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/ArduinoKeyboard
achyrocalyx
308 × 127 mm186 parts2LNo license1
AVR/ArduinoKeyboard
georgsnarbuts
313 × 129 mm185 parts2LCC-BY-NC-4.01
AVR/ArduinoMaster old
formicidae-tracker
100 × 100 mm182 parts2LNo license1
AVR/ArduinoRf60
emilytrau
285 × 94.6 mm181 parts2LMIT1
AVR/ArduinoRaise right asym
Dygmalab
155.7 × 96 mm178 parts2LCERN-OHL-1.21
AVR/ArduinoLaser keyboard
bbrfkr
336.8 × 109.9 mm177 parts2LNo license1
AVR/ArduinoKintsugi v2
apaydev
384.7 × 101.5 mm176 parts2LMIT1
AVR/ArduinoKatana60-pro
rominronin
285 × 94.6 mm165 parts2LMIT1
AVR/ArduinoCauseway THT
isandrocks
287 × 121 mm162 parts2LCC-BY-NC-4.01
AVR/ArduinoControl panel
lucanastasio
65 × 58 mm158 parts2LNo license1
AVR/ArduinoHalo
wyolum
243.8 × 66.3 mm152 parts2LApache-2.01
AVR/ArduinoInefficient coil gun
jamesbrayy
440 × 196 mm151 parts2LMIT1
AVR/ArduinoSlave Board
columbia-fsae
412.7 × 77.5 mm148 parts2LNo license1
AVR/ArduinoTiNA - Controller for TiM
190 × 152 mm147 parts2LNo license1
AVR/ArduinoEngineManagementSimpleWithMosfets
ieb
150 × 100 mm147 parts2LNo license1
AVR/ArduinoPhmeter
Hackuarium
100 × 87 mm145 parts2LCustom license1
AVR/ArduinoLineSensor
Tellurnoid
389.4 × 319.7 mm145 parts2LNo license1
AVR/ArduinoThe PETER keyboard
calvin-mcd
243.3 × 95.4 mm141 parts2LGPL-3.01
AVR/ArduinoOSCAR
tne-lab
155.6 × 120 mm139 parts4LMIT1
AVR/ArduinoV0.4.4b
venderbroeck
100 × 100 mm138 parts2LGPL-2.01
AVR/ArduinoDAQ Board
sparkerBCI
105.4 × 58.9 mm138 parts4LNo license1
AVR/ArduinoCustom keyboard
balkacer
292 × 99.9 mm135 parts2LNo license1
AVR/ArduinoQuantizerBack
BenRufenacht
170 × 95 mm130 parts2LNo license1
AVR/ArduinoEngineDataLogger-FrontControls
techie66
95 × 95 mm130 parts2LGPL-2.01
AVR/ArduinoMulti vu eurorack
jjradler
41.3 × 109.5 mm130 parts2LCC0-1.01
AVR/ArduinoBreezeblock-0.1
NoEyesJustFun
238.6 × 96.1 mm126 parts2LNo license1
AVR/ArduinoMDA80486SBC Final
mattheeewahn
150 × 150 mm123 parts4LGPL-3.01
AVR/ArduinoIR remote controlled amplifier main board
ak1211
159 × 100 mm123 parts2LMIT1
AVR/Arduino2 679
wszeto9
101.6 × 95.3 mm122 parts2LNo license1
AVR/ArduinoNeolexis
rhettjay
141 × 103.6 mm121 parts2LGPL-3.01
AVR/ArduinoMain
ZeniteSolar
103.5 × 137.2 mm120 parts2LGPL-3.01
AVR/ArduinoNamePlate
scottalmond
254 × 40.6 mm119 parts2LNo license1
AVR/ArduinoErgodox extended
Gephorian
201.9 × 170.2 mm119 parts2LNo license1
AVR/ArduinoC128DKEYBOARD
danwerner21
437.8 × 127.8 mm119 parts2LNo license1
AVR/ArduinoMain
qweqq
158.8 × 65.7 mm116 parts2LMIT1
AVR/ArduinoMF RMP Panel
stefanofinetti
142 × 83 mm115 parts2LGPL-3.01
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