PORTFOLIO workshops arduino day 2015 akcja kreacja arduino day 2015 munari open form przetwory 8 przetwory 9 rebrick walden shrink Arduino Day is a worldwide celebration of Arduino’s birthday. It's a 24 hours-long event –organized directly by the community, or by the Arduino team– where people interested in Arduino get together, share their experiences, and learn more. I participated in Arduino Day Warsaw 2015 taking part in 3 workshops: basics, light-sensitive robot building and Bluetooth communication.