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/ArduinoUNOvx
bitomaxsp
72 × 54 mm37 parts2LMIT0
AVR/ArduinoPiano Lights
ddribin
98 × 51.6 mm36 parts2LMIT0
AVR/ArduinoDotkb
kemfic
100 × 50 mm36 parts2LNo license0
AVR/ArduinoWave box
Cingciong
128.8 × 141.7 mm36 parts2LNo license0
AVR/ArduinoHexapod
GreatMesa
108.8 × 82.1 mm36 parts4LNo license0
AVR/ArduinoAlarmClock
GHOST-mHBr
69.8 × 50 mm36 parts2LNo license0
AVR/ArduinoATmega based mixed signal design
Melek-Cherif
53.5 × 39.8 mm36 parts4LNo license0
AVR/ArduinoDIY pulse oximeter
TeenEngineer
51.6 × 22.6 mm36 parts2LMIT0
AVR/ArduinoSlice RLHT
feastorg
70 × 100 mm36 parts2LGPL-3.00
AVR/ArduinoKicad sensor interface board
RangeMaster370
54 × 42 mm36 parts2LNo license0
AVR/ArduinoLatheDisplay
eshazen
85.7 × 63.5 mm36 parts2LNo license0
AVR/ArduinoBus sonar10
makerbus
100 × 50 mm36 parts2LNo license0
AVR/ArduinoSchema dmp
ANToNyS21
246 × 170 mm36 parts2LNo license0
AVR/ArduinoBio-Data-Bridge v1.0
bgmbzk
109.9 × 32.7 mm35 parts2LNo license0
AVR/Arduino101 test
Dechatorn200x
78.7 × 54.4 mm35 parts4LNo license0
AVR/ArduinoPCB Christmas Tree
reivax-boucoi
88.7 × 98 mm35 parts2LGPL-3.00
AVR/ArduinoSmartHomeSystem
danielopaleye01
155 × 136.5 mm35 parts2LNo license0
AVR/ArduinoLumiGuard-Intelligent-Dual-UV-White-Control-System
IsmelArab
50 × 50 mm35 parts2LApache-2.00
AVR/ArduinoSEQ32
conradv5379
101.6 × 53.3 mm35 parts2LNo license0
AVR/ArduinoWiredController
asukiaaa
90 × 50 mm35 parts2LNo license0
AVR/ArduinoGigante de-MDF
marlaoza
97.5 × 73.5 mm35 parts2LNo license0
AVR/ArduinoMad
0x007E
36 × 47 mm35 parts2LCC-BY-NC-4.00
AVR/ArduinoClimate control
oskarengdahl
18 × 55 mm35 parts2LMIT0
AVR/ArduinoBREAD Slice
70 × 100 mm35 parts2LGPL-3.00
AVR/ArduinoPolpoBoard
snjung
166.3 × 134.8 mm34 parts2LMIT0
AVR/ArduinoOxygen concentrator
Jibin-Manual
68.6 × 53.3 mm34 parts2LGPL-3.00
AVR/ArduinoRarara
knx444
90 × 100 mm34 parts2LNo license0
AVR/ArduinoMm main pcba gen1-reva
MakaniMotion
97 × 97 mm34 parts2LCustom license0
AVR/ArduinoSwitcher shield
railroad-editor
99.1 × 53.3 mm34 parts2LNo license0
AVR/ArduinoSimple i2c screen
Hackuarium
100 × 73.7 mm34 parts2LNo license0
AVR/ArduinoBUENO-Gas-Sensor
MOSH-Insa-Toulouse
70.1 × 79 mm34 parts2LNo license0
AVR/ArduinoSolatronG2U
Acramonics
78.1 × 71.4 mm34 parts2LCC0-1.00
AVR/ArduinoGamePad
patelmikin14
100 × 62 mm34 parts2LMIT0
AVR/ArduinoRadHardSchematics
FraserD404
203 × 79.7 mm34 parts2LNo license0
AVR/ArduinoMains-Voltage-Device-Controller
kkorzen
85 × 106.5 mm34 parts2LMIT0
AVR/ArduinoExtruder ctrl circuits
biodigitalmatter
68.6 × 58 mm33 parts4LNo 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