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/ArduinoSwitchbox3
AgOpenGPS-Official
110 × 54 mm24 parts2LGPL-3.020
AVR/ArduinoSimulator
OpenLogicEFI
97.6 × 70 mm40 parts2LNo license18
AVR/ArduinoSynmidi
Bad-Dog-Designs
40 × 218 mm91 parts2LGPL-2.014
AVR/ArduinoNRF servo Mega
michaelshiloh
85.1 × 53.3 mm12 parts2LAGPL-3.014
AVR/ArduinoMSAP-2-production routed
mehrantsi
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoWord watch
dragonlock2
36 × 36 mm122 parts2LApache-2.013
AVR/ArduinoSSI2130 Oscillator
powsplatboom
84 × 100 mm185 parts4LNo license11
AVR/ArduinoSoloCarbonite
davedarko
27 × 67 mm17 parts2LNo license11
AVR/ArduinoLogicAnalizer
John-Lluch
148 × 70 mm98 parts4LNo license10
AVR/ArduinoMeasure Battery Level
node9909
79 × 38.6 mm57 parts2LNo license10
AVR/ArduinoI2C slave with error injection
mschwingen
32 × 32 mm23 parts2LNo license10
AVR/ArduinoImu board
BUNPC
16 × 8 mm10 parts4LNo license10
AVR/ArduinoReflowOvenController
wangyeee
100 × 100 mm97 parts2LBSD-3-Clause9
AVR/ArduinoCAN Breakout
gregdavill
45 × 35 mm39 parts4LNo license9
AVR/ArduinoClock display
slomkowski
108.5 × 54.6 mm36 parts2LMIT8
AVR/ArduinoAttiny85
swayerloren
44.6 × 16.6 mm13 parts2LMIT8
AVR/ArduinoOPLL01
hwreverse
101.6 × 53.3 mm30 parts2LBSD-3-Clause7
AVR/ArduinoProtoTypeFN
tjhiker
174.1 × 69.9 mm7 parts2LNo license7
AVR/ArduinoTachometer
UofA-BAJA
80 × 85 mm24 parts2LNo license6
AVR/ArduinoGeophonetdsconductschem
ARTS-Laboratory
33 × 73.7 mm21 parts2LCC-BY-SA-4.06
AVR/ArduinoRevopod1
tongtongwang86
60 × 37 mm53 parts4LCC-BY-NC-4.05
AVR/ArduinoMZ80PS2
Board-Folk
67.1 × 67 mm12 parts2LNo license5
AVR/ArduinoVGA SRAM SHIELD DB MULTIPLEX
levvayner
99.5 × 53.5 mm42 parts6LNo license4
AVR/ArduinoUc101panel
joshajohnson
100 × 48 mm39 parts2LNo license4
AVR/ArduinoPcb tile game tile sos
bytesizedengineering
69.3 × 60 mm38 parts2LGPL-3.04
AVR/ArduinoComparison
zyyan20h
35 × 34.7 mm31 parts2LNo license4
AVR/ArduinoMySensors 8Relais
LudovicLemarinel
85 × 95 mm25 parts2LNo license4
AVR/ArduinoNANO HAT
danielwilczak101
51.6 × 59.1 mm16 parts2LNo license4
AVR/ArduinoMeme shield 2019
ParadigmHyperloop
68.6 × 53.3 mm8 parts2LCustom license4
AVR/ArduinoUno hat dev (1)
Charmander542
155 × 58.1 mm98 parts2LNo license3
AVR/ArduinoWp controller box
pypilot
75.1 × 50 mm77 parts4LNo license3
AVR/ArduinoPwmController
bask185
100 × 100 mm74 parts2LNo license3
AVR/ArduinoMidiMood
silveirago
422.4 × 118.2 mm45 parts2LNo license3
AVR/ArduinoGLVColoumbCounterTest
uvmaero
80.9 × 36.2 mm43 parts2LCC-BY-SA-4.03
AVR/ArduinoIntegrated Power Board
MUNAKATA-EPC
56 × 53.2 mm25 parts2LMIT3
AVR/ArduinoMicromouse
prashantbhandary
57 × 49.4 mm22 parts2LNo license3
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