59 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/ArduinoMiniscope v4-PYTHON480
Aharoni-Lab
10.5 × 9 mm32 parts6LGPL-3.0157
AVR/ArduinoDefcoNFC Hardware Badge
monero-project
70 × 100 mm31 parts2LCERN-OHL-1.2115
AVR/ArduinoSensored BLDC Controller
rjwalters
70 × 90 mm42 parts4LMIT63
AVR/ArduinoSW2
AgOpenGPS-Official
89 × 52 mm10 parts2LGPL-3.020
AVR/ArduinoPre connector model normalization v1
mehrantsi
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoMS v4 ETL LED Driver
6 × 10.5 mm20 parts6LGPL-3.0157
AVR/ArduinoUsb joystick
80 × 60 mm38 parts4LMIT63
AVR/ArduinoPre cpl coordinate fix v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoPhotoSensors
ParadigmHyperloop
95 × 95 mm94 parts2LCustom license11
AVR/ArduinoMiniscope v4-MCU
7.5 × 8 mm12 parts6LGPL-3.0157
AVR/ArduinoHihat
bread-modular
30.5 × 68.6 mm52 parts2LMIT65
AVR/ArduinoUsb joystick routed
80 × 60 mm38 parts4LMIT63
AVR/ArduinoPre current source usb keepout repair v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoBNO055 08092019
5.6 × 5 mm8 parts2LGPL-3.0157
AVR/ArduinoUSB C PD PSU
niektb
24 × 100 mm65 parts2LCC-BY-SA-4.034
AVR/ArduinoPre j5-model alignment route v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoMiniscope v4-VDD-PIX-FC
6.5 × 3.5 mm7 parts2LGPL-3.0157
AVR/ArduinoMSAP-2-production source
300 × 248.8 mm375 parts6LMIT13
AVR/ArduinoEnv
30.5 × 68.6 mm29 parts2LMIT65
AVR/ArduinoATtiny85 Charlieplex LED Grid
50 × 55 mm19 parts2LMIT63
AVR/ArduinoMcc
30.5 × 68.6 mm22 parts2LMIT65
AVR/ArduinoATtiny85 Charlieplex LED Grid
50 × 55 mm19 parts2LMIT63
AVR/ArduinoEurorack Dual Envelope Module
Len42
40.3 × 108.2 mm57 parts2LNo license50