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/ArduinoAskSinPP
c-klinger
48.5 × 48.5 mm40 parts2LCC-BY-NC-4.00
AVR/ArduinoMGMS PCB-PcbDoc
liu2g
96 × 71.4 mm40 parts2LMIT0
AVR/ArduinoEdge lit display
bmatcuk
204 × 20 mm40 parts2LNo license0
AVR/ArduinoMgc m4809
0x007E
33 × 48.9 mm39 parts2LCC-BY-NC-4.00
AVR/ArduinoDrvce
jkordek1
130.9 × 182.3 mm39 parts2LNo license0
AVR/Arduino2024.03.15 AVR SCORE BOARD RCV v2
jarwyg
72.2 × 61.5 mm39 parts2LMIT0
AVR/ArduinoThermostat
jamesrwaugh
111.2 × 76.5 mm39 parts2LNo license0
AVR/ArduinoUpsKeypadTerminal
kbittle
109.2 × 80 mm39 parts2LNo license0
AVR/ArduinoPICUINO
icarofcb
68.9 × 53.6 mm39 parts2LNo license0
AVR/ArduinoBit v5.0.0
alazifi
97 × 75 mm39 parts2LNo license0
AVR/ArduinoAtsamd21
Olin-Rocketry
88.9 × 88.9 mm39 parts2LNo license0
AVR/ArduinoSlice RLAY
feastorg
70 × 100 mm39 parts2LGPL-3.00
AVR/ArduinoScout
morgobongo
145.3 × 44.5 mm38 parts2LCustom license0
AVR/ArduinoIc202-frequency meter
joseluu
80 × 50 mm38 parts2LNo license0
AVR/ArduinoPortable Charger
jacksterb1234
38.6 × 31.8 mm38 parts2LNo license0
AVR/ArduinoSmart-Garbage-Collection
cs684-2018
100.1 × 54.7 mm38 parts2LNo license0
AVR/ArduinoIO NRF
crlab3
79 × 49.9 mm38 parts2LNo license0
AVR/ArduinoBusiness card
zeti1223
72 × 38 mm38 parts2LNo license0
AVR/ArduinoMie1001 daq board
Chaospossum
68.6 × 53.3 mm38 parts2LNo license0
AVR/ArduinoPANEL SOLAR Y CONTROL
nicolasmino
65 × 70 mm38 parts2LNo license0
AVR/ArduinoNanpy blinds control
megasaturnv
132.1 × 48.3 mm38 parts2LGPL-3.00
AVR/ArduinoPeripherals
bullestock
76.5 × 61.8 mm38 parts2LNo license0
AVR/ArduinoLORA remote relays
motivemachine
85.1 × 99.8 mm38 parts2LApache-2.00
AVR/ArduinoLow power weather station
shields-jena-lena
83.8 × 99.1 mm38 parts2LGPL-3.00
AVR/ArduinoPBITzBackplane
dumaiss
243.8 × 243.8 mm38 parts6LSHL-2.10
AVR/ArduinoPiPlay3D
iZboxo
46.2 × 60.3 mm37 parts2LNo license0
AVR/ArduinoArduino dolly
hollop90
26.8 × 53 mm37 parts4LNo license0
AVR/ArduinoGhost bot
ChrisAlphabet
111 × 60 mm37 parts2LNo license0
AVR/ArduinoPedalSHIELD-MEGA
nablum
62 × 122 mm37 parts2LMIT0
AVR/ArduinoElaraGNSSMKRShield
generationmake
61.5 × 25 mm37 parts2LCustom license0
AVR/ArduinoBloom pcb designs
Geil-X
42 × 46 mm37 parts4LNo license0
AVR/ArduinoDesign
Gabriel8503
66.5 × 60 mm37 parts4LMIT0
AVR/ArduinoMicroArd
KhazAkar
39.6 × 53.1 mm37 partsNo license0
AVR/ArduinoController mb usb
c3h9dx
115 × 69.8 mm37 parts2LNo license0
AVR/ArduinoAAquad
Fberbari
69.2 × 47.6 mm37 parts2LGPL-3.00
AVR/Arduino3lb-Melty
DylM0nster22
128 × 70 mm37 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