AVR/ArduinoSYZYGY-PMOD4
twam
45 × 60 mm28 parts2LNo license8
AVR/ArduinoBATS
brico-labs
68.9 × 53.6 mm28 parts2LNo license8
AVR/ArduinoArcader usb
mbarszcz-pcb
82 × 30 mm27 parts2LGPL-3.08
AVR/ArduinoJ0xx mainboard
jakobkg
67.5 × 63.2 mm27 parts2LNo license8
AVR/ArduinoWindLogger
re-innovation
45.1 × 56.5 mm16 parts2LNo license8
AVR/ArduinoBoard attiny2313a
SamantazFox
20.1 × 20 mm15 parts2LBSD-3-Clause8
AVR/ArduinoPerfplusplus
FyberLabs
68.6 × 53.3 mm457 parts2LNo license7
AVR/ArduinoGruvin9x
gruvin
168.5 × 54.5 mm261 partsNo license7
AVR/ArduinoPcb
0xCB-dev
381 × 165.6 mm250 parts2LCustom license7
AVR/ArduinoVoyager65
foggyflute
303.2 × 94.5 mm211 parts2LGPL-3.07
AVR/ArduinoCbm keyboard
fachat
386.1 × 102 mm208 parts2LNo license7
AVR/ArduinoKoalafications
swiftrax
304.8 × 123 mm186 parts2LCC0-1.07
AVR/ArduinoAT65C02 Hobby Computer
Kayto
241.3 × 149.9 mm161 parts2LCERN-OHL-1.27
AVR/ArduinoCortexPC
danwerner21
244 × 244 mm155 parts2LNo license7
AVR/ArduinoA500Mini-Internal-Functional-Keyboard
ea4gge
199.5 × 67.2 mm147 parts2LGPL-3.07
AVR/ArduinoGeneralPurposeAlarmDevice
PubInv
137.2 × 83.8 mm132 parts2LAGPL-3.07
AVR/ArduinoSPACEDOS02
UniversalScientificTechnologies
38 × 200 mm120 parts2LGPL-3.07
AVR/ArduinoNodo BMS
AugustoS97
149.2 × 83.7 mm107 parts2LGPL-3.07
AVR/ArduinoARDUINO BMS - Protection Board
simple-ee
62.3 × 85.5 mm97 partsMIT7
AVR/ArduinoBM42
228 × 78 mm93 parts2LCC-BY-NC-4.07
AVR/ArduinoDUINO
elVucko
50 × 50 mm87 parts4LMIT7
AVR/ArduinoPlc controller mega32l pcb scheme
dmogn
150 × 97 mm82 parts2LMIT7
AVR/ArduinoSDRReciever
KonradMcClure
100 × 100 mm78 parts2LNo license7
AVR/ArduinoIz1glg yaacw keyer
federicobriata
110 × 92.7 mm78 parts2LCC-BY-SA-4.07
AVR/ArduinoThc
festlv
123.8 × 99.7 mm72 parts2LNo license7
AVR/ArduinoNoPour
plertvilai
45.7 × 66 mm68 parts2LMIT7
AVR/ArduinoOpenPnPVis
angusgbishop
44.5 × 28 mm63 parts4LGPL-3.07
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