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/ArduinoIR-sensor-01
sl1pkn07
20.5 × 8 mm6 parts2LNo license0
AVR/ArduinoPIR InterfaceBoard
danieltith
106.9 × 53 mm4 parts2LNo license0
AVR/ArduinoBNO055 08092019
Aharoni-Lab
5.6 × 5 mm8 parts2LGPL-3.0157
AVR/ArduinoGigan rev2
Skycode22
305.9 × 135.1 mm14 parts2LNo license132
AVR/ArduinoHB-UNI-SEN
alexreinert
44.5 × 30.5 mm15 parts2LCC-BY-NC-4.0104
AVR/ArduinoEProg
KALTCHUK
100 × 71.1 mm12 parts2LNo license94
AVR/ArduinoArduino Nano
sabogalc
43.2 × 17.8 mm28 parts2LWTFPL93
AVR/ArduinoMicrosd append
thebiguno
49.4 × 34.2 mm32 parts2LNo license75
AVR/ArduinoGrooveboard mx atmel au
ianklug
118.1 × 22.9 mm24 parts2LCC-BY-SA-4.058
AVR/ArduinoNfc sense panel
unsurv
121 × 105.3 mm16 parts4LNo license49
AVR/ArduinoStepper
hisashin
31 × 49 mm28 parts2LGPL-3.047
AVR/ArduinoCAMERA MODULE
CodapopKSP
13 × 14 mm46 parts2LGPL-3.037
AVR/ArduinoUSB C PD PSU
niektb
24 × 100 mm65 parts2LCC-BY-SA-4.034
AVR/ArduinoVm010-channelcontrol
mirdej
30 × 181.5 mm58 parts4LNo license23
AVR/ArduinoGreaseweazle F1 Gotek Rev 2B
solarmon
114.1 × 94.4 mm52 parts2LNo license21
AVR/ArduinoBurgerDisk-THT-AngledDB19
colinleroy
93.7 × 86.9 mm14 parts2LMIT20
AVR/ArduinoNQSAP Loader / Debugger and Clock
TomNisbet
102 × 96 mm42 parts2LMIT18
AVR/ArduinoFirmware tester board 2
olin-electric-motorsports
49.9 × 75.4 mm58 parts2LNo license14
AVR/ArduinoPre j5-model alignment route v1
mehrantsi
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoEVOLVER Temperature Calibration Module
FYNCH-BIO
92.7 × 82.6 mm28 parts2LNo license11
AVR/ArduinoRentree ARES
AresEnsea
57 × 56.3 mm27 parts4LNo license7
AVR/Arduino12to5Buckconverter
hwreverse
35 × 31 mm15 parts2LBSD-3-Clause7
AVR/ArduinoProject3 2layer
AronAyub
57.1 × 33.9 mm17 parts2LNo license6
AVR/ArduinoSensor Spike
ARTS-Laboratory
55.9 × 68.6 mm6 parts2LCC-BY-SA-4.06
AVR/ArduinoMySensors 1Relay
LudovicLemarinel
42.5 × 50 mm14 parts2LNo license4
AVR/ArduinoHbridge controller
pypilot
50 × 75 mm50 parts2LNo license3
AVR/ArduinoLCD LOCONET SHIELD
bask185
80.5 × 80 mm38 parts2LNo license3
AVR/ArduinoDemo board panelized
uvmaero
75 × 82.1 mm14 parts2LCC-BY-SA-4.03
AVR/ArduinoRCLight
Ehryk
14.7 × 16.2 mm26 parts2LBSD-3-Clause2
AVR/ArduinoCard avr
McbeEringi
90.2 × 53.3 mm18 parts2LMIT2
AVR/ArduinoWater sensor1
48.3 × 58.4 mm11 parts2LCC-BY-SA-4.02
AVR/ArduinoPhaeton
formicidae-tracker
55 × 50 mm37 parts2LNo license1
AVR/ArduinoIRS
Lee34667
79 × 78 mm23 parts2LNo license1
AVR/ArduinoDemo
27.9 × 21.6 mm16 parts2LNo license1
AVR/ArduinoDH11-I2C
pmacik
27.9 × 3.8 mm7 parts2LNo license1
AVR/ArduinoIowa rover kiosk power cycler
scimusmn
27.9 × 27.9 mm5 parts2LNo license1
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