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/ArduinoArduino aprs tracker
billygr
70 × 55 mm21 parts2LNo license75
AVR/ArduinoFu keyboard
PiKeeb
496.6 × 153.7 mm586 parts2LCC-BY-SA-4.074
AVR/Arduino41 1350
cyril279
238.7 × 95.3 mm131 parts2LMIT74
AVR/ArduinoRS485 Soil moisture sensor
Miceuz
18 × 149 mm29 parts4LApache-2.073
AVR/ArduinoScarab ESC+RX
MarkR42
25 × 40 mm51 parts4LGPL-3.072
AVR/ArduinoFilled
kzrtn
59.3 × 63 mm31 parts2LNo license72
AVR/ArduinoRD40 display V1
lhm0
120 × 120 mm32 parts2LCC-BY-NC-4.071
AVR/ArduinoMPCNC-Nano-Estlcam-Shield
tnn85
160 × 100 mm92 parts2LCustom license70
AVR/ArduinoLergo modular
AxelVoitier
96.3 × 96 mm72 parts2LNo license70
AVR/ArduinoGh80-3003
evyd13
444.1 × 151.2 mm276 parts2LCC-BY-SA-4.069
AVR/ArduinoPLC-14500
nicolacimmino
160.1 × 101 mm160 parts2LGPL-3.069
AVR/ArduinoOpenPSX2AmigaPadAdapter
SukkoPera
58.9 × 44.2 mm42 parts2LCustom license69
AVR/ArduinoUnSplit
swiftrax
323.9 × 95.1 mm104 parts2LGPL-2.068
AVR/ArduinoTR-808-Clone
minisystem
300 × 105 mm1058 parts2LNo license67
AVR/ArduinoKbic65
b-karl
313.3 × 131.6 mm150 parts2LMIT67
AVR/ArduinoXling
mcusim
35 × 47 mm60 parts2LNo license67
AVR/ArduinoStatic AD
0xCB-dev
223.8 × 108.2 mm111 parts2LCustom license66
AVR/ArduinoVx8 gps
4x1md
43.5 × 43.5 mm30 parts2LMIT65
AVR/ArduinoQron0b
qewer33
35 × 35 mm29 parts2LGPL-3.062
AVR/Arduino0xCB-Pluto
17.8 × 33 mm26 parts2LCustom license61
AVR/ArduinoOpenLaserMouse
chris-jh
56 × 79.9 mm22 parts2LLGPL-3.061
AVR/ArduinoCpm43
Gtrx0
232.2 × 76.7 mm184 parts2LCERN-OHL-1.260
AVR/ArduinoAdbuino
akuker
30.5 × 63 mm43 parts2LGPL-2.060
AVR/ArduinoPlain60-flex edition
284.7 × 94.2 mm173 parts2LCC-BY-SA-4.057
AVR/ArduinoBarobord
sadekbaroudi
243.9 × 136.5 mm157 parts2LNo license57
AVR/ArduinoDiyBMS-CurrentShunt
stuartpittaway
90 × 72 mm45 parts2LCC-BY-NC-4.057
AVR/ArduinoTapecart diy
ikorb
33 × 53 mm25 parts2LNo license57
AVR/ArduinoNt980
373.2 × 131.8 mm225 parts2LCC-BY-SA-4.056
AVR/ArduinoSH-RPi hardware
hatlabs
65 × 56.5 mm153 parts4LCC-BY-4.056
AVR/ArduinoRescueAVR
felias-fogg
68.6 × 53.3 mm20 parts2LNo license56
AVR/ArduinoEnocderDriver
NikodemBartnik
84.3 × 58.4 mm35 parts2LNo license55
AVR/ArduinoLittle Big Scroll 6
TweetyDaBird
59.2 × 87 mm21 parts2LCC-BY-SA-4.055
AVR/ArduinoSmartPortSD SMD
djtersteegc
41 × 50 mm24 parts2LMIT54
AVR/ArduinoGBAHD Shield
gbaHD
48.3 × 51.8 mm34 parts2LCC-BY-NC-4.053
AVR/ArduinoAlvaro
Kaleidogeist
17.8 × 33 mm26 parts2LApache-2.053
AVR/ArduinoRosaline ortho
peej
285.4 × 94.9 mm148 parts2LMIT52
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